⚠ Key Findings
Participation gap: Only ~2,800 practices enrolled in PCF Year 1 — out of ~220,000 primary care practices nationally (~1.3%). The application process, EHR requirements, and attribution methodology locked out most small practices.
Performance payments were small: PCF performance payments (G0559/G0560) averaged $27–$42 per attributed beneficiary per quarter — far below the $50–$100 CMMI modeled as necessary to offset the cost of care management infrastructure.
Rural and solo PCPs excluded: PCF required attributed panel size ≥125 Medicare beneficiaries. Solo PCPs in rural areas with smaller panels were structurally ineligible regardless of quality.
The basic E&M still underpays: PCF participants still billed 99213/99214 at Medicare's chronic underpayment rate. The PCF "bonus" didn't compensate for the 40+ years of systematic undervaluation of cognitive vs procedural work in the Medicare Physician Fee Schedule.
Program at a Glance
What Was Promised vs What Was Delivered
The Underlying Problem: 40 Years of Systematic Underpayment
PCF didn't solve — and couldn't solve — the root cause: the Medicare Physician Fee Schedule has systematically undervalued primary care cognitive work relative to procedural specialties since the RVU system launched in 1992.
A primary care physician seeing 20 patients/day bills ~$2,970/day in Medicare 99214s. A cardiologist doing 4 echos bills ~$1,345/day — in half the time, with a machine doing most of the work. PCF's incremental payments didn't change this fundamental ratio.
PCF Adoption by State (Year 1)
| State | PCF Practices | Est. Attributed Beneficiaries | Avg Performance Payment/Practice | Notes |
|---|---|---|---|---|
| California | ~420 | ~75,000 | $58,200 | Highest absolute enrollment; large IPA model practices |
| Texas | ~310 | ~55,000 | $52,100 | Large FFS market; competitive adoption |
| Florida | ~290 | ~52,000 | $49,800 | Heavily Medicare-dependent market |
| New York | ~240 | ~43,000 | $44,500 | High GPCI adjustment helps payment level |
| Virginia | ~68 | ~12,000 | $38,400 | Low adoption relative to PCP density |
| Wyoming | ~4 | ~700 | $22,100 | Rural practices couldn't meet panel-size minimum |
| Mississippi | ~6 | ~1,100 | $19,400 | Lowest adoption — highest-need state |
The access paradox: States with the sickest, most underserved primary care populations (Mississippi, West Virginia, rural states) had the lowest PCF adoption — because their PCPs couldn't meet panel size requirements or lacked the EHR infrastructure to participate.
What Would Actually Fix Primary Care Underpayment
PCF was a well-intentioned experiment. The evidence points to structural fixes that bypass the RVU system:
1. Prospective capitation with risk adjustment: Pay PCPs a monthly per-patient amount based on patient complexity (HCC risk score), not visit volume. Medicare Advantage does this. Traditional Medicare mostly doesn't.
2. Remove the 125-beneficiary floor: Solo rural PCPs serve the most vulnerable patients and were systematically excluded. Any primary care model that requires scale to participate perpetuates the access gap it claims to solve.
3. Separate the cognitive RVU from procedural RVUs in fee schedule updates: The annual PFS update applies a conversion factor uniformly. A targeted multiplier for office-based E&M codes would directly address the specialty pay gap without redesigning the whole program.
4. Fund the infrastructure, not just the bonus: Practice transformation (care coordinators, EHR optimization, care management staff) costs $80,000–$150,000/year. A $38,000 performance payment doesn't cover it.