Last updated: May 17, 2026

🏥 Original Medicare vs Medicare Advantage: Which to Pick?

📊 Side-by-Side Comparison

What is Original Medicare?

Original Medicare is the federal program available to all US citizens age 65+ (and some disabled younger adults). It consists of Part A (inpatient hospital, hospice, skilled nursing — usually $0/mo if you paid Medicare taxes 40+ quarters) and Part B (outpatient, doctor visits — $185/mo standard in 2026, higher for high-income earners via IRMAA).

The strength: any doctor or hospital that accepts Medicare (most do) is in-network. No referrals, no prior authorization, complete freedom. The gap: 20% coinsurance on most Part B services with NO annual out-of-pocket maximum — a $200K cancer year could cost $40K+ in 20% co-insurance alone. This is why 85%+ of Original Medicare enrollees buy a Medigap (supplement) policy ($150-$300/mo) that fills the 20% gap. They also need separate Part D drug coverage ($30-$80/mo). All-in, Original + Medigap + Part D runs $365-$565/mo in 2026.

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What is Medicare Advantage?

Medicare Advantage (Part C) is private health insurance sold by approved insurers (Humana, Aetna, UnitedHealthcare, Anthem, Kaiser, etc.) that takes the place of Original Medicare. The government pays the insurer a per-member-per-month rate, and the insurer takes on the risk and benefits design. Most MA plans bundle Part A, Part B, and Part D (drug coverage) into one premium that ranges $0-$200/mo — often dramatically less than Original + Medigap + Part D.

The catch: networks. HMO plans require staying in-network (no out-of-network coverage except emergencies). PPO plans allow out-of-network at higher cost. Prior authorizations are common for many procedures. The standout benefit: an annual out-of-pocket max (required, capped at $9,350 in-network for 2026) that Original Medicare lacks. MA plans also typically include extras Original doesn't cover: dental, vision, hearing aids, gym memberships, transportation to appointments, even meal delivery post-hospitalization.

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🔑 Key Differences

• Network: Original = any Medicare doctor nationwide. Advantage = limited HMO/PPO network.
• Monthly cost: Original + Medigap + Part D ~$400-$550. MA often $185-$385 total.
• Out-of-pocket max: Original has NONE. Advantage required (max $9,350 in-network 2026).
• Extras (dental/vision/hearing): Original excludes. Advantage usually includes.
• Prior authorization: Rare on Original. Common on Advantage.
• Switching back: You can switch from Advantage back to Original during annual enrollment, but you may need underwriting for Medigap (could be denied or face higher premium).
• Specialist access: Original = direct access. Advantage HMO = often need referral.

When to Use Original Medicare

• You travel frequently or split time between two states (snowbird).
• You have a complex chronic condition where you've built relationships with specific specialists.
• You want zero prior-authorization friction.
• You can afford $400-$550/mo total premiums for predictability + flexibility.

When to Use Medicare Advantage

• You stay in one geographic area with strong plan networks.
• You're generally healthy and want to minimize monthly premiums.
• You value extra benefits (dental, vision, hearing) Original doesn't cover.
• You're comfortable with HMO/PPO network rules and occasional prior auth.

⚖️ Pros and Cons

💡 Real-World Examples

❓ Frequently Asked Questions

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