For agents
How to check if a drug is covered by a Part D plan
Most bad Part D recommendations are not pricing mistakes. They are coverage mistakes — a drug that was not on the formulary, or was covered with a restriction nobody read. Here is the order to work in.
1. Get the medicine list exactly right first
Coverage is decided per drug name, strength, and quantity. A missed strength or a generic swapped for a brand changes the tier and the price. Work from the pharmacy printout, bottle photo, or plan statement rather than memory, and confirm the strength and how many the client takes per month.
2. Match the county, not just the state
Stand-alone Part D plans are offered by county service area. Two clients in the same state can have different plan lists and different premiums, so the ZIP code and county come before any coverage check.
3. Look the drug up on the plan's formulary
Each plan publishes a formulary listing every covered drug and its tier. If a drug is missing from the formulary, the plan does not cover it and the client pays full price unless an exception is granted.
4. Read the restriction flags, not only the tier
A covered drug can still be blocked in practice. Prior authorization means the prescriber must justify it, step therapy means a cheaper drug must be tried first, and quantity limits cap how much is dispensed per fill. These flags cause most of the January surprises clients call about.
5. Price it at the pharmacy the client actually uses
The same drug on the same plan costs different amounts at a preferred retail pharmacy, a standard retail pharmacy, and mail order. Check the pharmacy the client will really walk into, then compare against the cheaper alternatives before advising a switch.
6. Total the year, not the month
Premium plus deductible plus the client's share across all their fills for the year is the number that decides the recommendation. A plan with a low premium can lose badly once one brand-name drug sits on a high tier.
Doing it for a whole book
The six steps above are fine for one client and impossible for four hundred. That is the part RxPlanMatch automates:
- Every medicine on the list is checked against every stand-alone Part D plan in that county, not one plan at a time.
- Tier placement and restriction flags come from the official plan and formulary files loaded into the system.
- Preferred retail, standard retail, and mail-order costs are shown side by side so the pharmacy question is answered in the same view.
- The client and the agent receive the same result, with a green button that opens the recommended plan on Medicare.gov.
Important notice
RxPlanMatch is not a government website and is not Medicare.gov. Costs shown are estimates for comparison based on the official plan files loaded into the system. For every available plan, visit Medicare.gov, call 1-800-MEDICARE, or contact your local SHIIP or SHIP office.
Check a real drug list — 10 free comparisons.
Start freeMore reading: finding the best plan for a drug list and switching a plan outside of AEP.