Medicare Supplement (Medigap) guidance
Medicare Supplement (Medigap), planned with confidence.
Medicare offers a few paths, and the choice between Original Medicare with a Medigap policy, Medicare Advantage, and Part D shapes your coverage and costs for years. We help you understand the trade-offs and move forward with a plan that fits your life — starting with a conversation and a verified secure link when you're ready.
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Medicare paths
Compare the paths before you enroll
- Original + Medigap
- Advantage
- Part D
Three paths shape most Medicare coverage decisions.
Original Medicare + Medigap, Medicare Advantage, or Part D
Most people choose how to receive Medicare benefits between two main paths — Original Medicare with a Medigap policy, or Medicare Advantage — and add Part D for prescriptions. Each balances cost, flexibility, and coverage differently.
Original Medicare + Medigap
Keep Original Medicare and add a Medigap policy to help with out-of-pocket costs, plus a standalone Part D plan for prescriptions.
- See any doctor or hospital that accepts Medicare.
- Add Medigap to help with copays, coinsurance, and deductibles.
- Add Part D for prescription drug coverage.
- Generally no network restrictions for covered services.
Medicare Advantage
Receive Medicare benefits through a private plan that bundles Parts A and B, usually with Part D included.
- Bundles hospital, medical, and often drug coverage in one plan.
- Often includes extras like dental, vision, or wellness.
- Typically uses networks, referrals, and prior authorization.
- Cannot be combined with a Medigap policy.
Part D (Prescription drugs)
Standalone prescription drug coverage you can add to Original Medicare when you don't get drug coverage another way.
- Covers prescription drugs not included in Original Medicare.
- Add it to Original Medicare or get it through many Advantage plans.
- Formularies, tiers, and costs vary by plan.
- Timing matters to avoid late-enrollment penalties.
Understanding the parts
Medicare is made up of several parts. Knowing what each covers helps you compare Original Medicare, Medicare Advantage, and Supplement options.
Medicare Part A (Hospital)
Helps cover inpatient hospital stays, skilled nursing facility care, hospice, and limited home health care. Most people get premium-free Part A based on work history.
Medicare Part B (Medical)
Helps cover doctor visits, outpatient care, preventive services, and some medical equipment. Part B requires a monthly premium for most people.
Medicare Advantage (Part C)
Private plans that bundle Part A and Part B — and usually Part D — often with extra benefits like dental, vision, or wellness programs. Rules and networks vary by plan.
Medicare Part D (Prescription drugs)
Standalone prescription drug coverage you can add to Original Medicare, or included in many Medicare Advantage plans. Formularies and costs differ by plan.
Medicare Supplement (Medigap)
Private policies that help pay some of the costs Original Medicare doesn't cover — like copayments, coinsurance, and deductibles. Medigap works with Original Medicare, not Advantage.
Key enrollment periods
Timing affects your options and can affect costs. These are the periods that matter most.
Initial Enrollment Period (IEP)
A 7-month window around your 65th birthday when you can first sign up for Medicare. Timing here can affect late penalties.
General Enrollment Period
January 1–March 31 each year, for those who missed their IEP. Coverage begins the month after you enroll.
Open Enrollment (Annual Election)
October 15–December 7 each year, when anyone with Medicare can change Advantage and Part D plans for the following year.
Enrollment dates can change. Always confirm current deadlines with the official Medicare program before making decisions.
What you should know
A concise, durable summary of this coverage area — the facts that hold regardless of market timing or plan availability.
- The page covers Medicare Advantage, Part D, and Supplement plan options.
- SSGI advisors help with timing, enrollment, and coverage decisions.
Frequently asked questions
A note on Medicare
SSGI Benefits is not connected with or endorsed by the U.S. government or the federal Medicare program. Medicare.gov and 1-800-MEDICARE are official federal sources. This page provides general education only; personal eligibility, underwriting, enrollment rights, plan availability, and recommendations require current facts and approved secure processes.
Sources
- Medicare.gov — Medicare Supplement InsuranceOfficial federal information about Medicare Supplement insurance.
- Medicare.gov — Compare coverage optionsOfficial federal tool for reviewing current plan availability by location.
- Medicare.gov — Joining a planOfficial Medicare timing information, including considerations for people working past 65.
About this guidance
Published and maintained by SSGI Benefits, the employee-benefits division of Strategic Sequoia Group Inc. Last reviewed August 24, 2026 using the official sources linked on this page. Carrier availability, eligibility, rates, and recommendations vary by employer and market. This page provides general information and does not constitute legal or tax advice. Meet SSGI leadership · View licensing information.
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