Sub-Domain 2 · Medicaid Delivery Architecture

SD2 documents the Medicaid delivery architecture governing the Medicaid-enrolled population in PA-3 — the federal entitlement framework under Social Security Act Title XIX, the Pennsylvania HealthChoices Physical Health (HC-PH) managed-care framework with four Southeast Zone PH-MCOs (Aetna Better Health, Health Partners Plans, Keystone First operated by AmeriHealth Caritas, and UnitedHealthcare Community Plan), Community HealthChoices (CHC) for dual-eligibles and LTSS-eligible adults, Children's Health Insurance Program Title XXI, the structurally distinctive Philadelphia behavioral-health carve-out to Community Behavioral Health (treated substantively in SD6), and the OBBBA Medicaid delivery-side flow-through operative October 2026 through FY 2032. Coverage-eligibility, enrollment, and redetermination architecture sits at D12 SD2 per Boundary 1; D21 SD2 owns provider participation, plan operations, pharmacy delivery, and the clinical pathway from enrollment forward.

Legal Architecture

Constitutional foundation

Medicaid operates under Article I § 8 (Spending Clause; General Welfare). 10th Amendment reserves state administrative discretion at program operations subject to federal conditions. The constitutionality of the Medicaid program is settled; NFIB v. Sebelius, 567 U.S. 519 (2012) preserved state discretion on ACA Medicaid expansion, which Pennsylvania accepted in 2015. No constitutional tension specific to Medicaid delivery is operative in PA-3 in 2026.

Federal statutory layer

Social Security Act Title XIX. 42 U.S.C. § 1396 et seq. Authorizes the federal Medicaid grant-in-aid program; sets mandatory eligibility categories, mandatory benefits, federal medical assistance percentage (FMAP) architecture, and provider-tax framework. Statutory stability: HIGH at program level; administrative vulnerability: MODERATE-HIGH at federal regulatory implementation given the 2025 OBBBA reconciliation modifications and the Trump administration's CMS regulatory posture.

Children's Health Insurance Program — Title XXI. 42 U.S.C. § 1397aa et seq. Pennsylvania operates a separate CHIP program (PA CHIP) for children up to 314% FPL (effectively 319% with 5% disregard); delivery-side architecture overlaps with HealthChoices managed-care infrastructure. Statutory stability: HIGH; administrative vulnerability: MODERATE.

One Big Beautiful Bill Act of 2025 (P.L. 119-21). Signed July 4, 2025. Five sections directly affect Medicaid delivery architecture and operate in sequence beginning October 2026 through FY 2032: Section 71107 establishes 6-month eligibility redeterminations effective December 2026; Section 71109 imposes noncitizen Medicaid restrictions effective October 1, 2026; Section 71115 establishes the expansion-state provider-tax safe-harbor stepdown from 6.0% to 5.5% beginning FY 2028 and to 3.5% by FY 2032; Section 71117 establishes MCO-tax tightening (Medicaid MCOs cannot be taxed at higher rates than commercial MCOs); Section 71119 establishes community-engagement work requirements (80 hours/month) for expansion adults effective January 1, 2027. Section 71401 establishes the Rural Health Transformation Fund ($10 billion annually FY 2026-2030; $5B equal-state allocation plus $5B rurality-and-application-based allocation; first distributions in 2026 with December 29, 2025 initial state-application decisions). CMS administratively names OBBBA as "Working Families Tax Cut" (WFTC) legislation in implementation documentation. Statutory stability: HIGH at enactment (reconciliation-passed; difficult to amend). Administrative vulnerability: HIGH at CMS implementation.

42 C.F.R. Part 438 — Medicaid Managed Care. CMS-administered federal regulatory framework governing all Medicaid managed-care contracts; network adequacy; actuarial soundness rate-setting; enrollee protections; appeals architecture; medical loss ratio requirements. The 2024 Final Rule streamlining Medicaid / CHIP eligibility was placed on moratorium by OBBBA Section 71101 through September 30, 2034.

Section 1115 demonstration waivers and Section 1915(b) / (c) waivers. Pennsylvania operates Community HealthChoices under concurrent 1915(b) (mandatory managed care) and 1915(c) (home and community-based services) waivers; PA does not currently operate a Section 1115 demonstration affecting general Medicaid managed care.

Federal agency layer

Centers for Medicare & Medicaid Services (CMS). CMS administers federal Medicaid oversight; approves state plans; reviews managed-care contracts under 42 C.F.R. Part 438.812. CMS Region 3 (Philadelphia) at 801 Market Street, Suite 9400, Philadelphia, PA 19107 is the regional office covering Pennsylvania. CMS Administrator: Mehmet Oz. CMCS Director: Dan Brillman. Administrative vulnerability: HIGH. The Trump administration's CMS regulatory posture on Medicaid managed care, work requirements, and provider-tax implementation is the dominant administrative-vulnerability variable for SD2 delivery architecture; CMS rulemaking through 2026-2027 will determine the precise contour of OBBBA delivery-side effects. CMS implementation sequence to date: November 18, 2025 CMCS Informational Bulletin (eligibility / financing / lawful enrollment); December 8, 2025 Community Engagement CMCS Informational Bulletin (Section 71119); early February 2026 CMS Final Rule "Preserving Medicaid Funding for Vulnerable Populations — Closing a Health Care-Related Tax Loophole" (provider-tax statistical-test tightening; CBO $35 billion FY 2026-2034; CMS internal scoring $78 billion base up to $313 billion counterfactual); January 29, 2026 CMS Fact Sheet on Medicaid Technology Companies pledging $600 million; $200 million Government Efficiency Grants FY 2026. CMS Interim Final Rule due June 1, 2026. Beneficiary outreach must begin no later than December 31, 2026; retroactive coverage reduction (Section 71107) to 60 days traditional / 30 days expansion effective January 1, 2027.

HHS Office of Inspector General (OIG). Audits Medicaid program integrity; managed-care fraud and abuse oversight. Administrative vulnerability: MODERATE.

State statutory and agency layer

Pennsylvania Public Welfare Code. 62 P.S. § 101 et seq. Establishes PA Medical Assistance; authorizes PA DHS to operate the Medicaid program; authorizes provider-tax architecture (currently 6% on hospital net inpatient revenue; expected to be affected by the OBBBA stepdown).

55 Pa. Code Ch. 1101 et seq. PA Medical Assistance regulations; implements 62 P.S. through PA DHS regulations; sets provider participation requirements; managed-care contracting standards; provider rate-setting methodologies.

PA Act 22 of 2011. Codified the Pennsylvania HealthChoices managed-care mandatory enrollment framework.

Pennsylvania Department of Human Services (DHS), Office of Medical Assistance Programs (OMAP). 625 Forster Street, Harrisburg, PA 17120. Administers HealthChoices Physical Health; contracts with PH-MCOs by zone; reviews managed-care actuarial rates; oversees provider participation. The Southeast Zone (covering Philadelphia County and surrounding counties) is served by Aetna Better Health, Health Partners Plans, Keystone First (AmeriHealth Caritas), and UnitedHealthcare Community Plan. Administrative vulnerability: MODERATE-HIGH. PA DHS implementation discretion is the principal state-level variable affecting OBBBA delivery-side flow-through.

PA DHS Office of Long-Term Living (OLTL). Administers Community HealthChoices for dual-eligibles and LTSS-eligible adults across all five zones. Oversees the three current statewide CHC-MCOs (AmeriHealth Caritas / Keystone First; PA Health & Wellness; UPMC CHC) and the August 2024 re-procurement adding Aetna Better Health and Health Partners Plans (readiness review pending as of late 2025).

Pennsylvania Insurance Department. Licenses Medicaid managed-care plans operating in Pennsylvania; reviews market-conduct examinations; coordinates with PA DHS on managed-care plan financial solvency.

PA Independent Enrollment Broker (IEB). 1-844-824-3655. Contracted with PA DHS to provide choice counseling and assistance with eligibility and enrollment for individuals seeking LTSS services; operates the enrollchc.com enrollment website; assigns default MCOs where the beneficiary does not select.

Local statutory and agency layer

Philadelphia Code Title 6 — Health. Authorizes the Philadelphia Department of Public Health (PDPH) and Philadelphia Department of Behavioral Health and Intellectual disAbility Services (DBHIDS) operational architecture. The Philadelphia behavioral-health-Medicaid carve-out is administered through CBH per Philadelphia Code architecture and HealthChoices BH carve-out contracts. Cross-reference SD6 for substantive analysis.

Philadelphia Department of Public Health (PDPH). Operates the Philadelphia health center system delivering safety-net primary and preventive care to Medicaid beneficiaries and uninsured populations. Cross-reference SD5.

Community Behavioral Health Philadelphia (CBH). 801 Market Street, Suite 7000, Philadelphia, PA 19107. County-managed BH-MCO administering the Medicaid HealthChoices behavioral-health carve-out for Philadelphia County residents. CBH is the BH delivery vehicle for all HealthChoices PH-MCO enrollees in Philadelphia regardless of physical-health plan selection — beneficiaries have no choice in BH plan. Cross-reference SD6.

Philadelphia County Assistance Office (CAO). Multiple locations (1410 W. Erie Avenue, Philadelphia, PA 19140; 1701 S. Broad Street, Philadelphia, PA 19148). Implements PA DHS-administered Medicaid eligibility determinations at the county level (D12 boundary territory) and serves as the operational interface for redeterminations including the OBBBA 6-month redetermination architecture beginning December 2026.

Cross-cutting structural features

Three structural features recur across the SD2 constituent profiles.

First, the multi-plan PH-MCO architecture plus CBH carve-out creates parallel delivery tracks. Each PH-MCO operates a separately-contracted provider network, specialty-care authorization architecture, prescription drug formulary, and care-management infrastructure. CBH administers all behavioral-health authorizations on a separate track. Integration burden falls on the beneficiary or their care manager, not on the plans.

Second, the OBBBA delivery-side flow-through operates as a four-mechanism compound through FY 2032: provider-tax freeze October 1, 2026; 6-month redetermination December 2026; work-requirement January 1, 2027; safe-harbor stepdown to 3.5% by FY 2032. CBO projects 9.1 million Medicaid recipients affected by provider-tax provisions by FY 2034; $11.9 billion annual federal Medicaid funding decline across 18 expansion states once caps fully implemented.

Third, the asymmetric federal-state authority allocation places texture-level decisions about plan contracting, network adequacy, and procedural protection at state administrative discretion. Federal House representation operates at the floor (OBBBA technical-corrections, CMS oversight, Rural Health Transformation Fund allocation). PA-state-level engagement is the principal texture-level locus.

Constituent profiles

These profiles illustrate the structural features above. The pathways are drawn from current Pennsylvania Medicaid statute and verified statewide enrollment data applied to documented PA-3 conditions; the people are composites with no claim to identifiable individuals.

Profile 1: HealthChoices working-age family of four in North Philadelphia

Constituent type: a household of four (two working-age parents at approximately $35,000 combined household income; two children under age 12) in the North/Northwest Core sub-area. Triggering event: loss of employer-sponsored coverage when one parent's hours are reduced below the 30-hour ACA full-time threshold; household income falls below 138% FPL; household qualifies for Medicaid under Group VIII expansion and the children remain Medicaid-eligible under standard categorical thresholds.

Pathway through the institutional system. The household applies at COMPASS (compass.state.pa.us) or at the local Philadelphia CAO. Eligibility determined at D12 SD2 boundary; delivery side begins at PH-MCO selection. Household receives notice from PA Enrollment Services (1-800-440-3989; enrollnow.net); if no selection within the choice window, plan auto-assigned. If selection made, household chooses among Aetna Better Health, Health Partners Plans, Keystone First, or UnitedHealthcare Community Plan. Provider-network research required: household must check whether existing pediatrician, primary-care provider, and pharmacy participate in the selected PH-MCO. Auto-enrolled in Community Behavioral Health (CBH) for any behavioral-health services — no choice in BH plan.

Outcome. Family receives Medicaid coverage at HealthChoices PH-MCO with separate CBH coverage for any behavioral-health services. Annual redetermination cycle transitions to 6-month cycle in December 2026 under OBBBA Section 71107; procedural-loss exposure at each renewal cycle (cross-reference D12 SD8). PH-MCO provider-network adequacy is the principal delivery-side variable; if the family's existing primary care provider does not accept the selected plan, the family must either change providers or change plans (continuous open enrollment permits switching). The MC60 Both/And operates here — substantive Medicaid delivery serves the family AND structural OBBBA-driven procedural-loss plus fiscal-architecture flow-through compounds at each renewal cycle plus at the provider-network adequacy layer.

Profile 2: CHC dual-eligible navigating LTSS need in West Philadelphia

Constituent type: a widowed beneficiary age 72 with Medicare Parts A and B from age-65 entitlement, SSI plus a small private pension placing household income at approximately $1,400 per month, in the West Philadelphia Core sub-area. Triggering event: onset of moderate dementia plus chronic obstructive pulmonary disease requiring substantial activities-of-daily-living assistance; functional eligibility for CHC LTSS becomes operative.

Pathway through the institutional system. Existing Medicare coverage administered separately (cross-reference SD1 G21-SD1-04 dual-eligible architecture). For Medicaid-side coverage and LTSS, beneficiary applies via COMPASS or CAO; eligibility determined at D12 boundary. Calls PA Independent Enrollment Broker at 1-877-550-4227 to request in-home Functional Eligibility Determination. IEB assessor confirms nursing-facility clinical level of care. Beneficiary selects CHC-MCO from three current options (Keystone First CHC under AmeriHealth Caritas; UPMC Community HealthChoices; PA Health & Wellness); the August 2024 CHC re-procurement adds Aetna Better Health and Health Partners Plans to a 5-plan statewide architecture pending readiness review and contract execution. CHC-MCO assigns a service coordinator within 14 days. Service coordinator develops person-centered care plan addressing personal care assistance, medical equipment, home modifications. "Services My Way" self-direction option permits hiring family caregivers (spouse and legal guardian excluded).

Outcome. Beneficiary receives integrated dual-eligible coverage with Medicare-side clinical delivery and Medicaid CHC-side personal care, home health, and HCBS-supplemental services. Service coordinator handles cross-program coordination including transportation, durable medical equipment authorizations, and meal-delivery coordination. The OBBBA delivery-side flow-through is less immediate for dual-eligibles — Section 71119 work requirements do not apply to age 65+ beneficiaries; the Section 71107 6-month redetermination architecture applies but is less procedurally disruptive given the stability of dual-eligible status. However, the Section 71115 provider-tax stepdown flow-through affects CHC managed-care plan financial architecture — the same hospitals and providers serving CHC beneficiaries are affected — creating downstream LTSS provider-rate pressure and network-adequacy concern.

Profile 3: CHIP-eligible household navigating renewal in South Philadelphia (MC60 Both/And primary)

Constituent type: a working household with two children (one parent at approximately $52,000 income; household at approximately 200% FPL for a family of three; children eligible for CHIP at PA's effective 319% FPL threshold for school-age children) in the South/Southwest sub-area. Triggering event: annual CHIP renewal cycle; household must verify continued income eligibility under PA CHIP's MAGI architecture. OBBBA does not modify CHIP renewal cadence (annual; 6-month modification applies to Medicaid only).

Pathway through the institutional system. Household receives annual CHIP renewal notice; must verify income via COMPASS submission or paper renewal. CHIP-contracted MCO administers clinical delivery. Provider-network architecture is parallel to HealthChoices PH-MCO architecture but the specific CHIP plan options differ. Children receive comprehensive medical, dental, vision, and behavioral-health coverage under PA CHIP architecture.

Outcome. Children retain CHIP coverage at renewal. The MC60 Both/And operates here at the household level: CHIP delivery architecture is substantively functional AND the OBBBA-driven Medicaid-side disruption (6-month redetermination; provider-tax stepdown; work requirements) affects the household's adult Medicaid coverage decisions in parallel — if a parent on Medicaid expansion loses coverage at 6-month redetermination, the household-level continuity of care is disrupted even though the children retain CHIP. The Both/And is not symmetric: substantive delivery continues at CHIP architecture more reliably than at the adult Medicaid architecture, complicating household-level care planning.

Profile 4: PH-MCO enrollee navigating BH-PH coordination through CBH carve-out in Kensington

Constituent type: a single working-age adult (Group VIII expansion eligible; income approximately $22,000 / year or ~150% FPL) with a documented substance use disorder requiring MAT treatment plus stable employment requiring continuity of care across PH-MCO providers and behavioral-health services. Sub-area: North/Northwest Core (Kensington adjacent).

Pathway through the institutional system. Beneficiary enrolls in HealthChoices Medicaid (Group VIII expansion) via D12 boundary process; selects PH-MCO; automatically enrolled in CBH for behavioral-health. Physical-health services authorized through PH-MCO; SUD MAT treatment authorized through CBH (the structural carve-out architecture). Coordination between PH-MCO primary care and CBH SUD treatment is operationally complex — separate authorization tracks, separate prior-authorization rules, separate prescription drug formularies (PH-MCO formulary for physical-health medications; CBH formulary for SUD-MAT medications including buprenorphine and methadone). Cross-reference SD6 for substantive analysis.

Outcome. Beneficiary receives Medicaid coverage with effective access at the primary-care layer and at the CBH-administered SUD treatment layer, but coordination across the two architectures requires the beneficiary to navigate parallel delivery tracks. The OBBBA Section 71119 work-requirement architecture effective January 1, 2027 creates a downstream coverage-instability risk for this beneficiary if SUD treatment limits work-hour capacity below the 80 hours/month threshold; exemption architecture exists but is procedurally complex. The MC60 Both/And operates at the SUD-treatment-continuity dimension: substantive Medicaid delivery enables SUD treatment continuity AND the OBBBA work-requirement architecture creates structural disruption risk at exactly the population that requires care continuity.

Conversational note

What the Medicaid delivery architecture does to PA-3 residents is harder to see than what the eligibility architecture does. The eligibility architecture decides who is in and who is out at a discrete moment: an application is approved or denied, a renewal succeeds or fails. The delivery architecture by contrast operates continuously across the period of coverage — through provider-network selection, plan-formulary decisions, prior-authorization processes, care-coordination handoffs between physical health and behavioral health, and the ongoing operational interactions between the beneficiary and the managed-care plan administering their benefits. Most of the visible quality variation in Medicaid for PA-3 residents is delivery-architecture variation, not eligibility-architecture variation.

The most common misunderstanding about Pennsylvania's Medicaid managed care is that "Medicaid" is a single program with a single provider network. It is not. A PA-3 resident enrolled in Medicaid is enrolled in one of four physical-health plans (Aetna Better Health, Health Partners Plans, Keystone First, UnitedHealthcare Community Plan) and, if they live in Philadelphia, is also enrolled in Community Behavioral Health for behavioral-health coverage — a separate plan with a separate provider network, separate formulary, and separate authorization processes. Their primary-care physician may participate in one PH-MCO but not another; their psychiatrist may participate in CBH but their primary care may require coordination across plans for any shared services. This is the structural feature of Pennsylvania's HealthChoices architecture: it operates as multiple parallel managed-care delivery systems rather than as a single Medicaid delivery system. For dual-eligible beneficiaries with both Medicare and Medicaid, the architecture multiplies further — Medicare coverage operates separately from Community HealthChoices Medicaid coverage, and integration depends on plan-by-plan and provider-by-provider configuration.

The human consequence visible in 2026 is dual. The HealthChoices architecture has measurably extended healthcare access to working-age PA-3 residents through Medicaid expansion (approximately 750,000 Pennsylvanians covered by Group VIII expansion in steady-state) and has supported the LTSS independence of approximately 130,000 CHC HCBS recipients statewide. The same architecture is under sustained federal pressure beginning in late 2026 and continuing through the FY 2032 horizon: the 6-month redetermination architecture taking effect December 2026 creates procedural-loss disruption (cross-reference D12 SD8); the work-requirement architecture beginning January 2027 creates coverage-instability risk for the working-poor expansion population; the provider-tax safe-harbor stepdown beginning FY 2028 creates sustained downward pressure on Pennsylvania's Medicaid financing architecture that flows through to delivery-side payment rates. These mechanisms operate independently — each has its own legislative pathway, its own CMS implementation timeline, its own delivery-side flow-through — but they accumulate against the same PA-3 Medicaid-enrolled population. The MC60 Both/And captures both halves: substantive delivery continues for those who navigate the architecture successfully AND structural disruption compounds on a sustained basis for those whose lives don't fit the assumptions encoded in the redetermination calendars, the work-requirement exemptions, and the provider-network architectures.

The most analytically important feature visible at SD2 is the asymmetry between federal and state authority. Federal design sets the floor (eligibility categories; mandatory benefits; provider-tax framework; managed-care regulatory architecture under 42 C.F.R. Part 438) and federal legislation (OBBBA) modifies the floor. State implementation determines the texture of delivery (which plans participate; how provider networks are structured; how procedural protections at redetermination are designed; how CBH's BH carve-out coordinates with PH-MCO administration). Federal House representation operates at the floor — appropriation, statutory protection, CMS oversight on the federal implementation of OBBBA. PA state-level engagement operates at the texture — managed-care contracting, the CHC re-procurement implementation, the PA DHS administrative discretion on procedural-loss mitigation. Both layers are operative for PA-3 constituents; neither is sufficient alone.

Geography & representation

Data provenance. Pennsylvania Medicaid enrollment counts, the four-PH-MCO Southeast Zone roster, CHC enrollment, CHIP enrollment, OBBBA Section 71107 / 71109 / 71115 / 71117 / 71119 statutory architecture, Section 71401 Rural Health Transformation Fund architecture, CMS implementation guidance chronology, and PA Public Welfare Code provider-tax framework are documented in PA DHS publications, KFF May 2025 fact sheet, PA Office of Rural Health August 2024 data, PA Health Law Project (PHLP) HealthChoices guidance, AmeriHealth Caritas / Keystone First / UPMC / PA Health & Wellness CHC operational documentation, and CMS Medicaid.gov implementation materials. NFIB v. Sebelius, 567 U.S. 519 (2012) governs the constitutional architecture of state Medicaid expansion. AMA v. CMS litigation status and the 23-state lawsuit over $11 billion+ public-health funding rescissions are documented in litigation filings and AMA correspondence. PA-3-specific Medicaid enrollment disaggregation to Congressional District and to the four-sub-area resolution is not retrievable from publicly-facing Medicaid data products and is flagged for institutional retrieval.

PA-3 statistical profile. Pennsylvania's total Medicaid enrollment is approximately 2.99 million per the KFF May 2025 fact sheet. The HealthChoices managed care program enrolls over 2.2 million of these. CHC enrolled 383,000+ as of June 2024 (with 34% receiving HCBS and 11% receiving care in nursing facilities). CHIP enrolled 195,320 as of August 2024. Medicaid Expansion (Group VIII) covered approximately 1.1 million by 2023 and approximately 750,000 in steady-state. Philadelphia County's share of statewide Medicaid enrollment is approximately 22% per the Pennsylvania Office of Rural Health August 2024 data; applied to the statewide total, the Philadelphia County Medicaid-enrolled population is approximately 658,000, structurally inferred to include approximately 276,000 children, 290,000 working-age adults, 50,000 aged adults, and 42,000 blind / disabled adults. PA-3-specific magnitudes are not separately published. CBO estimates that OBBBA provider-tax provisions will impact at least 9.1 million Medicaid recipients nationally by FY 2034; applied as structural inference to PA's approximately 4% share of national Medicaid, the PA share of the impacted population would be approximately 360,000-400,000; PA-3-specific work-requirement exposure structurally inferable at approximately 30,000-40,000 working-age expansion-population adults.

Geographic variation.

• North/Northwest Philadelphia Core. Structural inference from documented Philadelphia poverty-rate-by-tract patterns and cumulative-burden geography (cross-reference D13 SD2/SD4/SD6): higher Medicaid enrollment concentration; Group VIII expansion-adult concentration; documented BH-PH coordination demand at the CBH carve-out interface; HC-PH MCO selection density likely highest in this sub-area.
• West Philadelphia Core. Anchor-institution medical-provider proximity (Penn, Penn Presbyterian, CHOP, Drexel); high provider density but documented Medicaid acceptance variability at the practice level; older-population concentration in the longtime Black homeowner population (cross-reference D7 SD1) supports CHC dual-eligible concentration.
• Northwest Philadelphia. Internally heterogeneous; higher-income tracts (Mt. Airy, Chestnut Hill, East Falls) carry lower Medicaid enrollment density; lower-income tracts (Germantown, Stenton, West Oak Lane) approximate North Core patterns. Within-sub-area variance is greater than between-sub-area variance.
• South/Southwest Philadelphia. Documented immigrant population concentration interacts with Medicaid eligibility (the 5-year-residency requirement for non-emergency Medicaid plus OBBBA Section 71109 noncitizen restrictions effective October 1, 2026); CHIP-eligible household concentration likely highest here at the 200-319% FPL band.

PA-3-specific Medicaid beneficiary distribution by sub-area, PH-MCO selection share, CHC enrollment, CHIP enrollment, and OBBBA-affected magnitude are not separately published and are flagged for institutional retrieval (CMS Office of Minority Health Geographic Variation Public Use File; CMS Chronic Conditions Data Warehouse; PA DHS Group VIII enrollment data disaggregated by Congressional District).

Gap analysis

Six structural gaps recur across the constituent profiles and the architectural layers above.

G21-SD2-01 — HealthChoices PH-MCO multi-plan provider-network fragmentation in PA-3 (MC60 Both/And substantive-and-structural). Substantive contribution: HealthChoices Physical Health in the Southeast Zone delivers Medicaid coverage to approximately 658,000 Philadelphia County residents across four PH-MCOs (Aetna Better Health, Health Partners Plans, Keystone First, UnitedHealthcare Community Plan). Each PH-MCO provides a separately-contracted provider network across primary care, specialty care, hospital services, and prescription drug delivery. Structural fragmentation: The four-plan architecture means PA-3 Medicaid-enrolled households face PH-MCO selection that determines their entire provider-network access; switching plans (continuous open enrollment is permitted) requires re-verifying provider participation for every existing provider relationship. The behavioral-health carve-out to CBH — county-administered, no choice in plan — operates as a separate authorization track for any behavioral-health services. Representation implication: Federal CMS oversight of 42 C.F.R. Part 438 managed-care contract architecture is direct authority; PA-state-level engagement on network adequacy standards and cross-plan care-coordination requirements is the principal texture-level locus. The 2026 HC-PH Agreement is pending Commonwealth signatures and CMS approval — the final contract architecture trajectory is the active T-flag.

G21-SD2-02 — OBBBA Section 71107 / 71115 / 71117 / 71119 delivery-side compounding flow-through (MC60 Both/And PRIMARY). OBBBA's Medicaid delivery-side flow-through compounds across four mechanisms operative October 2026 through FY 2032: (a) provider-tax freeze October 1, 2026; (b) 6-month redetermination December 2026; (c) work-requirement January 2027; (d) safe-harbor stepdown to 3.5% by FY 2032. Aggregate national impact estimated at 9.1 million Medicaid recipients affected by provider-tax provisions by FY 2034 per CBO; $11.9 billion annual federal Medicaid funding decline across 18 expansion states once caps fully implemented. CMS implementation guidance trajectory: November 18, 2025 CMCS Informational Bulletin; December 8, 2025 Community Engagement Bulletin; early February 2026 Final Rule (statistical-test tightening); CMS Interim Final Rule due June 1, 2026; beneficiary outreach must begin no later than December 31, 2026. Representation implication: Federal House representation has direct advocacy on OBBBA technical-corrections legislation, CMS implementation guidance posture, and the $50 billion Rural Health Transformation Fund allocation ($10 billion annually FY 2026-2030).

G21-SD2-03 — Community HealthChoices re-procurement implementation status (5-plan architecture pending). PA DHS announced selection of five CHC-MCOs in August 2024 — Aetna Better Health, Health Partners Plans, PA Health & Wellness, UPMC for You, Vista Health Plan (AmeriHealth Caritas / Keystone First) — for the next CHC contract cycle. As of late 2025, readiness review and contract execution were pending. CHC enrollment of 383,000+ statewide (June 2024) is the affected population. Representation implication: PA state DHS administrative authority; federal CMS approval at the 1915(b)/(c) waiver renewal layer.

G21-SD2-04 — PA-3-specific Medicaid sub-area-disaggregated data gap. PA-3-specific Medicaid enrollment disaggregated by the four sub-areas (North/Northwest Core; West Philadelphia Core; Northwest; South/Southwest) is not retrievable from public-facing data products. Structural inference from documented Philadelphia poverty-rate-by-tract patterns supports North/Northwest Core and West Philadelphia Core concentration. Representation implication: Federal House representation can engage at federal data-product accessibility (CMS Office of Minority Health Geographic Variation Public Use File; ACS Congressional District estimates).

G21-SD2-05 — Provider-network adequacy and Medicaid participation rate gap in PA-3. Documented national patterns establish Medicaid provider participation rates vary by specialty — primary care has highest participation; behavioral health, specialty surgical care, and dental have systematically lower participation. PA-3-specific participation rates by PH-MCO by specialty are not retrievable at SD2. Cross-reference SD6 for behavioral-health specific architecture. Representation implication: Federal CMS authority on Medicaid network adequacy regulations under 42 C.F.R. Part 438.68.

G21-SD2-06 — HealthChoices BH-PH care-coordination architecture gap at CBH carve-out interface. The HealthChoices behavioral-health carve-out to CBH in Philadelphia County creates structural parallel delivery tracks: PH-MCO administers physical-health authorizations on one track; CBH administers BH/SUD authorizations on a separate track. Cross-plan care coordination is the structural coordination challenge; the burden falls on the beneficiary or care manager rather than on the plans. Cross-reference SD6 for substantive CBH architecture analysis. Representation implication: PA state-level engagement on cross-plan care-coordination requirements; federal CMS engagement on MHPAEA enforcement (cross-reference SD3 MHPAEA commercial implementation and SD6 SUD delivery architecture).

Where this leads

Federal House representation operates at the OBBBA implementation interface (technical-corrections legislation; CMS rulemaking oversight; appropriation for the $50 billion Rural Health Transformation Fund and SHIP / State Medicaid Agency program continuity) and at the federal floor (Medicaid statutory architecture; 42 C.F.R. Part 438 regulatory framework; MHPAEA enforcement). PA-state-level texture engagement is the principal complementary locus. Both layers are required for substantive engagement with the SD2 delivery architecture.

The MC60 Both/And captures the central analytical posture: substantive Medicaid delivery continues operative at federal-floor plus PA-administrative-overlay architecture, AND structural fiscal-pressure mechanisms from OBBBA compound on the institutional side (SD4 Hospital Institutional; SD5 FQHC and Safety-Net) and on the procedural-loss side (D12 SD2 / SD8) and the work-requirement side, producing predictable downstream disruption to delivery continuity through FY 2032.

The next sub-domain — ACA Marketplace and Commercial Insurance Delivery — analyzes the parallel delivery architecture for the population above Medicaid eligibility and below Medicare entitlement. The MC61 candidate Both/And operating at SD3 sits at the IRA Enhanced Premium Tax Credit December 31 2025 expiration plus the 102% Pennie premium increase plus the H.R. 1834 House-passed extension / Senate CARE Act trajectory.