Inpatient RehabIndex

What Is an Inpatient Rehabilitation Facility (IRF)?

What Medicare means by an inpatient rehabilitation facility, who qualifies, and how it differs from a nursing home or outpatient therapy.

After a stroke, a major injury or a joint replacement, a hospital discharge planner may suggest an "inpatient rehab" or "acute rehab." Medicare calls these inpatient rehabilitation facilities, or IRFs. They are hospitals, or distinct units within hospitals, that provide intensive rehabilitation under the supervision of a physician. This guide explains what an IRF is and how it differs from other places where people recover.

What an IRF provides

An IRF offers a coordinated program of several therapies, such as physical, occupational and speech-language therapy, along with rehabilitation nursing and regular physician oversight. Medicare's page on inpatient rehabilitation care describes what Medicare Part A may cover when a patient qualifies. The point of an IRF is an intensive, multidisciplinary program, which is different from a skilled nursing facility (SNF), where therapy is usually less intense.

Who typically qualifies

Medicare's coverage rules for IRF care are set out in the Medicare Benefit Policy Manual. In general, the patient must need and be able to take part in an intensive rehabilitation program, commonly described as about three hours of therapy a day at least five days a week. The patient must also need the services of more than one type of therapy, one of which must be physical or occupational therapy, and must need supervision by a rehabilitation physician. A patient who is too ill to take part, or who needs only one type of therapy, may be sent to a different setting. The treating physicians decide whether a patient meets the criteria, and the facility makes its own admission determination.

CMS also uses a list of qualifying conditions, such as stroke, spinal cord injury, brain injury, amputation, hip fracture and certain neurological conditions, to decide whether a facility is classified as an IRF. That list is about the facility's overall patient mix, not about whether any single patient is covered. See the federal classification rule for IRFs (42 CFR 412.29) for details.

IRF, SNF, LTCH and home health

Freestanding hospitals and hospital units

An IRF can be a freestanding rehabilitation hospital or a unit inside a general hospital. Each has its own Medicare certification number (CCN) in the CMS file, and the listings on this site show it. A unit inside a hospital may share staff and services with the rest of the hospital; a freestanding hospital is usually set up around rehabilitation. Neither type is better by definition. Ask about therapy hours, staffing and what medical care is on site.

What to ask

Medicare Advantage

Medicare Advantage plans can require prior authorization for IRF stays, and their networks vary. If your parent has a Medicare Advantage plan, ask the plan and the facility whether the stay is authorized and in network before you accept a transfer. Medicare's guidance on health plans explains how plans differ.

Where this directory fits

The listings here come from the CMS Provider Data Catalog and show certification number, ownership, beds where CMS lists them and the date of Medicare certification. They are not ratings. For measures such as how often patients return to the community, use Medicare Care Compare. We do not rate or recommend any facility.

Updated 2026-10-01.

General information only, current as of the date above. The information on Inpatient Rehab & LTCH Index is not medical advice and does not replace a doctor, nurse, discharge planner or other qualified professional. Do not use it to make decisions about diagnosis or treatment. If you have a medical emergency, call 911. Rules and programs change; check the official sources linked in this guide.

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