AI for Physical Therapists in 2026: Daily Notes, Units and Visit Limits

AI can draft a physical therapist's daily note from the visit conversation, suggest CPT codes, assemble a prior auth packet and propose a home exercise program. It can't time your one-on-one minutes, reassess a patient or sign a plan of care. Those stay yours, and every draft needs reading before your signature goes on it.

Research reviews cover gait analysis and outcome prediction, which matter clinically but won't clear tonight's charting. This guide follows the paperwork of one outpatient Medicare episode instead, from initial eval to recertification, then adds the privacy questions to settle first and the small, non-clinical place a general assistant like Merlin has.

Where a PT's admin hours go: one Medicare episode

Most physical therapy admin hangs off a single episode of care, and each document in it has its own rule. O*NET's task list includes reviewing referrals, documenting the initial exam, setting goals and plans for reevaluation, and charting treatment, response and progress (O*NET). Medicare and commercial payers then attach deadlines to that work. In 2025, 36% of US physical therapists worked in therapy and audiology offices, so for many PTs this paperwork runs through a clinic rather than a hospital department (BLS).

Wellpoint is one Medicare contractor, and its article speaks for its own jurisdictions, so check your own contractor's version of these rules.

Daily notes: what an AI scribe catches and what it misses on a treatment floor

An AI scribe for physical therapy turns the visit conversation into a draft note, and the choice is mostly between one inside your EMR and one you paste from. Vendors describe them this way:

• WebPT lists a voice-to-text scribe, note templates, CPT guidance and pre-sign-off checks that billed units are justified (WebPT). Its pricing page shows these as a separate product line and publishes no dollar figures (pricing).
• Prompt Health calls its scribe Sidekick, which drafts notes and suggests CPT codes during the visit. Prompt is for outpatient rehab only, US only, with flat per-provider pricing it doesn't publish (overview, FAQ).
• SPRY puts AI Scribe on its Plus plan, priced by visit volume rather than a listed figure (SPRY).
• ScribePT works outside the chart: record, generate, then copy and paste into your EMR. Its homepage claims up to 40 hours saved a month, which is the vendor's number, so measure your own (ScribePT).
• Heidi offers unlimited transcription and standard templates at no cost, with paid Clinician and Practice tiers above that (Heidi).

A transcript records what was said, which leaves gaps a PT has to fill. Hands-on work often happens in silence, so a scribe can miss manual techniques you never narrated. It can't see a patient's compensation during a squat, and it can't know that your cueing was the skilled part of the visit unless you say so. Read every draft for laterality, assist levels, reps and load, and the reason the session needed a therapist. The American Physical Therapy Association published a member-only practice advisory on ambient scribes covering documentation responsibilities, so read it if you belong.

Timed units and the 8-minute rule: AI can suggest, your clock decides

Under Medicare's 8-minute rule, you add up the day's timed-code minutes and the total sets the maximum units: 8 through 22 minutes is one unit, 23 through 37 is two, 38 through 52 is three (CMS Claims Processing Manual, chapter 5, section 20.2). A single timed service under 8 minutes isn't billed.

Say you did 24 minutes of 97110 and 23 of 97140. That's 47 minutes, so three units. Each code earns one full unit, leaving 9 and 8 minutes over, and the third unit goes to the larger remainder: two units of 97110, one of 97140. The note needs both Timed Code Treatment Minutes and Total Treatment Time to justify that (Wellpoint). Commercial plans may count differently, and some use the CPT Rule of Eights, which doesn't combine minutes across codes (Physitrack's explainer).

WebPT advertises a built-in 8-minute rule (pricing) and CPT suggestions that flag possible underbilling (WebPT). Treat that flag as a prompt to reread your note, never as a reason to add minutes that didn't happen, because a scribe hears talking rather than timing direct one-on-one contact. Separately, keep an eye on the annual dollar line: once a patient's combined PT and speech claims pass $2,480 in 2026, they need the KX modifier, and the medical review threshold stays at $3,000 (CMS).

Progress reports, re-evals and recertification

Progress reports are a good AI job because the raw material already sits in your last ten treatment notes. WebPT's in-EMR chatbot, for example, offers encounter summaries and letters of medical necessity (WebPT). Three limits apply:

• The clinician writes it. A physical therapist assistant may write elements between reports, but those aren't complete progress reports (CMS transmittal). The clinician must also personally furnish a billable service during that period (Wellpoint).
• A template can't justify a re-eval. Wellpoint says not to bill for routine reevaluations and requires a significant change the current plan of care didn't anticipate (Wellpoint). If software schedules a "30-day re-eval" by default, that's a charge to check.
• The signature chase has one narrow exception. Medicare can skip the plan signature when the record holds the physician's written order or referral and you documented sending the plan within 30 days of finishing the initial eval (42 CFR 424.24(c)(5)). Recertification at least every 90 days still stands.

Prior auth and visit limits

Prior auth suits AI better than most clinic tasks because it's repetitive form work built from facts already in the chart, though only for payers a tool actually supports. SPRY says its agent reads your documentation for diagnosis, goals, visit count and medical necessity, then submits to Carelon/BCBS, UnitedHealthcare and Humana. It sends unsupported or complex cases to staff, and it tracks approved, used and remaining visits with expiration dates (SPRY). Its claim that 80% of supported requests are automated comes from SPRY alone.

Rules vary by plan and change often. UnitedHealthcare, for one, revised its Medicare Advantage therapy policy in January 2025 to allow up to six follow-up visits after an initial evaluation before clinical review, and APTA said that hadn't gone far enough (APTA). Check the current rule on the patient's own plan, then have whoever owns authorizations look at visits remaining each week, so nobody runs out mid-episode unnoticed.

Home exercise programs and clinical questions: keep the dose yours

General chatbots can outline an exercise plan, but they fall short on the details that make it a prescription. A 2026 narrative review in Health Science Reports reports that large language models can produce broadly appropriate knee osteoarthritis plans with "notable deficiencies" in exercise specificity, dosage and progression. It also warned that AI screening can miss red flags when the information entered is incomplete (Hao and Siu). So check any AI-suggested exercise against the patient's irritability, precautions and surgical protocol.

Purpose-built tools keep you in the approval seat:

• Physitrack recommends programs from a library of 18,000+ exercise videos and sends nothing until you approve it (Physitrack).
• Medbridge offers 8,000+ videos, remote therapeutic monitoring and AI motion capture that scores movement assessments (Medbridge).
• WebPT includes home programs with 5,500+ exercises in its Care bundle (WebPT).
• Physiopedia's PAI answers rehab questions from Physiopedia's content, and its guide says it isn't a secure place for sensitive patient data, so ask it about the condition rather than the patient (Physiopedia).

HIPAA and recording consent, before a scribe runs

Any AI vendor that creates, receives, maintains or transmits protected health information for your clinic is a business associate (45 CFR 160.103), and HIPAA requires its assurances in a written agreement (45 CFR 164.502(e)). HHS applies this to cloud services even when they hold only encrypted data (HHS). This isn't legal advice, so run your setup past your compliance contact.

A marketing page won't settle this for you. Physitrack is unusually direct: its new EMR is built to meet HIPAA requirements, but it can't sign a business associate agreement until a security audit finishes and tells you not to enter real patient records until then (Physitrack). Prompt says it is HIPAA compliant, while its FAQ doesn't mention an agreement (FAQ), so ask. Ask every vendor for the signed agreement, how long audio is kept and whether your notes train its models.

Recording is a separate legal question from HIPAA. Federal law generally lets one party consent (18 U.S.C. 2511), while California requires consent from all parties to a confidential communication (Penal Code 632). An open treatment floor adds a complication a private exam room doesn't have: the patient on the next plinth never agreed to anything. Get consent from the patient you're treating, and ask your counsel how your state treats everyone else in earshot.

Merlin in a PT clinic: the business side only

Merlin is a desktop app for Macs that works with Gmail, Google Calendar and calls you record, and it should stay out of patient care entirely. Its privacy policy doesn't mention HIPAA or a business associate agreement, so don't use it with protected health information. It doesn't answer phones or send texts, and it doesn't run scheduling, billing or an EMR. Those stay with your EMR or practice management system.

Setup requires a Gmail and Google Calendar account, which matters here. Merlin reads what you connect, and paid plans upload meeting audio to a transcription service, so connect only a Google account with no patient mail or patient names in events. If that's not possible, Merlin isn't for you. If you do telehealth on the same Mac, switch off the two recording prompts under Settings → Preferences → Meetings.

What remains is the business side a clinic owner runs alongside treating patients:

• Referral relationships. Merlin's Gone quiet list catches a regular correspondent once two months pass with no email in either direction. An orthopedic office liaison who has stopped hearing from you would turn up there, as long as you'd written to them three or more times in the past year and those threads carry no patient details.
• People waiting on you. A direct email that has sat 2 to 30 days without your reply, such as a payer contracting rep or your landlord, shows under Needs you.
• Non-patient meetings. Before an EMR demo or partner call, Meeting Brief summarizes earlier threads with those people about 10 minutes ahead. Recording is included on every plan, and transcripts start with paid plans. Our note-taker comparison covers other options.
• Dates. Ask for a reminder about your license renewal or malpractice policy and it fires once, on the day you pick.

An email you request in Merlin's chat waits for your edits and confirmation before it goes. Routines, which run on a schedule, work unattended and can send with no such step, so limit them to summaries. Check what already has access to your account with this guide to Google's security settings.

How to start this week

1. Time one clinic day. Note how many charts you finish after the last patient, so you have your own baseline against any vendor's claim.
2. Ask your current EMR first. WebPT, Prompt and SPRY all sell AI features, and an add-on avoids copying text between systems. Get the price and the business associate agreement in writing.
3. Pilot a scribe on one therapist's caseload. Write a one-line patient consent script, and have that therapist check timed minutes against the note on every Medicare visit.
4. Audit ten signed notes after two weeks. Look for missing skilled language, wrong laterality and units the minutes don't support.