Medicare Cardiac Rehabilitation: Who Qualifies, Session Limits and Costs

Medicare Part B covers up to 36 hours of cardiac rehabilitation after a qualifying heart problem, and up to 72 if your Medicare contractor approves more. Intensive cardiac rehab gets 72 sessions from the start, packed into 18 weeks. In a doctor's office, Original Medicare leaves you 20% of the approved amount after the $283 Part B deductible (2026 figure).

The coverage is solid. The bigger problem is that most people who qualify never go. A national analysis cited by the federal Million Hearts initiative put participation between 19% and 34%. So this piece covers both halves: what Medicare's rules actually say, and what to do so a referral doesn't die in a discharge folder.

Source: 42 CFR 410.49(f); Medicare.gov, Cardiac rehabilitation programs; CMS, 2026 Parts A and B premiums and deductibles.

Who qualifies

Eligibility is diagnosis-based. The federal regulation, 42 CFR 410.49(b)(1), lists the conditions, and Medicare.gov repeats them in plainer words. You need at least one:

Source: 42 CFR 410.49(b)(1); Medicare.gov, Cardiac rehabilitation programs.

Two lines in that table cause the most confusion.

The heart attack window is 12 months. If your cardiologist brings up rehab a year and a half after the event and that's your only qualifying condition, it no longer fits the regulation. Bypass surgery, valve work and stents don't carry the same 12-month language.

Heart failure qualifies only when it's the specific kind the rule describes: reduced ejection fraction (35% or lower), NYHA class II to IV symptoms despite at least six weeks of optimal heart failure therapy. That six-week wait is built into the rule. If you were just diagnosed, it's normal for the rehab referral to come later.

One more thing from CMS's claims manual (Pub. 100-04, ch. 32, sec. 140.2.2): if you have two qualifying conditions at once, say a heart attack and ongoing stable angina, you get one series of rehab, not two. Once you finish a program, you need a new qualifying event before Medicare covers another one.

What a covered program has to include

Cardiac rehab isn't a gym membership with a heart monitor. Under 410.49(b)(2), a program Medicare pays for has to include all five of these:

• Physician-prescribed exercise on every day you get services: aerobic work plus strengthening or stretching as your doctor decides.
• Cardiac risk factor modification: education, counseling and behavior change on things like blood pressure, cholesterol, smoking and diet, tailored to you.
• A psychosocial assessment covering your mental and emotional state and the home situation that affects your recovery.
• An outcomes assessment at the start and end of the program, with objective exercise measures.
• An individualized treatment plan, established, reviewed and signed by a physician every 30 days.

That 30-day physician signature matters to you more than it seems. A plan that isn't renewed on time means the program isn't meeting one of Medicare's conditions. If a program ever tells you a session "might not be covered," ask whether the plan is current.

Regular vs. intensive cardiac rehab

Both programs take the same qualifying conditions. The difference is dose and pace. Intensive cardiac rehab (ICR) is only available through programs CMS has approved after they showed, in peer-reviewed published research, that they slowed the progression of coronary heart disease or reduced the need for bypass surgery or angioplasty and stenting, including a statistically significant drop in at least five measures such as LDL cholesterol, blood pressure and body mass index. CMS keeps the list of approved ICR programs on its website. Regular cardiac rehab (CR) has no such approval list.

Source: 42 CFR 410.49(c) and (f); 42 CFR 410.47; CMS Claims Processing Manual, ch. 32, sec. 140.

A "session" is billed in one-hour units, but the claims manual sets the floor at 31 minutes. Less than 31 minutes in a day can't be billed as a session at all. For regular CR, two sessions in one day require at least 91 minutes. Short pieces in the same day get added together: 20 minutes in the morning and 35 in the afternoon is one session.

You can switch once, from intensive to regular rehab, but not the other way. If you switch, you get only the sessions left. CMS's own example: 12 ICR sessions, then 24 CR sessions, for 36 total.

About those extra 36 regular sessions: they aren't automatic. The program adds a code (the KX modifier) to claims past session 36 confirming the medical record supports more. Without it, Medicare denies sessions above 36. If your cardiologist thinks you need more, ask the program before session 30 how they handle it. Don't find out from a denial on your Medicare Summary Notice.

Where you can go, and the virtual supervision rule

Medicare pays for cardiac rehab in two places: a physician's office and a hospital outpatient department, which includes critical access hospitals. A physician, nurse practitioner, physician assistant or clinical nurse specialist has to be immediately available for consultation and emergencies the whole time. Nonphysician practitioners have been allowed to supervise since January 1, 2024.

Here's what changed recently. During COVID, CMS let that supervising practitioner be "present" by live video instead of in the building. Year-to-year extensions kept it going through December 31, 2025. In the CY 2026 Physician Fee Schedule final rule, CMS made it permanent: direct supervision can include virtual presence through real-time audio and video, not audio alone. The current hospital outpatient rule, 42 CFR 410.27, says the same for cardiac, intensive cardiac and pulmonary rehab.

I checked the CY 2027 final rule published November 9, 2026. It doesn't change the cardiac rehab supervision or session rules.

Be clear on what "virtual" means here. It's about where the supervising clinician is. You still go to the rehab site, a doctor's office or hospital outpatient department. It doesn't mean Original Medicare covers rehab you do at home on your own. If a program offers a home or video option, ask how it's billed and whether Medicare will pay before you start. Telehealth rules have changed several times in the last few years; our Medicare telehealth explainer covers that side.

My read: the practical upside is access. A program no longer needs a supervising practitioner physically on site every hour to meet the rule, which should make it easier for smaller sites to offer sessions. If the nearest program has a waitlist, it's worth calling around.

What you pay

Under Original Medicare, the Part B deductible applies first: $283 in 2026. CMS hasn't announced the 2027 deductible as of today; I'll update this when it does. After that:

• In a doctor's office: you pay 20% of the Medicare-approved amount for each session.
• In a hospital outpatient department: after the Part B deductible, you also pay the hospital a copayment, on top of the usual 20% for the doctor's services. Medicare.gov says that for outpatient hospital services, the copayment for a single service generally can't be more than the Part A inpatient deductible ($1,736 in 2026). In a critical access hospital it can be higher.

The approved amount per session depends on the setting and where in Florida you are, so I won't quote one. The math is what matters, because 36 or 72 sessions add up. Here's a hypothetical with a round number that is not an actual Medicare rate:

36 sessions, deductible not met$946.4036 sessions, deductible met$720.0072 sessions, deductible not met$1,666.4072 sessions, deductible met$1,440.00

Source: CMS 2026 Part B deductible; Medicare.gov cost rules; per-session amount is hypothetical

Show the numbers

Scenario	You pay
36 sessions, deductible not met	$946.40
36 sessions, deductible met	$720.00
72 sessions, deductible not met	$1,666.40
72 sessions, deductible met	$1,440.00

The Million Hearts page itself notes that per-session copays are a financial obstacle for most participants. Two or three sessions a week for three months is a real bill on a fixed income. Before session one, ask the program for its expected cost per session for someone with your coverage. If cost is going to make you quit at session 12, say so up front; it's better to plan around it than to stop halfway.

If you're getting a large Part B bill and your income is limited, look at the Medicare Savings Program in Florida. At the QMB level, Medicare.gov says providers can't bill you for Medicare-covered deductibles, coinsurance and copayments.

Medicare Advantage and Medigap

Medicare Advantage. Under 42 CFR 422.101, a Medicare Advantage plan has to cover all Part A and Part B services and follow Medicare's national coverage determinations. So the qualifying conditions and the basic benefit come with you. What differs is how you get it: the plan's network, whether it requires prior authorization, and its own copayments per session. Read your plan's Evidence of Coverage for "cardiac rehabilitation" before you pick a program, and call the plan if the closest program isn't listed as in-network. If a request is denied, you have appeal rights; the Medicare appeal process post walks through the steps and deadlines.

Medigap. With Original Medicare plus a Medicare Supplement policy, the 20% is where Medigap does its work. According to Medicare.gov's comparison chart, every standardized Medigap plan pays at least half of the Part B coinsurance, and most pay all of it. Florida's specific Medigap rules are in our Florida Medigap guide, and you can see how Medicare Supplement coverage works on our Florida Medicare Supplement page.

Why so many people skip it

Heart disease is the leading cause of death in the U.S., and someone has a heart attack every 40 seconds, per the CDC. Cardiac rehab is one of the better-supported things that happens after. The federal Million Hearts initiative reports that people who attend all 36 sessions have a 47% lower risk of death and a 31% lower risk of heart attack than people who attend just one. Yet the uptake numbers are poor. Million Hearts also cites survey data from 20 states and DC in which only 1 in 3 heart attack survivors reported getting cardiac rehab.

Low end of national range19%High end of national range34%Million Hearts goal70%

Source: Million Hearts, Cardiac Rehabilitation

Show the numbers

Measure	Share
Low end of national range	19%
High end of national range	34%
Million Hearts goal	70%

Million Hearts lists the barriers plainly. For every day you wait to start, you're about 1% less likely to enroll. People outside metro areas are 30% less likely to take part. And the single biggest predictor of whether someone goes is how strongly their doctor recommends it.

My read: the rules aren't what keep people out. It's a referral that never gets scheduled, a program 40 minutes away, and a cost nobody mentioned. So:

1. Before you leave the hospital or your first cardiology follow-up, ask directly: "Do I qualify for cardiac rehab, and has the referral been sent?"
2. Call the program yourself within a few days. Don't wait for them to call you.
3. Ask the program three questions: what the expected cost per session is with your coverage, whether they bill as a doctor's office or a hospital outpatient department, and how they handle sessions past 36.
4. If you're in Medicare Advantage, confirm the program is in-network and whether authorization is needed.

Florida: getting help

Florida's SHINE program (Serving Health Insurance Needs of Elders) is run by the Florida Department of Elder Affairs with local Area Agencies on Aging. Its trained volunteers give unbiased, confidential, one-on-one Medicare counseling, and it doesn't charge for it. Reach SHINE at 1-800-96-ELDER (1-800-963-5337) or floridashine.org. They can help you read a Medicare Summary Notice, compare how Original Medicare and Medicare Advantage would handle rehab, or start an appeal. Our SHINE guide explains what to bring.

Part-year Floridians have one more thing to think about. Original Medicare works at any rehab program in the country that takes Medicare, so you can start in Sarasota in March and finish near home in Ohio in May, as long as you stay within your session count. Medicare Advantage networks are usually local, so moving between states mid-program needs a call to the plan first. The snowbird guide goes deeper on this.

For a broader look at how Original Medicare, Medicare Advantage and Part D fit together in Florida, see our Florida Medicare page.

FAQ

How many cardiac rehab sessions does Medicare cover?

Medicare Part B covers up to 36 one-hour sessions of regular cardiac rehab, up to 2 a day over up to 36 weeks, with up to 36 more if the Medicare contractor approves. Intensive cardiac rehab covers up to 72 sessions, up to 6 a day, within 18 weeks.

Does Medicare cover cardiac rehab after a stent?

Yes. Coronary angioplasty (PTCA) or coronary stenting is one of the qualifying conditions in 42 CFR 410.49, along with a heart attack in the last 12 months, bypass surgery, stable angina, valve repair or replacement, a heart or heart-lung transplant, and stable chronic heart failure.

How much does cardiac rehab cost with Medicare?

In a doctor's office, after the Part B deductible ($283 in 2026) you pay 20% of the Medicare-approved amount. In a hospital outpatient setting, after the Part B deductible you also pay the hospital a copayment, on top of usually 20% for the doctor's services. A Medigap policy or Medicare Advantage plan changes what you pay out of pocket.

Does Medicare cover cardiac rehab for heart failure?

Yes, for stable chronic heart failure with an ejection fraction of 35% or less and NYHA class II to IV symptoms despite at least 6 weeks of optimal heart failure therapy.

Can my cardiac rehab be supervised virtually?

The supervising physician or practitioner can be present through real-time audio and video under rules CMS made permanent in the CY 2026 Physician Fee Schedule. You still attend at the rehab site; it does not mean Original Medicare covers rehab you do on your own at home.

Federal Medicare rules and your own plan or policy documents control what's covered and what you pay. Confirm your situation with Medicare, SHINE or a licensed agent, and talk to an attorney about legal questions.

Sources

1. Medicare.gov: Cardiac rehabilitation programs
2. Medicare.gov: Pulmonary rehabilitation programs
3. Medicare.gov: Outpatient hospital services
4. Medicare.gov: Compare Medigap plan benefits
5. Medicare.gov: Medicare Savings Programs
6. eCFR: 42 CFR 410.49, Cardiac rehabilitation and intensive cardiac rehabilitation programs
7. eCFR: 42 CFR 410.47, Pulmonary rehabilitation program
8. eCFR: 42 CFR 410.27, Therapeutic outpatient hospital services (supervision)
9. eCFR: 42 CFR 410.26, Incident-to services (direct supervision)
10. eCFR: 42 CFR 422.101, Medicare Advantage basic benefits
11. CMS: Medicare Claims Processing Manual, chapter 32, section 140
12. Federal Register: CY 2026 Physician Fee Schedule final rule (Nov. 5, 2025)
13. Federal Register: CY 2027 Physician Fee Schedule final rule (Nov. 9, 2026)
14. CMS: 2026 Medicare Parts A and B premiums and deductibles
15. Million Hearts (HHS): Cardiac Rehabilitation
16. Million Hearts (HHS): Cardiac Rehabilitation At A Glance
17. CDC: Heart Disease Facts
18. SHINE (Florida Department of Elder Affairs)