A non-government resource built from CMS public data
CARDIZEM CD 360 mg Capsule, Coated, Extended Release
Also known as Diltiazem Hydrochloride. Coverage in California (CMS PDP Region 32).
Not on any stand-alone Part D formulary in California
None of the 12 stand-alone Part D (PDP) plans in CMS PDP Region 32 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 CA lists it either