Last reviewed: September 30, 2026.
Direct answer: Look up each prescription on the plan's formulary for the correct plan year. Confirm the drug name, strength, quantity, and your pharmacy. Watch for prior authorization, step therapy, quantity limits, and specialty tiers. HealthCare.gov explains how Marketplace plans cover medications. Medicare drug plans use plan finders and formularies on Medicare.gov. Do not rely on last year's list.
What is a formulary?
A formulary is the plan's list of covered drugs and the rules attached to them. Tiers affect copays. Prior authorization means the plan must approve the drug before it pays. Step therapy can require trying another drug first. Quantity limits cap how much you can fill. These rules are in the plan documents, not in a metal name or a Medicare marketing flyer.
How do I check a Marketplace or employer plan?
| Check | Where to find it |
|---|---|
| Drug on the formulary, by name and strength | Plan drug list (Marketplace: plan details on HealthCare.gov; Medicare: Medicare Plan Finder) |
| Tier and copay or coinsurance | Plan drug list and Summary of Benefits |
| Prior authorization, step therapy, quantity limits | Plan drug list codes (PA, ST, QL) |
| Pharmacy in network, preferred or standard | Plan pharmacy directory |
| Exception process if not covered | Evidence of Coverage or plan documents |
HealthCare.gov prescription guidance is the Marketplace starting point. Search the exact plan ID. If you use a specialty pharmacy, confirm that pharmacy is in network. If you are comparing metal levels, a Gold plan can still exclude or restrict a drug that a Silver plan covers. See Bronze vs Silver vs Gold and the annual checklist at the prescription-cost checklist. This page is the method; that checklist is the annual reminder.
How do I check Medicare drug coverage?
For 2027, Medicare Part D caps out-of-pocket spending on covered drugs at $2,400 a year, up from $2,100 in 2026 (CMS CY2027 Rate Announcement).
Use the Medicare plan tools on Medicare.gov with your drug list and pharmacy. Advantage formularies and stand-alone Part D formularies are different products. Coverage varies by plan. If you change from Advantage back to Original Medicare, you must check the new Part D formulary. See returning to Original Medicare.
What details should I bring to a review?
Drug name, dose, how often you fill, and preferred pharmacy. Include inhalers, insulin, injectables, and mental-health medications. Use the provider and prescription check so those fields are complete. David Huff, a licensed Florida health agent, can help you compare formularies. A directory or formulary search can differ from what the pharmacy charges at fill time.
What if the drug is covered but the pharmacy is not?
Preferred pharmacies, mail-order rules, and 90-day supplies can change what you pay even when the drug is on the formulary. A drug listed as covered can still require a specialty pharmacy. Confirm the fill location, not only the name of the medication.
If you use insulin, inhalers, or injectables, include devices and test supplies on the same list. Plans often treat those items under separate rules. Medicare drug coverage and Marketplace coverage both need that level of detail.
Save a screenshot or PDF of the formulary result with the plan year visible. If the list changes after you enroll, you have a baseline for a coverage exception request.
Common questions
If my doctor prescribes a drug, does every plan have to cover it?
No. Coverage depends on the formulary, medical-exception process, and plan rules. Check before you enroll.
Can I check drugs after I enroll instead?
You can, but changing plans later may require an enrollment period. Checking first avoids a year on a formulary that does not include your medications.
What is the Medicare Part D out-of-pocket limit for 2027?
$2,400 for covered drugs, up from $2,100 in 2026, according to CMS.
What to do next
Print or save the formulary result for each drug on each plan ID you might choose, including dose, quantity limit, and pharmacy. Then enroll only after the list matches care you already use. Call (863) 640-3102 or use Get Help.
Check the formulary before you pick the plan
Bring every prescription and pharmacy. Formulary searches are plan-year specific and can change.
Request a Plan Review Call (863) 640-3102Sources
Formularies, tiers, restrictions, pharmacies, and costs are subject to the applicable plan documents and can change. Confirm with the plan and the pharmacy before you enroll.