How is occupational therapy different from physical therapy?

Physical therapy focuses on movement, strength, mobility, and gait: getting the patient walking, standing, climbing, and moving safely. Occupational therapy focuses on function in daily activities: bathing, dressing, toileting, eating, cooking, managing medications, using the phone, paying bills, and adapting the home and routines so the patient can do these things again. After a stroke, a patient often needs both. PT addresses the affected leg; OT addresses how the patient buttons a shirt one-handed, uses adaptive cookware, and reorganizes the kitchen to compensate.

What does outpatient OT cost in 2026?

Under Medicare Part B, the patient pays 20% co-insurance after the annual Part B deductible ($257 in 2026). For an outpatient OT visit billed roughly $125 to $180, the patient’s 20% share is approximately $25 to $36 per visit. A Medicare Supplement (Medigap) plan typically covers the 20%, leaving the patient with no out-of-pocket cost. A Medicare Advantage plan has its own copay structure, often a flat $20 to $40 per visit.

Does OT delivered at home cost differently?

Yes. Home health OT under Part A, during a covered home-health episode, carries no separate co-pay. It is bundled into the home-health episode payment. The patient must qualify for home health (homebound with a need for intermittent skilled care). Outpatient OT delivered at home under Part B follows the standard 80/20 split and is used when the patient does not meet home-health eligibility.

What conditions does Medicare commonly cover OT for?

Post-stroke retraining of activities of daily living, including one-handed techniques and adaptive equipment. Post-surgical hand and upper-extremity rehabilitation (hand surgery, shoulder repair, fracture). Cognitive and behavioral adaptation in early-to-mid dementia, including caregiver training and home modifications. Low vision rehabilitation for macular degeneration and diabetic retinopathy. Fall prevention through home safety assessment and routine adaptation. Parkinson’s disease, including LSVT BIG style functional training. Lymphedema management in coordination with PT. Any documented functional deficit OT can address, with a physician order and plan of care.

Does Medi-Cal cover occupational therapy for adults?

Yes. Medi-Cal covers OT for adults through managed-care plans and Fee-for-Service. A physician order and a written plan of care are required. Plans typically authorize an initial block of visits, with additional visits subject to prior authorization based on documented progress. For dual-eligible members, Medicare pays first and Medi-Cal picks up the 20% co-insurance plus any additional visits Medicare does not authorize, effectively removing out-of-pocket cost.

What is the KX modifier and when does it apply?

The KX modifier is a billing code the therapist adds to claims once the patient’s cumulative annual therapy spend crosses the threshold ($2,330 for OT in 2026; PT and speech share a separate $2,330 threshold). The modifier certifies that continued therapy is reasonable and medically necessary, with documentation in the chart to support it. Above roughly $3,000 in cumulative annual spend, claims may be subject to a targeted medical review by a Medicare contractor. Properly documented ongoing OT is consistently covered.

Occupational therapy and Medicare: 2026 rules

What occupational therapy actually is

Occupational therapy treats function in daily life. The “occupation” in the name is the older sense of the word: the things a person does every day to occupy time and run a life. Bathing, dressing, toileting, eating, cooking, managing medications, balancing a checkbook, driving, working, gardening, holding a grandchild. After a stroke, a fall, a surgery, or the slow erosion of dementia or arthritis, those activities get harder. OT is the discipline that retrains them or adapts the environment so they remain possible.

For a senior, OT often looks like this: after a right-sided stroke, the therapist teaches one-handed dressing techniques, recommends a button hook, redesigns the kitchen so frequently used items move to the unaffected side, and trains the patient and family on safe transfer from chair to toilet. None of that is movement therapy in the PT sense. It is functional therapy.

How Medicare pays for OT

Occupational therapy under Medicare comes in two channels:

Outpatient OT under Part B. Delivered in a clinic, hospital outpatient department, CORF, or SNF outpatient. Medicare pays 80%, patient pays 20%, after the Part B deductible.
Home health OT under Part A. Delivered at home during a covered home-health episode. No separate co-pay. The patient must be homebound and have a skilled need.

Either channel requires a physician order, a written plan of care signed within 30 days of the start of treatment, and documentation of a functional deficit OT can address. Re-evaluation typically happens every 10 to 13 visits.

The cap that no longer exists

For two decades, Medicare imposed an annual dollar cap on OT (separate from a PT-plus-speech combined cap). The 2018 Bipartisan Budget Act eliminated the hard cap permanently. In its place is a soft threshold, roughly $2,330 for OT in 2026, above which the therapist adds a KX modifier to the claim certifying medical necessity. With the modifier, Medicare continues to pay. Above approximately $3,000 in cumulative annual spend, a claim may be flagged for a targeted medical review by a Medicare contractor. Properly documented therapy is consistently covered.

What it costs in 2026

Part B outpatient OT in California is billed at roughly $125 to $180 per 45-minute visit. With Medicare paying 80% after the Part B deductible ($257 in 2026), the patient’s 20% co-insurance is approximately $25 to $36 per visit.

Medicare Supplement (Medigap): typically covers the 20%, $0 patient cost.
Medicare Advantage: own copay structure, often $20 to $40 per visit, with an annual out-of-pocket maximum.
Home health OT during a covered episode: $0 patient cost.
Medi-Cal only: $0 patient cost, with prior authorization for extended courses.
Dual-eligible (Medicare + Medi-Cal): effectively $0.

What Medicare commonly pays to treat

The frequent indications for OT among California seniors:

Post-stroke ADL retraining. One-handed techniques, adaptive equipment, kitchen and bathroom redesign, caregiver training. Intensive in the first three months, often continuing for months after.
Post-surgical hand and upper-extremity recovery. Hand surgery (trigger finger, carpal tunnel, fractures), shoulder repair, wrist fracture. Includes splinting, scar management, range of motion, and return to function.
Dementia adaptation. Caregiver training, environmental modification, routine simplification, fall prevention. Less about “treating” dementia and more about extending the period of independent function.
Low vision rehabilitation. For macular degeneration, diabetic retinopathy, glaucoma-related vision loss. Training on magnifiers, lighting, contrast, organizational systems for medications and finances.
Fall prevention. Home safety assessment, routine adaptation, equipment recommendations, balance and protective response training.
Parkinson’s disease. Functional training, often paired with PT, including LSVT BIG style amplitude training for daily activities.
Lymphedema management. In coordination with PT, often after breast cancer surgery.
Arthritis and chronic joint disease. Joint protection techniques, adaptive equipment, splinting.

PT and OT: how they differ

The simplest separation:

PT works on the body part. Strength, range of motion, gait, balance, mobility. The therapist asks: can the patient walk fifty feet safely.
OT works on what the body part does. Function in daily life. The therapist asks: can the patient bathe themselves safely, prepare a simple meal, manage their pills, and live without supervision.

After a major event like a stroke or hip fracture, most patients need both, often delivered in the same week by the same agency. PT gets the leg working. OT gets the patient dressing again. Medicare pays for both concurrently under separate plans of care.

Home health OT versus outpatient OT

For a homebound senior, home health OT is often the right starting point. The therapist sees the patient in the actual environment, can recommend specific changes (handrails, raised toilet seat, kitchen rearrangement), trains the family caregiver in real time, and the patient pays nothing during the covered episode. The limit is that home health visits are typically less intensive and have less equipment than a clinic.

Once the patient is no longer homebound, transitioning to outpatient OT is often the right next step. Outpatient clinics have specialized hand therapy equipment, splinting materials, work simulators, and full kitchen training spaces that a home setting does not.

Medi-Cal coverage in California

Medi-Cal covers occupational therapy for adults and children through managed-care plans and Fee-for-Service. A physician order and a written plan of care are required. Plans typically authorize an initial block of visits with prior authorization for extensions. For dual-eligible members, Medicare pays primary and Medi-Cal covers cost-sharing and additional visits, effectively removing out-of-pocket cost when the provider participates in both programs.

How to start

Identify the functional problem: difficulty dressing, cooking, managing pills, bathing, returning to work.
See the primary care physician, who orders OT and may refer to a specific clinic. After a hospital discharge, the discharge planner often arranges it.
Choose a clinic in-network for the patient’s plan. For Original Medicare, any Medicare-enrolled OT clinic works.
The OT performs an initial evaluation, builds a plan of care, and submits it to the physician for signature within 30 days.
Treatment begins. Re-evaluation occurs every 10 to 13 visits. Above the KX threshold, the therapist adds the modifier and continues.

Common misconceptions to clear up

“OT is the same as PT.” It is not. PT addresses movement and mobility. OT addresses function in daily life. Many patients need both, billed under separate plans of care.

“Medicare does not cover OT for dementia.” Medicare covers OT for documented functional deficits, including those caused by dementia. The therapy targets compensatory strategies and environmental adaptation, not the dementia itself.

“OT only works in a clinic.” Home is often the better setting. Home health OT during a covered episode costs the patient nothing and lets the therapist work in the environment where the function actually has to happen.

“The cap stops OT at $2,330.” The cap was eliminated in 2018. Above the threshold the therapist adds a KX modifier and Medicare continues to pay for medically necessary care.

Related services and next steps

This guide explains coverage and eligibility, not medical advice. Talk to a licensed clinician about care decisions. California Care Compass does not place referrals on Services & Treatments pages.

Occupational therapy and Medicare coverage in California: the 2026 rules.