How Often Will Medicare Pay for Cognitive Testing?

Medicare Cognitive Testing Frequency at a Glance

Each cognitive service Medicare covers follows its own frequency rule:

• Annual wellness visit cognitive check: once every 12 months. Your first wellness visit cannot fall within 12 months of enrolling in Part B or of your "Welcome to Medicare" visit (Medicare.gov). Cost: $0 when your provider accepts assignment.
• Cognitive assessment and care plan visit (CPT 99483): no annual cap, but a single clinician should not report it more than once every 180 days. Cost: 20% of the Medicare-approved amount after the Part B deductible.
• Neuropsychological or psychological testing: no fixed interval. Each round must be needed for a medical decision, such as making a diagnosis or deciding on treatment. Cost: usually 20% after the deductible.
• Problem-focused office visits: covered whenever a new or changing symptom needs evaluation, with normal Part B cost sharing.

The rest of this guide explains where each rule comes from and how to avoid surprises.

Does Medicare Require a Cognitive Test Every Year?

No. Medicare does not require you to take a cognitive test, every year or at any other interval. What Medicare requires is that clinicians who provide the annual wellness visit include a check for cognitive impairment. The Centers for Medicare & Medicaid Services lists "detect any cognitive impairments the patient may have" as a component of both the first and every subsequent wellness visit, and allows it to be done through direct observation, reports from the patient and family, or a brief cognitive test.

Three practical consequences follow:

• The wellness visit is optional. You are eligible once every 12 months, but nobody is required to schedule it.
• There is no mandated test. Your clinician may use a short structured tool, a conversation, or both.
• You may not notice it happening. In a national survey analysis, about half of beneficiaries reported having an annual wellness visit, but fewer than one-third reported a structured cognitive assessment (Health Affairs, 2020).

If you want to know exactly what that yearly check involves, see our guide to what the annual wellness visit cognitive test involves. This page focuses on the frequency and billing rules around it.

Why This Question Is Confusing for Families

Families often hear two true statements that seem to conflict:

• Medicare includes cognitive assessment in preventive care workflows.
• Additional cognitive testing may still be covered beyond preventive screening.

The confusion comes from treating every cognitive service as if it is the same. It is not. A brief screening conversation, a focused office-based assessment, and a more comprehensive evaluation follow different documentation and billing paths.

That is why asking only "How often does Medicare pay?" is not enough. The better question is: "How often does Medicare pay for this specific service in this specific clinical situation?"

The Difference Between Screening and Diagnostic Follow-Up

A brief cognitive check may happen during routine preventive care, but that does not replace full diagnostic work when symptoms persist or progress. Medicare.gov notes that if your provider thinks you may have cognitive impairment during the wellness visit, Medicare covers a separate visit to do a more thorough review.

This distinction matters because frequency rules differ by service type:

• Preventive cognitive checks follow the 12-month wellness visit cadence.
• Diagnostic cognitive evaluation is driven by documented symptoms or changes.
• Follow-up assessments are tied to treatment planning, safety, or care decisions.

The reverse also holds: diagnostic testing is not a substitute for screening. Medicare contractor policies, such as the one described below, do not cover neuropsychological testing used purely as a screening tool.

What Is a Medicare Cognitive Assessment, and How Often Is It Covered?

When people search for a "Medicare cognitive assessment," they usually mean one of two things: the brief check at the wellness visit, or the dedicated follow-up visit Medicare calls cognitive assessment and care plan services.

Medicare.gov describes this as a separate Part B visit to review cognitive function, help establish or confirm a diagnosis such as dementia, and build a care plan. According to CMS, it typically involves about 60 minutes face to face with the patient and an independent historian, such as a spouse, adult child, or caregiver, whose presence is required to bill the service. It can be provided in an office, at home, in a care facility, or via telehealth.

How often it can be billed:

• The 180-day rule. The Alzheimer's Association summarizes the coding rule: a single physician or other qualified health care professional should not report 99483 more than once every 180 days. Care plan adjustments in between can be billed through other visit or care management codes.
• Same day as the wellness visit. CMS allows 99483 to be billed separately from the wellness visit, including at the same appointment with a modifier added to the claim.
• Not stacked with a routine office visit. CMS lists standard office and home visit codes that cannot be billed on the same day as 99483, so one appointment will not be charged as both.

Unlike the wellness visit, this service carries cost sharing: after the Part B deductible, you pay 20% of the Medicare-approved amount.

How Often Will Medicare Cover Neuropsychological Testing?

Neuropsychological testing is a longer battery of standardized tests used to clarify a diagnosis or measure change. Medicare does not publish a national "once every X months" limit for it. Instead, coverage is decided by medical necessity under local coverage policies written by regional Medicare contractors.

One such policy, the Psychological and Neuropsychological Testing LCD used by Wisconsin Physicians Service, illustrates how these policies work:

• Testing is considered medically necessary when there are mild or questionable deficits on standard mental status testing or clinical interview and detailed testing is needed to confirm them or distinguish them from normal aging.
• Testing is not covered when it is repeated but not required for medical decision-making, meaning making a diagnosis or deciding whether to start or continue a therapy.
• Testing is not covered when used as a screening test, and screening for Alzheimer's disease on its own is not a covered purpose.

The practical takeaway: a second evaluation six months after the first can be covered if something has changed and the results will guide a decision. The same test repeated on a routine schedule, with no new question to answer, is likely to be denied. For a sense of what these evaluations cost, see what a neuropsychological evaluation costs.

What Usually Supports a Covered Repeat Evaluation

Repeat cognitive testing is generally easier to justify when clinical records clearly show why new testing is needed. Common patterns include:

• Noticeable functional decline compared with prior baseline.
• New safety concerns, such as medication management errors.
• Meaningful changes in daily living or caregiver observations.
• Need to guide major care decisions with updated data.
• Ongoing monitoring after prior abnormal findings.

This is not a guarantee of coverage. It is a framework for what plans and clinical teams often review when determining whether repeated services are appropriate.

What You Pay Each Time

Cost depends on the service, not on how many times you have been tested:

• Wellness visit cognitive check: $0 when your provider accepts assignment, and the Part B deductible does not apply. If other services are added at the same visit, those can be billed separately.
• Cognitive assessment and care plan visit, diagnostic testing, and office visits: in 2026, you pay the $283 Part B deductible once per year, then usually 20% of the Medicare-approved amount for each covered service (Medicare.gov).

A worked example, using hypothetical round numbers: if you have already met your deductible and a covered follow-up service has a Medicare-approved amount of $300, your 20% coinsurance would be $60. If it is your first Part B service of the year, you would pay the $283 deductible first and 20% of the remaining $17. Your actual cost also depends on any other insurance you have, whether your clinician accepts assignment, and where you are seen (Medicare.gov).

Original Medicare vs Medicare Advantage Frequency Experience

Both Original Medicare and Medicare Advantage include Medicare-covered benefits, but the day-to-day experience can feel different.

According to Medicare.gov, Medicare Advantage plans must cover all medically necessary services that Original Medicare covers, but you may need to use in-network providers, get a referral to see a specialist, or get prior authorization before the plan covers certain services. Original Medicare generally does not require prior authorization.

That means the frequency rules above are the floor for both. What changes in Medicare Advantage is the process, which can affect how quickly a repeat evaluation happens. Our comparison of how Medicare Advantage and Original Medicare differ on cognitive testing covers those mechanics, and Medicare coverage for cognitive testing gives the broader foundation.

A Practical Pre-Visit Frequency Check Script

Before scheduling, ask the clinic which service or CPT code they plan to bill, then call your plan with targeted questions. A short script saves time:

"I'm calling to confirm coverage frequency for cognitive testing my clinician recommended. Can you review frequency limits, referral requirements, prior authorization rules, and expected cost-sharing for this service?"

Then ask:

1. Are there frequency limits for this specific service category?
2. Does this provider and location count as in network?
3. Is a referral required before scheduling?
4. Is prior authorization required for initial or repeat testing?
5. What deductible, copay, or coinsurance applies?
6. Can you provide a call reference number for my records?

Keep the reference number, date, and representative name. If billing issues appear later, those details help resolve disputes faster.

What If Your Provider Says Medicare May Not Pay?

If you have Original Medicare and your provider thinks a repeat test may not be covered, they may give you an Advance Beneficiary Notice of Noncoverage (ABN). Medicare.gov explains that the notice lists the service, an estimated cost, and why Medicare may not pay, and asks you to choose an option:

• Receive the service and have a claim sent to Medicare. You may be asked to pay now, but you keep the right to appeal, and you are refunded if Medicare pays.
• Receive the service without a claim being sent, which means you pay and cannot appeal.
• Decline the service.

An ABN is not an official denial. If a claim is denied, you can file an appeal; Medicare Advantage plans must tell you in writing how to appeal. Clinician notes explaining why the repeat evaluation was needed are usually the most useful evidence, and your State Health Insurance Assistance Program offers free help.

Common Mistakes That Lead to Coverage Surprises

Coverage surprises often come from process gaps, not bad intent. Frequent mistakes include:

• Assuming "covered" means no patient cost.
• Assuming all cognitive services share the same frequency rules.
• Booking the next wellness visit before you are eligible for it. Eligibility is not always an exact 365 days, so ask your provider's billing office or Medicare to confirm your next eligible date.
• Skipping verification because a clinic says it "accepts Medicare."
• Not confirming whether repeat testing needs prior authorization.
• Forgetting to document plan-call details.

A little prep before each step can prevent weeks of follow-up calls later.

When to Request Clarification or Escalation

If answers are vague, inconsistent, or delayed, escalate early. Ask for:

• A benefits specialist or supervisor review.
• Written clarification through member portal messaging, if available.
• Coordination between provider billing staff and plan support.

Escalation is especially important when the care team recommends timely follow-up and plan uncertainty could delay needed evaluation. Our guide on how to get cognitive testing covered by insurance covers documentation that strengthens a request.

How to Decide Timing for Follow-Up Testing

Families can use a simple decision framework:

• Are symptoms stable, improved, or worsening?
• Has function changed at home, work, or social settings?
• Did the prior result suggest near-term follow-up?
• Is the next decision point (driving, medications, support level) significant?

Clinical urgency should drive timing first, then coverage details should be clarified quickly so care is not stalled. If you are uncertain about when reassessment is appropriate, review when to get tested and discuss specifics with your clinician.

Tracking Results Over Time Without Guesswork

The value of repeat testing is trend clarity, not one isolated score. Families can improve trend tracking by:

• Saving prior report dates and summaries.
• Bringing concrete examples of day-to-day change.
• Comparing function over months, not just weeks.
• Asking the clinician what interval is clinically reasonable.

Once results are available, it helps to revisit how to understand cognitive test results so follow-up decisions stay grounded in context.

Building a Simple Family Tracking Routine

A lightweight tracking routine can reduce repeat confusion every time testing is discussed. Keep one shared note with prior test dates, the service or code billed, key clinician recommendations, plan call reference numbers, and any authorization details. Before each visit, update that note with new symptom examples and daily-function changes. This gives clinicians clearer context and helps families ask focused questions about whether repeat testing is medically and administratively justified.

Taking the Next Step

To plan your next appointment with fewer surprises, review does Medicare cover cognitive testing and use that checklist before you schedule.

If you'd like to supplement clinical visits with at-home tracking, see how Orena works.