Topic cluster
Medicare applications
6 focused guides in this cluster. Use the individual articles for the exact transaction rather than treating the entire payer/onboarding workflow as one status.

01Medicare applications
CMS-855I: Individual Medicare Enrollment Without Mixing in the Group Transaction
Use CMS-855I or PECOS to build the individual Medicare practitioner record without confusing personal enrollment, group reassignment, organization identity, and practice locations.
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02Medicare applications
CMS-855B for a New Group Practice: Build the Organization Record First
How a new clinic or group practice should build the organization Medicare record with CMS-855B or PECOS, including legal identity, ownership, locations, banking, and 2026 form changes.
READ GUIDE ↗03Medicare applications
Medicare Reassignment After CMS-855R: What Changed and How to Track It
CMS merged the paper CMS-855R reassignment application into CMS-855I. Update old Medicare SOPs and track practitioner-to-group relationships separately from individual and group enrollment.
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04Medicare applications
Medicare Enrollment Application Fee in 2026: Who Pays and When
The Medicare enrollment application fee is $750 in calendar year 2026 for institutional providers and suppliers subject to the fee. Physicians, non-physician practitioners, and their organizations are generally exempt.
READ GUIDE ↗05Medicare applications
CMS-855O: Enrolling Solely to Order or Certify for Medicare
CMS-855O is for eligible physicians and practitioners enrolling in Medicare solely to order or certify covered items and services, not to submit claims for their own furnished services.
READ GUIDE ↗06Medicare applications
Medicare Opt-Out and Ordering/Certifying: Keep the Status Straight
Medicare opt-out status and ordering/certifying recognition can coexist in defined circumstances, but the practice must track affidavits, renewal periods, NPI identity, and the clinician’s non-billing role carefully.
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