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Provider & Drug Lookup
The two questions that decide whether a plan works for you are whether your doctors are in network and whether your drugs are on the formulary at a reasonable tier. Both change every January. Checking them before you enrol prevents the most expensive and most common Medicare mistake.
Why "takes Medicare" isn't enough
On a Medicare Advantage plan, a provider accepting Medicare is not the same as being in that plan's network. Only in-network status matters on an HMO, and out-of-network care on a PPO costs substantially more. On Original Medicare with Medigap, any provider accepting Medicare works — there's no network at all.
What to check for each doctor
- In network for the specific plan and the specific plan year.
- Accepting new patients.
- The hospital they admit to is also in network.
- Any specialist you see regularly, not just your primary care doctor.
What to check for each prescription
- On the formulary at all.
- Which tier — the same drug can differ several-fold between plans.
- Restrictions: prior authorization, step therapy, quantity limits.
- Whether your pharmacy is preferred, standard, or out of network.
Where to look it up
Medicare Plan Compare lets you enter your drugs and pharmacy and compare every plan in your county. Provider directories live on each plan's own site, and they do go out of date — confirming with the practice directly is worth the phone call.
Check again every autumn
Networks and formularies reset each January. A plan that covered your cardiologist last year may not this year, which is the entire reason the October 15 – December 7 Annual Enrollment Period exists. See Medicare.gov.
We'll check it for you
Send us your doctors and your prescription list and we'll verify both against the plans we offer in your county — free, and before you commit to anything. We do not offer every plan available in your area. For a complete list of every plan in your county, use Medicare Plan Compare or call 1-800-MEDICARE.
Questions, answered
How do I know if my doctor takes my plan?
Check the plan's provider directory for the specific plan year and confirm with the practice directly, since directories go out of date. On Original Medicare with Medigap there's no network — any provider accepting Medicare works.
What if my drug isn't on the formulary?
Request an exception with your prescriber's support, switch to a covered alternative, or change plans at the next enrollment period. Checking before you enrol avoids the problem.
Do networks change?
Yes, every January — and a provider can leave mid-year. That's why we re-check your doctors and drugs each autumn during Annual Enrollment.
Sources
- Medicare Plan Compare
- Medicare.gov — Joining a plan
- Medicare.gov — Medicare Advantage health plans
- Medicare.gov — Part D costs
Figures are for 2026 and come from the official sources above. Plan-specific costs vary by county and carrier — confirm yours on Medicare Plan Compare or with a licensed agent.
Talk to a local Medicare advisor
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Content reviewed by Brian Penner, Independent Medicare advisor — no pressure.