Glossary
Revalidation, deactivation, reactivation, TBD
Twelve terms. Each one has a source. If a sentence has no source, it does not belong here.
- Revalidation
- CMS requires a full enrollment update on a cycle: 5 years, or 3 for DMEPOS.
- Source: 42 CFR 424.515
- Deactivation
- Billing privileges stop. Claims deny. It is not the same word as revocation.
- Source: 42 CFR 424.540(a)(3)
- Revocation
- CMS ends the enrollment for cause. A deactivated billing privilege can be reactivated; a revocation is a different action.
- Source: 42 CFR 424.535
- Suspension
- A payment hold. People mix it up with deactivation. This file does not tell you which one happened.
- Source: CMS provider enrollment glossary
- TBD
- The enrollment is in the public file and the due date is not. CMS publishes about six months ahead.
- Source: CMS Revalidation Due Date List, measured 2026-10-25
- Enrollment ID
- The PECOS enrollment. One enrollment can include more than one NPI, so a row is not always a separate customer.
- Source: CMS revalidation list
- NPI
- The 10-digit national provider identifier. It is not the enrollment.
- Source: NPPES
- MAC
- The Medicare Administrative Contractor that mails the notice and receives the application.
- Source: CMS revalidation page
- PECOS
- The enrollment system. This product never asks you to sign into it.
- Source: CMS
- Reactivation
- Effective the day CMS receives a complete application. Not retroactive. Services in the gap are not billable to the patient.
- Source: 42 CFR 424.540
- CMS-855
- The enrollment form family. 855A institutional, 855B groups and certain suppliers, 855I individuals, 855S DMEPOS, 855O order-and-refer, 855R reassignment.
- Source: CMS forms
- Monthly check
- Your NPIs compared with this month's CMS list and last month's. You only hear about four changes: new, date moved, past due, or gone.
- Source: Enrollment Watch