Ask the plan about this use of this medicine

Start with the plan’s drug list

Plans call their covered-medicine list a formulary. When a plan agrees to pay before the medicine is filled, that check is called prior authorization.[b]

Ask whether the medicine is on your plan’s list for the reason it is being ordered. Then ask what the person writing the order must send for the plan’s approval.[b]

A medicine may be allowed under Medicare’s rules while your own plan still declines to pay for it.[b]

Medicare has different routes

Weight-loss use remains excluded from the ordinary Medicare Part D drug benefit, as of September 2026.[a]

Medicare’s September 2026 rules allow Part D to pay for a medicine used for another accepted reason, such as diabetes.[b]

Your own plan must still list the medicine and give any needed approval before it is filled.[b]

Check whether the temporary program fits you

Under September 2026 terms, certain weight medicines were available to eligible people through the temporary Medicare GLP-1 Bridge; their monthly copay was $50.[c]

Under the September 2026 terms, the program runs from July 2026 through December 2027 and pays pharmacies separately from ordinary Part D.[c]

Those terms require an eligible Medicare drug plan and a minimum age of 18.[d]

Qualifying coverage can be a separate Part D plan, or Medicare Advantage coverage that coordinates care and includes medicines; some other plan types do not qualify.[d]

Ask your plan whether its type qualifies. Have whoever treats you check your height and weight, diagnoses, and the date you began the medicine.

The program uses body mass index (BMI), a number calculated from height and weight, measured when GLP-1 treatment began.[d]

• At 35 or higher, BMI meets the weight test with no need for the extra health conditions below.[d]
• At 30 or higher, BMI can meet the test alongside certain heart failure, uncontrolled high blood pressure, or kidney disease.[d]
• With BMI at 27 or higher, the test can be met with a past stroke, a previous heart attack, pre-diabetes, or artery disease causing limb symptoms.[d]

For the BMI 30 group, ask whether your diagnosis matches the rules: the specific type “heart failure with preserved ejection fraction,” or kidney disease at stage 3a or later.[d]

The blood-pressure test requires a reading above 140 for the top number or above 90 for the bottom number, despite taking two blood-pressure medicines.[d]

Type 2 diabetes excludes a person from the Bridge, as does sleep apnea that is moderate or severe; these uses go through ordinary Part D. Sleep apnea means breathing stops repeatedly during sleep.[d]

Moderate or advanced liver scarring in a particular form of fatty liver disease is another exclusion; not every fatty liver diagnosis excludes you.[d]

Ask the person treating you to compare the exact liver diagnosis in your record with Medicare’s terms.

A prescription to reduce the risk of a major heart or blood-vessel event also goes to the Part D plan.[d]

If your GLP-1 medicine was paid through Part D during 2026, the Bridge is unavailable to you in that same year, 2026.[d]

A medicine order and approval before filling are required, along with ongoing food and activity changes.[d]

Under September 2026 terms, the Bridge’s $50 payment is left out when counting your own spending toward the annual Part D limit.[c]

Keep the coverage answer with the budget

• Is this exact product covered for the proposed use?
• What approval or records are needed?
• How much is my share at the pharmacy?
• What would a later refill cost?
• What happens if the request is declined?

Bring the plan’s answer to the person treating you. Ask about other treatment options as part of the same discussion.