A non-government resource built from CMS public data
CARDIZEM LA 420 mg Tablet, Extended Release
Also known as Diltiazem Hydrochloride. Coverage in New Mexico (CMS PDP Region 26).
Not on any stand-alone Part D formulary in New Mexico
None of the 11 stand-alone Part D (PDP) plans in CMS PDP Region 26 list this drug. On one of those plans the patient would pay the full retail price, or you would need a formulary exception.
Medicare Advantage plans
Medicare Advantage plans carry their own formularies, separate from stand-alone Part D, and are sold county by county. Pick a county to see every Medicare Advantage drug plan there that covers this drug.
No Medicare Advantage drug plan in NM lists it either