Original Medicare vs. Medicare Advantage Comparison Tool
Figures last verified against official sources in July 2026.
Quick Answer
Original Medicare offers unrestricted nationwide provider access with zero prior authorization requirements when paired with Medigap. Medicare Advantage offers lower upfront premiums ($0/mo plan fees) but imposes local HMO/PPO doctor networks, prior authorization delays, and up to $8,850/year in out-of-pocket copays.
Seniors turning 65 are bombarded with TV commercials pushing $0-premium Medicare Advantage plans. Many don't realize the trade-offs in doctor networks and treatment approvals until they get sick. We built this independent comparison tool to show both options side-by-side without insurance broker bias.
- Adults turning 65 deciding between Original Medicare + Medigap vs Medicare Advantage.
- Seniors wanting a clear comparison of prior authorization rules and out-of-pocket maximum caps.
- Travelers who need to verify nationwide doctor access rules.
Original Medicare vs. Medicare Advantage Comparison Tool
Compare estimated annual costs, doctor network rules, prior authorization restrictions, and out-of-pocket risk side-by-side.
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How to Use This Comparison Tool — Step by Step
- Select medical care needs. Choose low, moderate, or high based on your health history.
- Select doctor preferences. Indicate if you require nationwide provider freedom without referrals.
- Check travel & Medigap options. Indicate if you travel out-of-state or want Medigap Plan G pricing included.
- Click "Compare Coverage Options." Review the side-by-side comparison table.
💡 Pro Tip
Your Medigap Open Enrollment Period (the 6-month window starting the month you turn 65 and enroll in Part B) is your ONLY guaranteed right to buy any Medigap plan without health questions or pre-existing condition exclusions. Learn more at medicare.gov/supplements-other-insurance.
Official Government Sources Used in This Tool
| Source Name | What We Used It For | Direct Link |
|---|---|---|
| CMS Medicare & You Handbook 2026 | Original Medicare vs Medicare Advantage comparison rules, network definitions, and OOP cap limits ($8,850) | Medicare & You 2026 |
Seniors Audit is an independent educational platform. We are not affiliated with, endorsed by, or connected to CMS or any insurance company.
Frequently Asked Questions About Medicare Options
What is the main difference between Original Medicare and Medicare Advantage?
Original Medicare (Parts A & B) is administered directly by the federal government and allows you to see any doctor or hospital nationwide that accepts Medicare without referrals. Medicare Advantage (Part C) is sold by private insurance companies that restrict you to local doctor networks (HMO/PPO) and require prior authorization for many treatments.
Why are many Medicare Advantage plans advertised with a $0 monthly premium?
While a Medicare Advantage plan may charge $0 in additional plan premium, you MUST still pay your monthly Medicare Part B premium ($202.90 in 2026). The insurance company receives a monthly payment directly from the federal government for managing your care.
What is prior authorization in Medicare Advantage plans?
Prior authorization is a requirement where your doctor must obtain approval from the private insurance company before performing certain procedures, ordering MRI/CT scans, or admitting you to a skilled nursing facility. Original Medicare rarely requires prior authorization.
Can I switch from Medicare Advantage back to Original Medicare?
Yes. You can switch during the Annual Open Enrollment Period (Oct 15 – Dec 7) or the Medicare Advantage Open Enrollment Period (Jan 1 – March 31). However, if you want to add a Medigap policy after switching back, you may be subject to medical underwriting unless in a guaranteed issue right window.
Which option is better if I travel frequently or live in multiple states?
Original Medicare with a Medigap policy is significantly better for frequent travelers because coverage is valid nationwide with any Medicare-participating provider in all 50 states.
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About This Educational Estimate: This tool is for educational purposes only. Seniors Audit uses the official formulas published by the relevant government agency, but results are estimates based on the information you entered. Rules, rates, and eligibility thresholds change annually and vary by individual circumstance.
If you have Medicare questions, a free SHIP counselor in your state can review your specific situation at no cost — find yours at shiphelp.org.
Seniors Audit is independent and not affiliated with any government agency or insurance company. We are not affiliated with, endorsed by, or connected to any government agency, insurance company, or financial services firm. All calculations use the official formulas and current figures published by the agencies listed above. We do not receive payment for referrals, leads, or any action taken by visitors to this site.