Medicare Part D Deep Dive

Part D formularies are organized into tiers — typically 5: preferred generic, generic, preferred brand, non-preferred brand, and specialty. …

The coverage gap (donut hole) has been largely eliminated. Under the Inflation Reduction Act, Part D enrollees now have a $2,000 annual out-…

Medicare caps insulin copays at $35 per month per covered insulin under all Part D plans and for insulin used with a covered insulin pump un…

Since 2023, all ACIP-recommended vaccines under Part D — including Shingrix, Tdap, Hepatitis A, and RSV — are covered at $0 cost.…

Extra Help pays Part D premiums, deductibles, and copays for enrollees with limited income and resources. Eligibility expanded in 2024 — inc…

If you go 63+ days without creditable drug coverage after becoming eligible, you pay a permanent penalty of 1% of the national base benefici…

Part D plans require prior authorization for certain drugs — typically expensive biologics, controlled substances, or drugs with safety conc…

Step therapy requires trying lower-cost medications before the plan covers more expensive ones. Your doctor can request a step therapy excep…

Quantity limits cap how much medication you can get per fill — typically based on FDA labeling or safety guidelines. Your doctor can request…

Most Part D plans offer mail-order at lower cost than retail for 90-day fills of maintenance medications.…

Preferred pharmacies in your Part D plan offer lower cost-sharing than standard in-network pharmacies. The distinction is most relevant on T…

Specialty tier drugs treat complex or rare conditions (MS, cancer, HIV, hepatitis) and have drug costs above a set threshold. Cost-sharing i…

The Inflation Reduction Act allows Medicare to negotiate prices for select high-cost Part B and Part D drugs. The first 10 negotiated prices…

Standalone Part D attaches to Original Medicare; MA-PD is Medicare Advantage with drug coverage bundled. Pricing, formularies, and utilizati…

Part D appeals have five levels, starting with a plan redetermination request. You can request exceptions for non-formulary drugs or lower c…

You can switch Part D plans during AEP (Oct 15 – Dec 7), during MA-OEP (Jan 1 – Mar 31 for MA-PD changes), or with a Special Enrollment Peri…

VA drug coverage is considered creditable for Part D. You can maintain VA coverage without penalty even if you skip Part D, or have both to …

Part D covers self-administered prescription medications including most brand, generic, and specialty drugs. Excluded categories include ove…

Creditable drug coverage is as good as or better than standard Part D. Creditable coverage from an employer, VA, or TRICARE lets you delay P…

Medicare.gov Plan Finder lets you enter your ZIP code and full drug list to compare Part D premiums, deductibles, and total annual cost acro…