This page contains information on Medicare Part A and Medicare Part B eligibility and enrollment. For more information about Medicare for people who are still working, go to our Employer page or I’m 65 and Still Working page. Medicare Part A (Hospital Insurance) and Medicare Part B (Medical Insurance) are available to the individuals below: Age 65 or older Disabled End-Stage Renal Disease (ESRD)

This overview page provides links to important plan information on the Medicare Part D prescription drug benefit, first enacted under the Medicare Prescription Drug, Improvement, and Modernization Act (MMA) of 2003. Information about the Medicare Advantage and Part D plan offerings are included for each year, including plan premiums.

This page contains a downloadable document listing frequently asked questions (FAQs) regarding the relationship between Medicare and the Health Insurance Marketplace. Topics include: general enrollment, End Stage Renal Disease (ERSD), and coordination of benefits.

This page contains information for current and future contracting Medicare Advantage (MA) organizations, other health plans, and other parties interested in the operational and regulatory aspects of Medicare health plan enrollment and disenrollment.

Today, the Centers for Medicare & Medicaid Services (CMS) issued a proposed rule that would implement an order from the Federal district court for the District of Connecticut in Alexander v. Azar that would establish appeals processes for certain people with Original Medicare who are initially admitted to a hospital as an inpatient but subsequently reclassified by the hospital as an outpatient receiving observation services during their hospital stay and meet other eligibility criteria.

Medicare health plans, which include Medicare Advantage (MA) plans (such as Health Maintenance Organizations, Preferred Provider Organizations, Medical Savings Account plans and Private Fee-For-Service plans) Cost Plans and Health Care Prepayment Plans, must meet the requirements for grievance, organization determination, and appeals processing under the MA regulations found at 42 CFR Part 422, Subpart M.