Medicare Phone Number
| Phone | (800) 633-4227 |
| Hours | 24 hours a day, 7 days a week |
| Website | www.medicare.gov |
USA Customer Care is an independent directory. We are not affiliated with, endorsed by, or operated by Medicare. Official website: www.medicare.gov. The numbers below are verified against official sources — always confirm on the official site.
About Medicare
Medicare is the US federal health insurance program for people age 65 and older, and for some younger people with disabilities or End-Stage Renal Disease. It is run by the Centers for Medicare & Medicaid Services (CMS). Coverage comes in parts: Part A (hospital), Part B (medical), Part C (Medicare Advantage plans from private insurers), and Part D (prescription drugs).
Most people call Medicare to ask about what is covered, sort out a claim or bill, compare or change plans during Open Enrollment, replace a lost Medicare card, or report suspected fraud. The main line, 1-800-MEDICARE, is open 24 hours a day, 7 days a week, so you can call any time.
One thing that confuses people: enrolling in Medicare and questions about your premiums are usually handled by the Social Security Administration (SSA), not Medicare itself. Use 1-800-MEDICARE for coverage, plans, claims, and your card; use Social Security (1-800-772-1213) to sign up or ask about premiums.
1-800-MEDICARE (general help)
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Common 1-800-MEDICARE (general help) issues & fixes
Use this line for coverage questions, claims and billing, plan comparisons, and replacing a lost Medicare card. Have your Medicare Number ready. For enrollment or premium questions, you will be directed to Social Security.
TTY (deaf or hard of hearing)
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Medicare Fraud Hotline
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Common Medicare Fraud Hotline issues & fixes
Report suspected Medicare fraud, billing for services you never received, or anyone pressuring you for your Medicare Number.
Step-by-Step Guides
Medicare — Frequently Asked Questions
The main number is 1-800-MEDICARE, which is 1-800-633-4227. It is open 24 hours a day, 7 days a week. For TTY, call 1-877-486-2048.
Because the line is open 24/7, early mornings and late evenings on weekdays usually have the shortest waits. The busiest period is Open Enrollment (mid-October through early December), so call outside those weeks if you can.
Have your red-white-and-blue Medicare card (or your Medicare Number) ready, plus the details of your question â a claim number, a bill, or the name of a plan you are comparing. The representative will verify your identity first.
Enrollment is handled by the Social Security Administration, not Medicare. Apply online at ssa.gov or call Social Security at 1-800-772-1213. Call 1-800-MEDICARE only after you are enrolled, for coverage and plan questions.
Yes. A free account at Medicare.gov lets you check what is covered, review claims, compare Part D and Advantage plans, and order a replacement card â often faster than phoning.
Call the fraud hotline at 1-800-447-8477 (1-800-HHS-TIPS), or report it through your Medicare.gov account. Never give your Medicare Number to anyone who calls you unexpectedly.
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