Case Study: Group Practice Expansion Credentialing
Group Practice Credentialing Case Study: 5 Physicians, 8 Payers, 94 Days
This case study documents how ProEnrollment credentialed 5 new physicians at a 12-provider multi-specialty group practice with all 8 existing payers: Aetna, UHC, BCBS Texas, Cigna, Humana, Medicare PECOS, Texas Medicaid, and Humana Medicare Advantage. All 5 physicians credentialed with all 8 payers within 94 days. First-time approval on all 40 individual applications. $420,000 additional annual revenue from new physician panel capacity.
Simultaneous Multi-Provider Credentialing
ProEnrollment built 5 CAQH profiles simultaneously and filed all CMS-855R reassignment forms with the group's Medicare enrollment on the same day as individual CMS-855I submissions. All 8 payer applications submitted on day 11. Zero disruption to existing 12-physician billing during the 94-day process. Medicare PECOS (individual + reassignment): 72 days average. Commercial payers: 82–94 days. See: credentialing services | Medicare PECOS enrollment.
The Mechanics of Zero-Disruption Onboarding
The risk in adding five physicians to a billing group is breaking what works: existing provider enrollments, group contracts, and claims flow must stay untouched while new 855Rs and payer linkages process. Our approach filed all five CMS-855I applications and their 855R reassignments against the group's existing 855B on day 11 — same-day submission so Medicare processed them as one coherent batch — while commercial applications referenced the group's existing contracts for roster additions rather than new agreements, the faster path at every major payer.
What Group Administrators Should Take From This
Roster additions are a different (faster) workflow than new contracts — but only if requested correctly; new-contract applications for existing-group physicians waste 30–60 days. Start credentialing at signed offer, not start date: these five physicians' 94-day timeline began the week contracts were signed, so effective dates landed within weeks of their clinical start. The $420,000 annual revenue figure reflects panel capacity that opened on schedule instead of a quarter late. Group credentialing services | Medicare group enrollment | plan your group's onboarding.