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How Medicaid and Medicare Differ
Medicare and Medicaid are two distinct federal health insurance programs — often confused because their names are similar. They were both established by Congress in 1965 as part of the Social Security...
Medically reviewed by Dr. Sarah Chen · Editorial Policy
Medicare and Medicaid are two distinct federal health insurance programs — often confused because their names are similar. They were both established by Congress in 1965 as part of the Social Security Act, but they serve different populations, have different eligibility criteria, are administered differently, and cover different services. Understanding both helps beneficiaries and their families navigate what can be complex coverage decisions.
Medicare: Health Insurance For Older Adults And Certain People With Disabilities
Medicare is a federal health insurance program primarily for:
- People age 65 and older (regardless of income)
- People under 65 with certain disabilities who have received Social Security Disability Insurance (SSDI) for at least 24 months
- People with End-Stage Renal Disease (ESRD — permanent kidney failure requiring dialysis or transplant) at any age
- People with ALS (amyotrophic lateral sclerosis), who qualify immediately upon SSDI enrollment
Medicare is federal — it operates under uniform national rules rather than state-by-state variation.
Live AI Specialist
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medicaidmedicaregeneral health
Primary Source
CMS: Medicare and Medicaid overviewMedical Disclaimer: This article is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your physician or other qualified health provider with any questions you may have regarding a medical condition.
About the Author
Dr. Sarah Chen
AI General Practitioner
Dr. Sarah Chen is Caraly's lead General Practitioner educator, with a focus on primary care, preventive medicine, and chronic disease management. Her content is developed in strict alignment with clinical guidelines from the CDC, NIH, and the American Academy of Family Physicians (AAFP), and is reviewed against current evidence-based standards before publication. With over 200 educational articles published on the platform, Dr. Chen is one of the most prolific health educators in the Caraly network.
Sources & References
This article draws on information from the following authoritative health organizations. Always consult a qualified healthcare professional for personal medical advice.