A Physician's Structural Framework
Clear, unbiased guidance to help you choose between Original Medicare + Medigap and Medicare Advantage — from a surgeon who learned the hard way helping his own mother.
Education-first. No pressure. No plan recommendations. No sales agenda.
The Decision
Every American turning 65 faces the same fundamental choice. Understanding the structural difference between these two paths is the starting point of every smart Medicare decision.
The traditional structure. Part A covers hospital care; Part B covers outpatient and physician services. A Medigap (supplemental) policy fills most of the cost gaps, and a standalone Part D plan covers prescriptions. You choose your own doctors, specialists, and hospitals — nationwide, without referrals.
This structure is predictable, portable, and preserves maximum flexibility — particularly important if you travel, have complex health needs, or value long-term optionality.
Learn more about this path →An alternative structure delivered by private insurance companies. Combines Part A, Part B, and usually Part D into one plan. Often has lower premiums and includes extra benefits like dental and vision — but access is network-based, and prior authorization requirements are common.
This structure can work very well — but the tradeoffs around access, flexibility, and long-term costs deserve careful analysis before enrolling.
Learn more about this path →The Framework
Most people pick a Medicare plan based on premium alone. That's a mistake. The right decision requires analyzing five structural dimensions — each of which can significantly affect your long-term outcomes.
See the Full Model in the Decision Brief →Free PDF — covers all five dimensions in depth
Premium vs. out-of-pocket exposure — how each path handles costs in routine years vs. high-utilization years.
Who you can see, how you get there, and what it takes to access specialists and out-of-network care.
How your coverage holds up if you travel, spend time in multiple states, or plan to move.
Your realistic appetite for prior authorizations, referrals, appeals, and claims management.
What your switching options look like in 5–10 years — and what the underwriting reality means for your future flexibility.
Now Available
The complete structural guide to one of the most consequential healthcare decisions you'll ever make — written by a physician who wished it had existed when he needed it most.
The Medicare
Decision
Michael Koeplin, MD, FACS
Now AvailableFree & Paid Tools
Four interactive tools — designed to educate, not sell. No plan recommendations. No commissions.
See All Four Tools →Ten questions across five dimensions. Identifies your structural priorities, flags risk areas, and produces a personalized framework summary.
Take the assessment →Enter your local premiums and health assumptions. See total 10-year costs across three utilization scenarios for both Medicare paths.
Open the modeler →A physician-authored report built from your specific profile — health, finances, state, and timeline. All five dimensions. Printable.
Start my report →Latest
Deep Dive
The enrollment windows are unforgiving. The difference between the two paths is structural, not superficial. And the decision you make at 65 has long-term consequences that are rarely explained clearly.
Analysis
Medicare Advantage isn't a bad product — it's a different structural arrangement. Whether it works for you depends on factors most people never evaluate before enrolling.
Basics
Plan G and Plan N are the two most popular Medigap options for new enrollees. They're similar — but their differences matter depending on your utilization and risk tolerance.
Get Started
Download the free Medicare Decision Brief — a structured framework designed to help you understand your options, evaluate your priorities, and make a confident decision.
Download the Free Decision BriefNo pressure. No sales pitch. Just clear, honest guidance.