GLP-1 coverage in 2027: open enrollment dates and what to check
Three enrollment windows decide which plan pays for a GLP-1 in 2027. Medicare opens first, on October 15, 2026. The ACA Marketplace opens November 1 and federal employees' Open Season November 9. Each plan can change its drug list for the new year, so the plan that covered Wegovy or Zepbound in 2026 may not in 2027.
The three windows
| Your coverage | Window | New plan starts | Official source |
|---|---|---|---|
| Medicare (Part D and Medicare Advantage) | October 15 to December 7, 2026 | January 1, 2027 | Medicare.gov, Open Enrollment read October 27, 2026 |
| ACA Marketplace (HealthCare.gov) | November 1, 2026 to January 15, 2027 | January 1, 2027 if you enroll by December 15 | HealthCare.gov, dates and deadlines read October 27, 2026 |
| Federal employees (FEHB Open Season) | November 9 to December 14, 2026 | January 1, 2027 | OPM, Open Season read October 26, 2026 |
Four things to check before you pick a 2027 plan
- The drug list. Find Wegovy, Zepbound or the drug you take on the plan's 2027 list, not this year's.
- The use. Some plans cover a GLP-1 for diabetes, sleep apnea or heart risk and not for weight loss alone.
- Prior authorization. Most plans that cover these drugs want your doctor to file first.
- The tier. It sets your copay, and a brand-name GLP-1 often sits on a high one.
By kind of plan
- Medicare Advantage and Part D in 2027: the dates, the second window from January 1 to March 31, and the GLP-1 Bridge, which runs through 2027 outside your plan.
- ACA Marketplace plans in 2027: the dates, the December 15 cutoff for a January 1 start, and the exceptions process if a plan leaves your drug off.
- FEHB Open Season for 2027 and WellCare's Medicare plans for 2027: what those plans cover now and what to look for in the 2027 brochure.
- GLP-1 cash prices in 2027: what changes on January 1 if no plan covers it.
If your 2027 plan will not cover it
Two cash programs to check.
No insurance needed.
- SnagRx$99 a monthcompounded semaglutideCheck price →SnagRx's homepage shows its 12-month prepaid prices first
- yourEra$89 a monthcompounded semaglutideCheck price →
Compare every cash price or get a prior authorization letter.
Why you can trust GLP Chart. Same scoring framework applied to every program, and payment never changes a score. We never remove unfavorable information at an advertiser's request. Pricing is pulled from each program's public-facing page every week.