What Medicare Leaves You Owing for Physical Therapy

How does Original Medicare pay for outpatient PT?

Original Medicare covers outpatient physical therapy under Part B, which means it works like the rest of Part B: once you have met your annual Part B deductible, Medicare pays 80% of the Medicare-approved amount for each covered service, and you owe the remaining 20% coinsurance 1Ref 1Centers for Medicare & Medicaid Services (2024).What does Medicare cost?.The general structure of Medicare cost-sharing — premiums, deductibles, and the 80/20 coinsurance split for Part B services.. For 2026, CMS has published the specific Part B deductible and premium figures that apply that year, and it is worth checking the current published numbers directly rather than relying on a prior year's figures, since both are set annually 2Ref 2Centers for Medicare & Medicaid Services (2025).2026 Medicare Parts A & B Premiums and Deductibles.That CMS publishes specific, year-specific Part A and B premium and deductible dollar amounts, used to direct readers to the current official figures rather than stating a number here.. There is no dollar cap built into the 20% coinsurance itself under Original Medicare — a longer course of PT after, say, a rotator cuff or knee injury means more visits at 20% each, not a fixed total.

Part B deductible the amount you pay out of pocket for covered Part B services, including outpatient PT, before Medicare's 80% coinsurance split begins for the year.

What does the 20% coinsurance actually mean in dollars?

It means your share moves with the price of the visit, not a flat number Medicare publishes for every therapy session everywhere. CMS's Procedure Price Lookup tool shows the national-average Medicare payment and the average beneficiary copayment for outpatient procedures, comparing a hospital outpatient department against an ambulatory surgical center setting where applicable — and the displayed figures are national averages that exclude physician fees, so your actual bill will vary by facility and region 3Ref 3Centers for Medicare & Medicaid Services (2024).Procedure Price Lookup for Outpatient Services.How Medicare outpatient cost estimates are constructed, including that displayed figures are national averages excluding physician fees and vary by facility setting.. The same underlying pattern that applies to any metro's cash pricing applies here: where you are treated changes the Medicare-approved amount, and 20% of a larger approved amount is a larger coinsurance bill.

Does Medicare limit how many PT visits you can have?

Original Medicare itself does not cap the number of physical therapy visits by policy the way many commercial plans do — coverage continues as long as the care remains medically necessary and properly documented, though above a certain annual dollar threshold in combined outpatient therapy spending, additional documentation requirements kick in rather than a hard stop. This is a separate question from cost: even unlimited coverage still means 20% coinsurance on every visit, so a medically necessary long course of care can still add up meaningfully even without ever hitting a visit cap.

How do Medigap or a Medicare Advantage plan change this math?

Substantially, and in opposite directions depending on which one you have. A Medigap, or Medicare Supplement, policy is private insurance layered on top of Original Medicare specifically to cover some or all of the cost-sharing Medicare itself leaves behind, which can include some or all of that 20% Part B coinsurance depending on the specific policy purchased. A Medicare Advantage plan works differently: it replaces Original Medicare's 80/20 coinsurance split entirely with its own cost-sharing structure, typically a flat copay per visit, along with its own provider network and prior-authorization rules.

Neither answer is generic enough to state a single number here. Medigap policies are sold in several standardized versions that cover different shares of coinsurance, and Medicare Advantage plans are run by dozens of different private companies, each setting its own copay, network, and authorization rules for outpatient physical therapy specifically. The only reliable way to know what either one means for your own PT bill is calling the number on your specific plan's card and asking directly what a physical therapy visit costs under that plan — a general Medigap or Medicare Advantage rule of thumb does not exist the way the 80/20 split does for Original Medicare alone.

Two questions are worth asking whichever type of coverage you carry: whether prior authorization is required before a course of PT starts, and whether there is a network requirement that limits which physical therapists you can see without paying more. Original Medicare alone has no network at all — any Medicare-enrolled provider works — while both Medigap-plus-Original-Medicare and Medicare Advantage can attach network or authorization conditions on top of, or instead of, the base coinsurance math described above.

What should someone on a limited income do if 20% coinsurance is unaffordable?

State-administered Medicare Savings Programs exist specifically to help pay Part A and/or Part B premiums, and in some cases deductibles, coinsurance, and copayments, for people with limited income and resources 4Ref 4Centers for Medicare & Medicaid Services (2024).Medicare Savings Programs.The existence and general purpose of state-administered Medicare Savings Programs for people with limited income and resources.. These are worth investigating before assuming a long PT course is financially out of reach — eligibility is based on income and resource limits that vary by state and program tier, and applying does not require already being enrolled in a Medigap or Advantage plan.

Why does the total course of care matter more than any single session's cost?

Because the 20% coinsurance applies separately to every visit, the number of visits a course of care takes matters more to the final bill than the price of any single session. A rotator cuff tear, a common cause of shoulder pain, is often managed nonsurgically with anti-inflammatories, injections, and physical therapy rather than surgery, partly because many tears do not heal on their own even with treatment — a pattern that can mean a longer course of visits than a straightforward sprain 5Ref 5American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Rotator Cuff Tears.That many rotator cuff tears are managed nonsurgically with physical therapy and do not heal on their own, used to illustrate why visit count, not just the coinsurance rate, drives total cost.. Frozen shoulder follows an even longer arc: the condition is understood to move through freezing, frozen, and thawing stages that together typically resolve over one to three years, with physical therapy focused on range of motion as the primary treatment throughout 6Ref 6American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Frozen Shoulder (Adhesive Capsulitis).That frozen shoulder progresses through stages and usually resolves over 1-3 years, used to illustrate a diagnosis whose long visit count multiplies coinsurance cost across benefit years..

A timeline that long can mean dozens of separate 20% coinsurance charges, spread across more than one calendar year and more than one annual Part B deductible. None of this changes the coinsurance percentage itself; it changes how many times that percentage gets applied before the condition resolves, which is the number worth asking a therapist to estimate honestly at the first visit, rather than accepting a single per-visit price as the whole answer to what a course of care with Medicare will actually cost.