Medicare does not set a limit on the number of physical therapy sessions it will cover per year. There is no cap on visits or total dollars, as long as each session is medically necessary and ordered by a doctor or other qualified provider. What Medicare does have is a financial threshold that triggers extra documentation requirements once your therapy charges reach a certain amount in a calendar year.
No Session Cap, but a Dollar Threshold
Under Original Medicare (Part B), there is no maximum number of physical therapy visits you can receive. The old hard caps on therapy spending were permanently removed in 2018. What replaced them is a threshold system tied to how much your therapy costs over the course of a calendar year.
For 2026, that threshold is $2,480 for physical therapy and speech-language pathology services combined. This is not a spending limit. It’s the point at which your physical therapist must add extra documentation to each claim confirming that continued treatment is medically necessary. Below that amount, claims go through normally. Above it, every claim needs that confirmation or Medicare will deny it. The threshold amount is adjusted each year.
In practical terms, depending on what your therapist charges and where you live, $2,480 in Medicare-approved charges might translate to roughly 20 to 30 sessions. But if you need more, and your therapist documents why, Medicare will keep paying.
What “Medically Necessary” Actually Means
The real limit on Medicare-covered physical therapy isn’t a number. It’s whether your treatment qualifies as medically necessary. Medicare defines this more specifically than you might expect, and understanding the criteria helps explain why some people get cut off while others don’t.
Your therapy must be specific and effective treatment for your condition, not general wellness or fitness. The frequency, duration, and type of treatment all need to be reasonable for your diagnosis. Most importantly, your medical record has to show that you are making meaningful progress, or that skilled therapy is needed to maintain your current function or prevent decline. Your therapist documents your condition before, during, and after treatment, using objective measures to demonstrate that the sessions are producing real, sustainable improvement.
Medicare also requires that the therapy be complex enough to need a trained therapist’s hands-on involvement. If you’ve reached the point where you’re independently working through an exercise program and don’t need a therapist guiding or adjusting your care, those sessions no longer qualify. Similarly, repetitive exercises that don’t require ongoing clinical judgment won’t be covered.
Maintenance Therapy Is Covered Too
One common misconception is that Medicare only pays for therapy when you’re actively improving. That changed several years ago. Medicare now covers maintenance therapy, which is designed to keep you at your current level of function, slow a decline, or ensure your safety at home. The key requirement is the same: the work must need a therapist’s skill level. Once a therapist has taught you or a caregiver how to do the maintenance exercises independently, Medicare stops covering those sessions because a trained clinician is no longer required.
What You Pay Out of Pocket
After you meet the annual Part B deductible, you pay 20% of the Medicare-approved amount for each physical therapy session. Medicare covers the other 80%. If you have a Medigap (supplemental) policy, it may pick up some or all of that 20% coinsurance. Without supplemental coverage, costs add up over a long course of treatment, so it’s worth checking what your plan covers before you start.
Medicare Advantage Plans Work Differently
Everything above applies to Original Medicare (Parts A and B). If you’re enrolled in a Medicare Advantage plan (Part C), your coverage rules can differ significantly. Medicare Advantage plans are required to cover at least what Original Medicare covers, but they can add their own requirements on top of that. Many plans require prior authorization before starting physical therapy or impose visit limits per condition or per year. Copay amounts also vary by plan.
If you have a Medicare Advantage plan, check your plan’s Evidence of Coverage document or call the number on your member card before scheduling therapy. The plan may approve an initial block of visits (say, 12 or 20) and require your therapist to request authorization for more. Getting this sorted out before treatment starts prevents surprise denials later.
How to Protect Your Coverage
The most common reason Medicare denies physical therapy claims isn’t that you’ve hit some hidden limit. It’s insufficient documentation. A few things help keep your coverage intact:
- Get a referral or prescription. A doctor, nurse practitioner, or physician assistant must certify that you need physical therapy.
- Track your progress. Your therapist should be documenting measurable improvements or explaining why skilled maintenance care is still needed. If you’re not sure what’s being recorded, ask.
- Stay engaged in treatment. If you’re canceling frequently or not following your home exercise program, it becomes harder for your therapist to demonstrate that ongoing sessions are producing results.
- Ask about the threshold. Your therapist’s billing office can tell you where you stand relative to the annual threshold. Once you cross it, the documentation bar goes up, so your therapist needs to be prepared.
If a claim is denied, you have the right to appeal. Medicare’s appeals process has multiple levels, and many denials are overturned when additional documentation is submitted.