A four-physician pediatric group we work with lost a partner to a hospital system last spring. She gave 90 days' notice, finished her last clinic on a Friday, and the office manager did what seemed responsible on Monday morning: she logged into PECOS and terminated the physician's reassignment to the group, effective that day. Within three weeks, Medicaid managed care and two commercial plans started denying claims for visits the physician had performed in her final month. The termination had been reported to those payers too, and their systems read it as "this physician was not part of your group on those dates."
It took four months to reopen the claims. Meanwhile the physician's name stayed on one plan's directory because nobody had sent that plan its required notice, and roughly 300 members were still attributed to her panel for quality reporting. The practice treated a departure as a single event when it is really a dozen deadlines on different clocks.
This provider offboarding checklist is the one we use when a physician, nurse practitioner or physician assistant leaves a practice we support.
Key takeaways
- Medicare requires physicians and groups to report a change in practice location within 30 days under 42 CFR 424.516(d), and the National Plan and Provider Enumeration System (NPPES) requires NPI record updates within 30 days. Both clocks start on the last day worked, not when you get around to it.
- The reassignment termination date must equal the provider's last date of service. An earlier date denies legitimate claims; a later date leaves the group liable for services it did not supervise.
- Commercial and Medicaid managed care contracts usually require written notice 30 to 90 days before a provider leaves. Missing that clause is the "30-day trap," because the payer's clock runs before departure, not after.
- Claims for dates of service before departure are still the group's to bill and collect, and Medicare allows a substitute physician to bill under the departed provider's NPI for up to 60 continuous days while a replacement is recruited.
- Start the checklist the day notice is given. Most of the damage we see comes from starting on the last day.
Start the provider offboarding checklist on the day notice is given
The moment a provider gives notice, open a single tracking sheet with three columns: the task, the party it involves, and the deadline calculated from the last day of service. The last day of service is the anchor for everything. Employment contracts commonly require 60 to 180 days' notice, which sounds like plenty of time. It is not, once you count the payers.
The first thing to pull is the provider's enrollment inventory: every payer the provider is enrolled with, the provider ID, the effective date, and whether the enrollment is a group reassignment or an individual contract. Reassignment, for readers who do not live in this world, is the arrangement where a provider assigns the right to receive payment to the group, so the group bills under its tax ID with the provider's NPI as the rendering provider.
Then read every payer contract for its termination and notice clause, which hides in the provider agreement, a network addendum or the provider manual incorporated by reference. Most say some version of "the group shall notify the plan in writing at least 30 days prior to the termination of any participating provider." Some say 60 or 90. Write each one on the sheet with the date it must be sent.
Medicare: what to terminate, when, and on what form
For a provider leaving a group but continuing to practice elsewhere, the group terminates the reassignment. Medicare accepts this through PECOS or on paper using the CMS-855R (or the reassignment section of the current CMS-855I). Either the provider or the group's authorized official can sign a reassignment termination, so the group is not stuck if the provider stops answering, but we still ask the provider to sign an acknowledgment of the last date of service before they go; it prevents arguments about the effective date later.
A provider retiring from Medicare entirely files a voluntary termination of the individual enrollment on the CMS-855I; that is the provider's job, but the group still terminates its reassignment.
The date matters more than the form. Set the reassignment termination effective date to the last date of service. Claims for earlier dates process normally after the termination is on file, because Medicare pays based on whether the reassignment was active on the date of service. A termination dated before the last visit produces denials for those visits. In our experience the denial arrives as CO-B7, "this provider was not certified or eligible to be paid for this procedure or service on this date of service," and it is correctable only by asking the Medicare Administrative Contractor to fix the date.
Reporting deadlines are set by 42 CFR 424.516(d): physicians, non-physician practitioners and their organizations must report a change of ownership, an adverse legal action or a change in practice location within 30 days, and all other changes within 90 days. A provider leaving means their practice location has changed, and the safe reading is that both the group and the provider are inside the 30-day window. Separately, NPPES requires NPI record changes, such as the practice address, within 30 days. The departing provider owns that update, and a stale NPPES address confuses every payer that pulls from it.
Commercial payers, Medicaid and directories: the notice trap
Here is where the 30-day trap lives. Medicare's 30 days run after the change. Most commercial and Medicaid managed care contracts want notice before the change. If a provider gives 90 days' notice and the office waits until the last week to think about payers, a contract that required 60 days' prior notice has already been breached. Some plans then hold claims for the transition period; some keep attributing members to a panel that no longer exists; a few raise repeated late notices at contract renewal.
Send each payer a dated termination letter on practice letterhead, signed by an authorized official, stating the provider's name, NPI, the practice tax ID, the last date of service and a request to remove the provider from the group's roster effective that date. Keep the submission receipt, ask each payer to confirm the roster change in writing, and check the online directory two weeks later. Under the provider directory provisions of the No Surprises Act, in effect since January 1, 2022, providers are expected to notify plans when their directory information changes, and plans must verify directory data every 90 days. A departed physician still listed in a directory is a compliance problem for both sides.
Medicaid is state by state: the fee-for-service program has its own affiliation form and each managed care organization has a roster process on top of it. A notice to one does not reach the other.
Two more updates get forgotten: removing the provider from the group's CAQH ProView roster, and sending a signed resignation letter to any hospital where the group manages the provider's privileges.
Claims, remits and the money that is still owed
Everything the provider did before the last day is still the group's revenue. Claims keep going out under the group's tax ID with the provider's NPI as rendering provider, and payments keep arriving on the group's remits, as long as the reassignment end date is right. What stops is the follow-up. Denials and appeals on a departed provider's claims fall to the bottom of the work queue because the person is not around to ask. Assign that accounts receivable to a named biller with a weekly review until it is cleared. Our denial management work regularly finds appealable denials that sat for months only because the provider's name was no longer on anyone's list.
First of two common questions: can someone else see the departed provider's patients and bill for it? Medicare's fee-for-time compensation rules, in the Medicare Claims Processing Manual, Chapter 1, Section 30.2.11, allow a group to bill a substitute physician under the departed physician's NPI with modifier Q6 for up to 60 continuous days while it recruits a permanent replacement. After 60 days the substitute must be enrolled and reassigned. Not every commercial payer recognizes this, so check first.
Second, what about open encounters? Run a report of unsigned notes and unbilled encounters two weeks before the last day and get them closed. A physician who has left cannot sign notes in an EHR they no longer have access to, and unsigned notes cannot be billed. This is the largest source of lost revenue in the departures we audit.
A worked timeline
Suppose Dr. Alvarez gives notice on March 2, 2026 with a last clinic day of May 29, 2026. The practice's payer contracts require 30 days' prior notice for five plans, 60 days for two, and 90 days for one Medicaid managed care plan.
| Date | Task | Who acts | Basis |
|---|---|---|---|
| March 2 to 6 | Open the tracking sheet, pull the enrollment inventory, read all notice clauses | Credentialing lead | Internal |
| By March 2 | Written notice to the plan requiring 90 days | Authorized official | Contract, 90 days before May 29 |
| By March 30 | Written notice to the two plans requiring 60 days | Authorized official | Contract |
| By April 29 | Written notice to the five plans requiring 30 days | Authorized official | Contract |
| May 15 | Unsigned note and unbilled encounter report; provider signs and closes all open work | Provider, billing | Internal |
| May 29 | Last date of service; provider signs CMS-855R or PECOS reassignment termination | Provider, authorized official | Reassignment end date = last DOS |
| By June 28 | Submit Medicare reassignment termination; provider updates NPPES | Group, provider | 42 CFR 424.516(d), NPPES 30-day rule |
| June 12 and July 10 | Verify roster removal and directory listings for every payer | Credentialing lead | Contract, No Surprises Act directory rules |
| Weekly until cleared | Work Dr. Alvarez's denials and open A/R | Named biller | Internal |
Notice that the 90-day plan's deadline is the day notice is given. Wait a week and the practice is already late with that plan. This is why the checklist starts on the day of notice.
Questions we hear
Should we terminate the Medicare reassignment before the last day so it is done on time?
No. File it on or after the last day of service, with the effective date set to that last day, inside the 30-day window. Filing early with an early effective date is the most common cause of denied final-month claims.
The provider is going to a competitor and won't cooperate with signatures. What then?
The group's authorized official can submit the reassignment termination alone through PECOS; the provider's signature is needed when the provider initiates it. Document your attempts to obtain cooperation, send the payer notices anyway, and make sure the provider's access to your EHR, portals and clearinghouse ends on the last day. If there is a dispute about the notice period or restrictive covenants, that is a matter for counsel, not the billing office.
Do we need to tell patients?
Operationally, yes. Patients attributed to the departing provider should be offered appointments with another provider, and many state medical boards have expectations about patient notice and continuity of care, particularly for a retiring physician. Check your state's rules and your malpractice carrier's guidance. Payers with attribution-based programs will also want to know where the panel is moving; our credentialing and enrollment team handles that roster work as part of the same departure.
What to do this week
- Build or update the practice's enrollment grid: every provider, every payer, ID numbers, effective dates and whether the enrollment is a reassignment or an individual contract.
- Pull the notice clause from each payer contract and record the required lead time on the grid, so the deadlines are known before the next resignation letter arrives.
- Write a template termination letter with fields for name, NPI, tax ID and last date of service, and a template roster-change confirmation request.
- Add "unsigned notes and unbilled encounters by provider" to the reports your billing team can run on demand, and test it.
- Confirm who in the practice is the Medicare authorized official with PECOS access, and that at least one backup exists.
- If a provider has already left and their claims are denying, list the denial codes and dates before you call the payer; a wrong reassignment end date is the first thing to check.
