Physical therapy scheduling rules under Medicare and Medicare Advantage

What to take away

• Medicare physical therapy scheduling starts with the CMS plan of care, which sets visit frequency and duration before the first appointment is booked.
• Certification is due within 30 days of the initial visit, and recertification must be dated within 90 days of the last certification for the same condition.
• Medicare Advantage plans can require prior authorization and impose visit caps, so front desk staff must verify benefits before scheduling.
• Cancellation and no-show policies must account for authorization-bound visits, because a missed visit can waste a limited authorized unit.
• The KX modifier signals that services exceed the therapy threshold, and scheduling templates should flag those visits for documentation review.
• Front desk, therapist, and billing staff need a shared handoff routine to keep certification dates and authorizations current.

How the Medicare plan of care sets the clock on visit frequency

The plan of care is the document that authorizes Medicare Part B therapy services. A physician or allowed nonphysician practitioner must certify it, and it must include the diagnosis, the type and amount of therapy, and the frequency and duration of visits.

For physical therapy, that means the plan states how many visits per week and over how many weeks. Scheduling staff cannot book beyond that frequency without an updated plan.

The plan of care must be reviewed at least every 60 days by the physician or nonphysician practitioner who signed it. If the plan changes, the scheduling template changes with it.

A patient who starts at two visits per week may drop to one visit per week after a progress note, and the front desk needs that update before the next booking cycle.

Under traditional Medicare, there is no hard cap on medically necessary therapy visits, but the therapy threshold triggers additional documentation. The threshold is a dollar amount, not a visit count, so scheduling frequency affects when a patient crosses it. High-frequency schedules can hit the threshold early, which means the KX modifier and supporting documentation must be ready sooner.

The plan of care also sets the start of care date. That date drives certification timing, recertification windows, and the fiscal year in which services are billed. If the initial visit is delayed, the certification clock starts later, but the plan of care still governs the frequency the therapist ordered.

Schedulers should treat the plan of care as a live document. When a patient calls to book, the front desk should confirm the current frequency, the certification expiration date, and whether the plan has been reviewed within 60 days. That routine prevents booking visits that cannot be billed.

For practices that want a repeatable booking process, the steps in this guide to schedule physical therapy appointments can be adapted to include plan-of-care checks at the point of scheduling.

Certification timing and recertification windows that reshape the booking calendar

Initial certification must be obtained within 30 days of the first therapy visit. The certifying physician or nonphysician practitioner signs the plan of care, and the signature date must fall within that window. If the certification is late, the practice may have to hold claims until the signature is obtained, which delays revenue.

Recertification is required for each 90-day period after the initial certification. The recertification must be dated within 90 days of the last certification for the same condition. If a patient continues therapy beyond 90 days, the recertification must be signed before the next 90-day period begins. A late recertification can create a gap in coverage.

The 90-day recertification window is not the same as the 60-day plan-of-care review. The plan of care is reviewed at least every 60 days, but recertification is a separate Medicare requirement tied to the 90-day certification period.

Schedulers need to track both dates, because a patient can have a current plan of care review and still need a recertification signature.

Recertification can be signed by the physician or nonphysician practitioner who signed the initial certification. If the patient's condition changes, a new plan of care may be needed instead of a recertification. That distinction affects scheduling because a new plan may reset the frequency and duration.

When a recertification is pending, the practice should not book visits beyond the current certification period unless the therapist expects the recertification to be signed before the next visit. A common scheduling error is booking a full 90-day block of visits before the recertification is signed. If the signature is delayed, those visits may not be covered.

A simple compliance routine can keep certification and recertification dates visible. The physical therapy compliance checklist for new owners includes certification tracking as a core item, and the same logic applies to established practices.

Medicare Advantage prior authorization and visit caps versus traditional Medicare

Traditional Medicare (Part B) generally does not require prior authorization for outpatient physical therapy. It does require the plan of care and certification, and it applies the therapy threshold for additional documentation. There is no plan-specific visit cap, but medical necessity and documentation rules still apply.

Medicare Advantage plans are different. These are private plans that contract with Medicare, and many require prior authorization before therapy begins. The authorization may specify a number of visits, a date range, or both. If the authorization is for 12 visits, the practice cannot bill for a 13th visit without a new authorization.

Some Medicare Advantage plans also impose visit caps, such as a maximum number of therapy visits per year or per condition. These caps are plan-specific, so the front desk must verify benefits for each patient.

A plan may cover 20 visits per year, while another may cover 30, and some may have no hard cap but require authorization after a certain number.

Prior authorization requests often require clinical documentation, including the plan of care, the initial evaluation, and sometimes progress notes. The turnaround time can be several business days, so scheduling staff should not book a full course of care until the authorization is approved.

If the authorization is pending, the practice may schedule only the initial evaluation or hold scheduling until approval.

The difference between traditional Medicare and Medicare Advantage affects appointment frequency. Under traditional Medicare, the therapist's plan of care drives frequency. Under Medicare Advantage, the authorization may limit frequency to a specific number of visits per week or per month. Schedulers must follow the more restrictive of the two.

For practices managing both payer types, a single scheduling workflow can handle both if it includes a payer verification step. The broader physical therapy operations guide describes how work flows through a practice, and prior authorization can be built into that flow.

Feature	Traditional Medicare (Part B)	Medicare Advantage
Prior authorization	Generally not required	Often required before therapy
Visit caps	No hard cap; therapy threshold applies	Plan-specific caps may apply
Plan of care	Required, certified within 30 days	Required, plus plan authorization rules
Recertification	Every 90 days	Every 90 days or per plan rules
Cancellation impact	Visit can be rescheduled within plan	Missed visit may use an authorized unit

Cancellation, no-show, and missed-visit rules when a visit is authorization-bound

When a visit is tied to a prior authorization, a cancellation or no-show can have consequences beyond a lost slot. If the authorization is for a fixed number of visits, a missed visit may still count against that number if the practice bills it.

Many practices do not bill for no-shows, but the authorization may still limit the total visits available.

Medicare does not pay for missed appointments. A no-show is not a covered service, so the practice cannot bill Medicare or Medicare Advantage for the missed visit.

The practice can charge the patient a no-show fee only if it has a written policy, and the fee must not be billed to Medicare. The policy must be applied consistently to all patients.

For authorization-bound visits, the scheduling policy should distinguish between a cancellation with notice and a no-show. A cancellation with 24 hours notice can often be filled from a waitlist, preserving the authorized visit for another patient. A no-show wastes the slot and may consume an authorized visit if the plan counts scheduled visits rather than attended visits.

Some Medicare Advantage plans require that the practice notify the plan when a visit is missed or when the patient stops attending. The plan may then adjust the authorization. The front desk should document cancellations and no-shows in the patient's record and notify billing staff if the pattern affects the authorized visit count.

A written cancellation policy should state the notice period, the fee if any, and how the practice handles repeated no-shows. The policy should also explain that Medicare and Medicare Advantage do not pay for missed visits. Patients should sign the policy at intake so there is no dispute later.

When a patient misses visits, the therapist may need to update the plan of care if the frequency changes. If the patient returns after a gap, the therapist should reassess and document whether the original frequency is still appropriate. That reassessment may trigger a new certification or recertification.

Building scheduling templates around the KX modifier and therapy threshold

The KX modifier is added to therapy claims when the services exceed the therapy threshold and the therapist certifies that the services are medically necessary. The threshold is a dollar amount that CMS updates annually. When a patient's cumulative therapy charges exceed the threshold, the KX modifier is required for the claim to be paid.

Scheduling affects when the threshold is crossed. A patient with a high-frequency schedule may cross the threshold in a few weeks, while a patient with a low-frequency schedule may take months. The front desk should flag patients who are approaching the threshold so the therapist can document medical necessity before the next visit.

The KX modifier is not a scheduling tool, but it changes the documentation handoff. When a patient is near the threshold, the therapist must include the KX modifier and supporting documentation in the progress note. Billing staff need that note before they can submit the claim. If the note is late, the claim is delayed.

A scheduling template can include a threshold flag. For example, the template can mark patients who have received a certain number of visits or whose charges are nearing the threshold. The flag prompts the therapist to review the plan of care and document the need for continued services.

The therapy threshold applies to physical therapy and speech-language pathology combined, so a patient receiving both services may cross the threshold faster. Schedulers should be aware of combined services when booking. The threshold is also applied per beneficiary per year, not per provider, so a patient who moves between practices may have already crossed it.

Tracking threshold flags is one of the physical therapy KPIs that owner-operators can monitor monthly. A rising number of KX claims may indicate that scheduling frequency needs review or that documentation is not keeping pace.

Documentation handoffs between front desk, therapist, and billing staff

The front desk, therapist, and billing staff each hold a piece of the scheduling puzzle. The front desk verifies benefits and authorizations. The therapist documents the plan of care and progress. Billing staff confirm certification dates and submit claims. If any handoff fails, the visit may not be covered.

A daily huddle can keep the handoffs current. The front desk reports new authorizations and cancellations. The therapist reports plan-of-care changes and recertification needs. Billing staff report claims held for missing certification or KX documentation. The huddle should be short and focused on exceptions, not routine visits.

A shared calendar or electronic health record can automate some handoffs. Flags for certification expiration, authorization expiration, and threshold status can appear on the schedule. The therapist can then address documentation before the visit, and billing staff can release claims without chasing signatures.

Written procedures should define who contacts the physician for certification and recertification. In many practices, the therapist or a designated staff member sends the plan of care to the physician. The front desk should not book beyond the certification period until the signature is returned. A clear owner for each step prevents gaps.

The handoff also includes the patient. The front desk should tell the patient how many visits are authorized and what happens if visits are missed. The therapist should explain the plan of care and the expected frequency. Billing staff should explain any financial responsibility.

When patients understand the limits, they are more likely to attend and less likely to be surprised by a bill.

For practices that are hiring or training, the physical therapy licensing requirements guide covers the credentials that therapists and billing staff need, which supports consistent documentation.

What CMS and Federal Register updates to monitor each year

CMS updates therapy rules through the Physician Fee Schedule and other rulemaking. The therapy threshold amount is updated annually, and changes to documentation requirements can affect scheduling. Practices should monitor the Federal Register :: Health & Public Welfare section for proposed and final rules that affect Medicare therapy coverage.

The Federal Register publishes rules, proposed rules, and notices from CMS and other agencies. The Federal Register :: Topics (CFR Indexing Terms) page indexes documents by CFR terms, so therapy-related rules may appear under terms such as health facilities, Medicare, and physical therapy.

Following those terms helps a practice spot changes that affect conditions of participation. The Federal Register :: Current Federal Register Document Issue lists documents published each day, and checking it weekly can help a practice catch a new rule before it takes effect.

The Federal Register :: Reader Aids :: Understanding the Federal Register explains how to read rule text, including effective dates and compliance dates, which is useful when updating scheduling policy.

When a rule changes, the practice should update its plan-of-care template, certification tracking, and scheduling flags. The update should be documented and communicated to front desk, therapist, and billing staff. A short internal memo can summarize the change and the new procedure.

Finally, state licensing boards and the APTA also publish updates that may affect practice. While Medicare rules are federal, state scope-of-practice and supervision rules can affect who may perform evaluations and how visits are scheduled. A yearly compliance review should include both federal and state sources.

Common questions

How often must the plan of care be reviewed? The plan of care must be reviewed at least every 60 days by the physician or nonphysician practitioner who signed it. The review confirms that the frequency and duration are still appropriate. If the plan changes, the scheduling template should be updated.

What is the deadline for initial certification? Initial certification must be obtained within 30 days of the first therapy visit. The certifying practitioner signs the plan of care, and the signature date must fall within that window. A late certification can delay claims.

Does Medicare Advantage require prior authorization for physical therapy? Many Medicare Advantage plans require prior authorization before therapy begins. The authorization may specify a number of visits or a date range. Practices should verify benefits before scheduling a full course of care.

Can I bill Medicare for a no-show? No. Medicare and Medicare Advantage do not pay for missed appointments. A practice may charge the patient a no-show fee only if it has a written policy that is applied consistently and is not billed to Medicare.

What is the KX modifier used for? The KX modifier is added to therapy claims when services exceed the therapy threshold and the therapist certifies that they are medically necessary. It signals that additional documentation supports the services. Scheduling frequency affects when the threshold is crossed.

How do I track recertification dates? Recertification is required for each 90-day period after the initial certification. The recertification must be dated within 90 days of the last certification. A shared calendar with expiration flags can help the front desk avoid booking beyond the certified period.