How it works
Why a reminder is not enough
A reminder only works if someone typed the right date. Most billing companies can't say where that date came from. It was often a MAC letter from years ago, or a PECOS screen someone read over the phone.
The date that counts is the one on the CMS revalidation list. That list changes every month, and CMS does not tell you what moved. The list we're using was published 2026-10-01.
Four changes, and nothing else
| What you'll see | What it means | Do you need to decide? |
|---|---|---|
| Newly listed | This enrollment just appeared. You have about seven months. | No |
| Date moved | Same enrollment, and the due date is different from last month. | No |
| Past due | The date is within the last year and still on the list. The list does not say you finished. | We mark old dates “may be stale” |
| Gone | It was on last month's list and it isn't now. Someone finished it, or billing was turned off. | Yes |
Of 2,961,444 enrollments, only 9.2% have a date at all. CMS publishes about six months ahead, mostly for organizations. A physician with no date is the usual result. A date from 2023 is usually a finished revalidation that CMS never cleared, not a crisis today.
What arrives on the 1st
- One email for your list, only the rows that changed, past due first. Rows that disappeared wait for you to say what happened.
- A PDF that names the day CMS published the list it was built from.
- A spreadsheet of every NPI, with the current due date and status.
- If we miss a month, the page shows the last list we do have. We never call that “nothing changed”.
Source: CMS Revalidation Due Date ListPublisher: Centers for Medicare & Medicaid ServicesFile dated 2026-10-01Open the dataset
Reminders vs. what CMS changed · Why two-thirds of NPIs return TBD