Definition. An MA-PD is a Medicare Advantage plan that includes Part D prescription drug coverage. Your hospital, medical and drug coverage come from one plan, so you don't join a separate stand-alone Part D plan.
What it means
A Medicare Advantage plan covers everything Part A and Part B cover. When it also includes Part D drug coverage, Medicare calls it a Medicare Advantage Prescription Drug plan (MA-PD). The drug coverage follows the same Part D rules as a stand-alone plan: a formulary (list of covered drugs), the yearly out-of-pocket cap ($2,100 in 2026), the insulin cap ($35 a month for each covered insulin), and the Medicare Prescription Payment Plan.
If you're in a Medicare Advantage HMO or PPO and you join a stand-alone Part D plan, Medicare disenrolls you from the Medicare Advantage plan. If you choose a Medicare Advantage plan without drug coverage and have no other creditable drug coverage, you could owe a Part D late enrollment penalty later.
In Oregon
Medicare Advantage plans, with and without drug coverage, differ by county. Check the drugs you take against each plan's formulary before you enroll; you can see plans for your ZIP code on PlanMatch or use Medicare.gov's Plan Finder. If you have OHP and Medicare, OHP doesn't pay for drugs Part D covers, so you need Part D drug coverage through an MA-PD or a stand-alone plan.
Sources
- Medicare.gov — What Medicare drug coverage (Part D) covers
- Medicare.gov — Joining a health or drug plan
- Oregon Health Authority — OHP and Medicare
Frequently asked questions
Can I add a stand-alone Part D plan to my Medicare Advantage plan?
Usually not. If you're in a Medicare Advantage HMO or PPO and join a stand-alone drug plan, you'll be disenrolled from the Medicare Advantage plan and returned to Original Medicare. Exceptions are some Private Fee-for-Service plans without drug coverage and Medical Savings Account plans.
Does the Part D out-of-pocket cap apply to an MA-PD?
Yes. The yearly cap on what you pay for covered Part D drugs ($2,100 in 2026) applies to the drug coverage in an MA-PD just as it does to a stand-alone drug plan.
Medicare in your Oregon county
Plans, local agents and help, county by county: Multnomah · Washington · Clackamas · Lane · Marion · Jackson · Deschutes · Linn · Douglas · Yamhill · Benton · Polk · Josephine · Umatilla · Klamath · Coos · Columbia · Lincoln · Clatsop · Malheur · All 36 counties →
