Short answer up top, then the exact rule. Here's what Original Medicare does and doesn't cover for a continuous glucose monitor (CGM) in 2026 — and where a Medicare Advantage plan can fill the gap.
Quick answer: Yes, if you qualify. Part B covers a continuous glucose monitor as durable medical equipment when your doctor orders one and you take insulin or have a history of problem low blood sugar (hypoglycemia). After the Part B deductible you pay 20% of the Medicare-approved amount for the monitor and sensors.
Medicare Advantage (Part C) plans cover CGMs and sensors too, but through their own DME suppliers and cost-sharing, often with prior authorization. Use an in-network supplier and confirm the copay and any quantity limit before you order.
Anyone on Medicare managing diabetes with insulin, or with a history of dangerous low-blood-sugar episodes. The things to get right: a doctor's order, meeting the insulin-or-hypoglycemia rule, device training, and using a Medicare-enrolled supplier that accepts assignment.
See the current Part A, Part B, and Part D numbers — premiums, deductibles, and the new drug cap — in one place. Free, no signup.
See 2026 Medicare Costs →Medicare covers therapeutic CGMs as durable medical equipment when you meet the requirements — a doctor's order plus using insulin or having a history of problem low blood sugar. Coverage is by category, not brand; ask a Medicare-enrolled DME supplier which models they carry and what you'll pay.
Not necessarily. Medicare may cover a CGM if you take insulin, or if you have a documented history of problems with low blood sugar (hypoglycemia). Your provider has to evaluate you and confirm you meet the rule before ordering.
Coverage gaps in Original Medicare — like a continuous glucose monitor (CGM) — are exactly what a Medicare Advantage or Medigap plan is meant to fill. Our free Enrollment Finder shows the window you can switch in, and the guide library walks through the trade-offs. This page is free to share with anyone weighing their options.
Open the Enrollment Finder →This answer is based on U.S. government Medicare coverage rules: