Medicare Basics & Enrollment
Start with official Medicare guidance, then compare your individual options.
Original Medicare
Part A generally covers inpatient hospital care; Part B generally covers outpatient and medical services. Check official rules and costs.
Medicare.gov basics ↗Medicare Advantage (Part C)
Private plans providing Part A and Part B benefits, often with Part D. Networks, benefits, and costs vary.
Prescription Drug Plans (Part D)
Review covered drugs, pharmacy networks, premiums, and costs for each plan.
Review options ↗Medigap
Medicare Supplement Insurance can help pay certain Original Medicare out-of-pocket costs. Rules vary by state.
Official Medigap guide ↗When can you make changes?
Annual Enrollment Period: October 15 – December 7
Each year, eligible people can make certain Medicare Advantage and Part D changes for coverage generally starting January 1.
Medicare Advantage Open Enrollment: January 1 – March 31
People already enrolled in Medicare Advantage may have limited opportunities to switch MA plans or return to Original Medicare. This is not a general enrollment period for everyone.
Special Enrollment Periods (SEPs)
Some circumstances—such as moving, losing qualifying coverage, or certain changes in assistance eligibility—may permit changes outside regular enrollment. Eligibility and permitted changes depend on the specific situation.
Compare with confidence
Check your doctors, prescriptions, preferred pharmacies, premium, deductible, maximum out-of-pocket amount, prior authorization, and supplemental benefits. Use our printable comparison worksheet.
Explore Medicare Plans ↗