MIPS Eligibility Checks: Why Your October Roster Needs a Second Look
Your roster may look a little different by month-end.
Think about it. Since January, your practice may have hired a physician, lost a nurse practitioner, added a location, or changed a billing arrangement. Each change may have reached credentialing, payroll, and your EHR at a different time. Whether it reached your MIPS reporting team is another question.
I would not wait until submission season to find out.
October is a useful checkpoint for 2026 MIPS eligibility, even though CMS schedules final eligibility determinations for December. The second claims-review segment has ended, and your team has time to investigate differences between its clinician list, billing records, and reporting setup. A careful review now can help you prepare for the final determination without treating preliminary information as settled.
1. Understand What October Means for MIPS Eligibility
October is a roster-reconciliation month. CMS’s published schedule places final 2026 MIPS eligibility in December, not October.
CMS evaluates Medicare Part B claims and enrollment information through two review segments. For the 2026 performance year, the schedule is:
| Review | Dates of service CMS examines | Eligibility publication |
| Segment 1 | October 1, 2024–September 30, 2025 | Initial eligibility: December 2025 |
| Segment 2 | October 1, 2025–September 30, 2026 | Final eligibility: December 2026 |
CMS reconciles the two segments to establish final eligibility, subject to specified APM-related changes. QPP
Your October task is to check the information currently available, identify changes since the initial determination, and prepare a list of questions for the December update.
Keep the performance year visible in every record. Feedback about a prior-year MIPS score does not establish your current-year eligibility. Both deserve attention, but they answer different questions.
2. Track the Billing Relationship, Not Just the Clinician’s Name
A clinician’s name on your staff directory does not tell you everything you need to know about MIPS participation.
CMS evaluates the relationship between a clinician’s National Provider Identifier, or NPI, and the Taxpayer Identification Number, or TIN, associated with Medicare billing. A clinician billing through multiple TINs can have multiple eligibility evaluations.
That makes the TIN/NPI combination a useful starting point for your internal tracker.
Suppose a physician works at two locations. If both operate under one TIN, that arrangement differs from working across two separate TINs. Your reporting team needs to understand the actual billing structure.
I recommend one tracker row per relevant TIN/NPI combination, with the clinician’s name alongside it. Record locations separately so you can investigate missing feeds without confusing a location change with a new billing relationship.
A tidy roster can still leave out the detail that determines which reporting obligation your team must evaluate.
3. Review What Changed Since Your Initial Eligibility Check
Pull your current clinician list and compare it with the version used when your practice first checked 2026 participation.
Look for additions, departures, changes in Medicare billing relationships, enrollment updates, and APM participation changes. Then establish the effective dates using the appropriate records.
A useful comparison brings together:
Credentialing and enrollment records.
Medicare billing information.
EHR and registry clinician lists.
Your internal MIPS reporting plan.
Expect differences. Each system serves a different purpose, and updates do not always happen together.
The important question is whether your team can explain each difference. If a clinician appears in the registry but no longer works at the practice, investigate the reporting scope before removing the record. If a new hire appears in payroll but not in reporting, determine whether the setup is complete.
A mismatch is a prompt for review. It is not, by itself, proof of a reporting error.
4. Treat New Hires and Departures as Reporting Events
A staffing change should trigger a reporting review, not merely an update to the office directory.
Timing matters. CMS treats clinicians differently based on when they begin billing under a practice’s TIN: during the second determination segment or afterward. Its guidance also explains that group reporting can affect the outcome for clinicians joining after that segment.
Another distinction is worth preserving: new to your practice is not the same as newly enrolled in Medicare. CMS identifies first Medicare enrollment on or after January 1, 2026, as an exclusion from MIPS for this performance year.
For every arrival or departure, record the employment date, billing-effective date, and reporting question separately.
Do not automatically delete a departing clinician’s historical data from your reporting workflow. Confirm the applicable scope and requirements first. Likewise, do not assume a new employee inherits the participation status of the person they replaced.
5. Read Individual and Group Eligibility Separately
One of the easiest ways to misread a participation result is to stop at the first reassuring sentence.
A clinician may not be required to report individually because of the low-volume threshold, while group reporting creates a different participation outcome. CMS distinguishes individual eligibility from eligibility associated with a practice’s group submission. qpp.cms.gov
Check both views and compare them with your intended reporting arrangement.
CMS’s low-volume criteria involve Medicare Part B allowed charges, patients, and covered professional services. The thresholds are more than $90,000 in allowed charges, more than 200 patients, and more than 200 covered professional services, with other eligibility factors and determination-period rules also applying. Use those figures to understand the framework. Do not substitute a quick calculation from a billing dashboard for a complete eligibility review.
If your team writes “exempt” in its tracker, include the reason, participation level, performance year, and date checked. Otherwise, that single word can travel through the organization stripped of the context that made it accurate.
6. Investigate the Differences Before Changing Your Reporting Plan
Consider this illustrative scenario, not a documented client case.
A practice’s January tracker shows its original clinicians. By October, one has left, another has joined, and a third is billing through an additional TIN. Credentialing has updated its records. The registry still displays the original list. The billing team has a current list, but nobody has compared it with the reporting plan.
The problem is not necessarily that someone made a mistake. The problem is that the practice has several versions of the roster and no documented explanation connecting them.
I would assign an owner to each difference and ask:
What changed, and when?
Which record supports the change?
What does the current QPP information show?
What must we confirm before changing reporting?
Keep the answer attached to the clinician-billing relationship. “We discussed it with the vendor” is useful only when you record the decision and supporting explanation.
7. Build a Tracker That Preserves the Reason for Each Decision
You do not need a complicated platform to manage this review. You need a record that another qualified person can follow.
I recommend these fields:
| Field | What to record |
| Clinician and identifiers | Name, NPI, and relevant TIN |
| Effective dates | Arrival, departure, and billing changes |
| Current participation information | Individual and group results, with the performance year |
| Other reporting factors | Applicable APM information and special statuses |
| Evidence | Source record and date reviewed |
| Reporting action | Next step, responsible person, and due date |
| Recheck | What needs confirmation when CMS updates eligibility |
What needs confirmation when CMS updates eligibility
Keep an unresolved issue visible rather than guessing at an answer.
For example: “Billing under the new TIN began in August; reporting lead to review the current participation result and confirm the reporting approach.”
That entry is more useful than “new provider added.”
The tracker should preserve the reasoning behind your MIPS eligibility checks. It should also make clear which information remains preliminary.
8. Give Billing, Credentialing, and Reporting a Shared Process
Roster changes cross departmental boundaries. Your review process should do the same.
Ask credentialing to identify enrollment and reassignment changes. Ask billing to confirm the relationships appearing in Medicare claims. Ask your reporting lead to compare those findings with the registry setup and participation plan.
Your RCM partner can be an important source of information, but clarify what its agreement covers. Identifying a billing change and deciding how to address MIPS participation may require different expertise.
Then name one person to coordinate the review.
That person doesn't need to answer every regulatory question. They need to make sure each question reaches the right reviewer and returns with a documented answer.
I would also establish a trigger for future changes: a new hire, departure, TIN change, or enrollment update should notify the reporting lead. A December cleanup is easier when you've already investigated October's changes.
9. Check Now, Then Recheck When CMS Publishes Final Eligibility
Open the QPP Participation Status Tool, select the correct performance year, and review each relevant practice association.
Record what the tool currently shows and when you checked it. Compare the result with your tracker, and investigate any unexplained difference. If information appears inconsistent, determine whether you need assistance from enrollment staff, your reporting specialist, or the QPP Service Center.
Then schedule a second review for the final eligibility update.
Do not overwrite the earlier entry without preserving what changed. Your team should be able to explain why its reporting plan changed between October and December.
Remember that clinician eligibility and patient inclusion in a quality measure are separate questions. A roster review helps establish the reporting framework; it does not replace the measure specifications that govern your patient data.
Give Your October Roster a Second Look
The roster you started with may no longer reflect the practice you operate today. That is normal. Leaving those differences unexplained creates avoidable uncertainty.
October gives you a practical opportunity to compare records, document billing changes, clarify individual and group participation, and prepare for CMS’s December eligibility update. Begin with the clinicians whose employment, enrollment, or billing relationships changed. Assign the remaining questions and keep the evidence with the decision.
Check your participation status, then call Chirpy Bird at (888) 647-7247. We can help your team review eligibility questions, reconcile its reporting roster, and determine the next steps for your MIPS strategy.
For practical guidance and available support, explore Chirpy Bird’s MIPS resources and reporting services.
