Updated July 2, 2026
Plan G premiums in Michigan run around $133 per month on average, though the spread between carriers can be meaningful. Michigan follows standard federal Medigap rules, and the state's market draws a solid number of competing insurers, which tends to keep prices in check.
FAQs
How much does Medigap Plan G cost in Michigan?
Plan G premiums in Michigan run around $133 a month for most new enrollees, though your exact rate depends on your age, sex, tobacco use and the insurer you choose.
What happens if I apply for Medigap in Michigan after my enrollment window closes?
Outside the 6 month Open Enrollment period, insurers in Michigan can ask health questions and use medical underwriting, which can mean a higher premium or a denied application.
Shopping Plan G in Michigan
Every Plan G sold in Michigan covers the same set of benefits regardless of which insurer issues it. That is the point of federal standardization. Carrier A's Plan G and Carrier B's Plan G pay the same claims in the same situations. The only thing separating them is price and customer service. Michigan's competitive market means you often find meaningful differences between the highest and lowest quotes for the same plan letter, so it is worth getting several estimates before deciding. The Medigap cost calculator can give you an age-adjusted estimate, and the plan comparison tool shows exactly what each letter covers.
Things to Know Before You Enroll in Michigan
Your Medigap Open Enrollment Period is six months long. It starts the month you are 65 or older and your Medicare Part B becomes active. Insurers cannot reject your application or raise your premium for health reasons during this period. After it closes, they can. The open enrollment calculator shows your window's exact dates. If you are still deciding between Medigap and Medicare Advantage, the Medigap vs Advantage calculator lays out the cost difference by your expected healthcare use.