Medicare Advantage vs. Medigap: Which Plan Saves More?
Quick Answer
Medicare Advantage (Part C) is a private insurance alternative that bundles Part A, B, and D into one plan with a monthly premium (often $0–$50) but network restrictions and annual out-of-pocket maximums. Medigap (supplemental insurance) pairs with Original Medicare to cover copays and deductibles, costs $100–$300+ monthly, and offers nationwide doctor access but no built-in prescription drug coverage. The right choice depends on your health status, budget, and whether you travel frequently.
How Medicare Advantage (Part C) Works
Medicare Advantage is private insurance bundling Parts A, B, and D into one plan. Key features: $0–$50 monthly premium (plus Part B premium), copays per service, annual out-of-pocket max of $8,850 (by law), network-restricted doctors, and often includes dental/vision/hearing. You must use in-network providers except in emergencies. MA works best if you have predictable needs and strong local networks, but watch for plan changes at renewal or relocation.
How Medigap Works
Medigap pairs with Original Medicare to cover copays, coinsurance, and deductibles. Standardized plans (A–N) offer identical benefits nationwide; Plan G is most popular at $120–$280/month. No network restrictions—see any Medicare doctor nationwide. Requires separate Part D enrollment for drugs. Key catch: miss the 6-month initial enrollment window and insurers can deny or charge age-rated premiums. Best for chronic conditions, frequent specialists, and travelers.
2026 Cost Comparison Table
| Factor | Medicare Advantage | Medigap (Plan G) |
|---|---|---|
| Monthly Premium | $0–$50 (usually) | $120–$280+, varies by age/state |
| Annual Deductible | $0–$500 (varies by plan) | $0 (Part B deductible $240 covered by Plan G) |
| Primary Care Visit | $25–$45 copay | $0 after Part B deductible |
| Specialist Visit | $40–$75 copay | $0 after Part B deductible |
| Hospital Stay | Copay per admission ($300–$500) | $0 copay after deductible |
| Annual OOP Maximum | $8,850 in-network (max by law) | No cap; protection varies by plan |
| Prescription Drug Coverage | Usually included (Part D) | Separate Part D enrollment required ($15–$50+/mo) |
| Doctor Network | In-network only (penalties for out-of-network) | Any Medicare-accepting doctor, anywhere |
| Travel Coverage | Limited (out-of-area emergencies only) | Nationwide, unlimited |
| Coverage Guarantee | Changes annually; plan may discontinue | Locked in; insurer cannot drop you or raise rates due to health |
Who Benefits Most from Each Plan
Medicare Advantage: Healthy on fixed budgets, local residents with strong networks, no frequent travel. Use our Medicare Advantage vs. Medigap Calculator to model costs.
Medigap: Multiple specialists, frequent nationwide travelers, those valuing flexibility over low premiums. Fixed, guaranteed rates with zero copays.
Key Gotchas
Medicare Advantage: Doctors leave plans or plans exit areas; prior auth delays care; premiums rise at renewal; out-of-network surprises if using emergency services.
Medigap: Miss the 6-month enrollment window and insurers may deny or charge age-based premiums. Premiums rise with age. Part D is separate and carries a 1% lifetime penalty if missed.
Frequently Asked Questions
Q: Can I switch from Medicare Advantage to Medigap anytime? A: You can switch during the annual Open Enrollment Period (Oct 15–Dec 7), but Medigap insurers may deny you or impose waiting periods if you miss the initial enrollment window. It's best to choose carefully the first time.
Q: Do I pay both Medicare premiums and a Medigap premium? A: Yes. You pay Part B premium to Medicare ($165–$560+/month based on income) and then a Medigap premium to a private insurer. Some MA plans charge $0 or low premiums, but you still pay Part B.
Q: What happens if my Medicare Advantage plan exits my area? A: You have a guaranteed right to switch to another plan or to Medigap, but only during the plan's exit period or annual enrollment. This is a risk worth considering if you live in a rural or competitive market.
Q: Is Part D prescription drug coverage worth it? A: Yes, almost always. Missing Part D enrollment means a 1% monthly lifetime penalty, even if you enroll later. Many low-income seniors qualify for Extra Help subsidies.
Q: Can I have both Medicare Advantage and Medigap? A: No, they are mutually exclusive. You choose one or the other (or Original Medicare alone, though copays add up quickly).
Sources
- Medicare.gov: Medicare Advantage Plans — official CMS tool for comparing local plan options.
- Kaiser Family Foundation: Medicare Advantage in 2026 — comprehensive data on plan enrollment, costs, and trends.
- CMS.gov: Part C (Medicare Advantage) Overview — regulatory standards and out-of-pocket maximum rules.
- National Council on Aging: Medigap 101 — guide to plan types and enrollment windows.
- AARP Medicare Guide 2026 — consumer resources and decision frameworks.