Medicare does not require a physician referral to start physical therapy. Since 2005, Medicare beneficiaries have been able to go directly to a physical therapist without first visiting a doctor. However, there is an important catch: a physician or other qualified provider must still certify your plan of care, typically within 30 days of your first treatment session. This distinction between a referral and a certification trips up a lot of people, so it’s worth understanding exactly how the process works.
Direct Access: No Referral Needed
In 2005, the Centers for Medicare & Medicaid Services revised its Benefit Policy Manual to eliminate the physician visit requirement for outpatient physical therapy. This means you can schedule an appointment with a physical therapist on your own, get evaluated, and begin treatment without a doctor’s order in hand.
This is sometimes called “direct access,” and it aligns with laws in all 50 states that allow patients to see physical therapists without a referral to some degree. For Medicare specifically, the rule is straightforward: you do not need to see your doctor first, and you do not need a written referral to walk into a PT clinic.
The Certification Requirement
Here’s where it gets nuanced. While you don’t need a referral, Medicare does require that you be “under the care of a physician.” In practice, this means a doctor, nurse practitioner, clinical nurse specialist, or physician assistant must certify your physical therapy plan of care. Certification is not the same as a referral. A referral sends you to the therapist. Certification means a qualifying provider reviews and signs off on the treatment plan your physical therapist creates after evaluating you.
The provider has 30 days from your first day of treatment (including the initial evaluation) to sign or verbally order this certification. So your therapist can evaluate you and start treatment right away, and the paperwork catches up within that window. Starting January 1, 2025, for patients who do come in with a referral, the signature requirement can also be met if the referring provider’s signed order exists and the therapist sends the plan of care to that provider within 30 days.
If the plan of care never gets certified, Medicare won’t pay the claims. This is why many PT clinics will ask for your doctor’s contact information at your first visit, even though they aren’t requiring a referral. They need to coordinate that certification behind the scenes.
What Medicare Considers Medically Necessary
Getting a certified plan of care is only half the equation. Medicare also requires that physical therapy services meet its standard of medical necessity. Your treatment must be specific and effective for your condition, provided at a frequency and duration that’s reasonable, and require the skill of a trained therapist rather than exercises you could do on your own after basic instruction.
Your therapist must document your functional status before treatment begins, track measurable progress at least every 10 treatment days, and show that you’re making significant, timely improvement. Medicare will not cover services that are purely repetitive, palliative, or simply maintaining a level of function you’ve already reached. The goal has to be meaningful functional improvement, and the records need to prove it.
A diagnosis alone doesn’t guarantee coverage. The key question Medicare asks is whether a skilled clinician’s expertise is genuinely needed for your specific situation, regardless of what condition you have.
Annual Spending Thresholds
Medicare places annual dollar limits on how much it will pay for therapy before additional scrutiny kicks in. For 2026, the first threshold is $2,480 for physical therapy and speech-language pathology services combined. Once your approved charges exceed that amount in a calendar year, your therapist must add a modifier to claims confirming the services are still medically necessary.
A second threshold exists at $3,000 (holding steady through 2028, after which it will be adjusted for inflation). Once charges pass this amount, claims may be selected for a targeted medical review, where Medicare contractors examine your records more closely to verify that continued treatment is justified. This doesn’t mean your therapy stops at these amounts. It means the documentation bar gets higher, and your therapist needs to clearly demonstrate ongoing progress.
Medicare Advantage Plans Are Different
Everything above applies to Original Medicare (Parts A and B). If you have a Medicare Advantage plan (Part C), the rules can vary significantly by insurer. Many Medicare Advantage plans do require prior authorization for physical therapy, which functions more like the traditional referral process people expect.
As one example, UnitedHealthcare’s Medicare Advantage plans require providers to submit a prior authorization request for the full plan of care. However, as of January 2025, the first six visits within eight weeks are covered without a clinical review, giving you time to start treatment while the authorization is processed. After six visits or eight weeks, the plan assesses medical necessity before approving additional sessions. The initial evaluation itself doesn’t require prior authorization.
Other Medicare Advantage insurers have their own rules. Some require referrals from your primary care provider. Some have narrower PT networks. Before starting physical therapy, check your specific plan documents or call the number on your member card to find out what’s required. Getting this wrong can leave you with unexpected bills.
How to Start PT Under Medicare
If you have Original Medicare and want to begin physical therapy, you can contact a physical therapy clinic directly and schedule an evaluation. Bring your Medicare card and be prepared to provide your primary care provider’s name and contact information so the clinic can arrange certification of your plan of care within 30 days.
You’ll pay 20% of the Medicare-approved amount for each session after meeting your annual Part B deductible. If you have a Medigap (supplemental) policy, it may cover part or all of that 20% coinsurance.
If you have Medicare Advantage, call your plan first. Ask whether you need prior authorization, whether you need a referral from your primary care provider, and whether the physical therapist you want to see is in-network. These three questions will save you from billing surprises and ensure your coverage kicks in from the first visit.