How to Review Doctors and Prescriptions for a Parent or Spouse

Doctors and prescriptions are not details. They are central to whether coverage works. Here is how to verify both for someone you are helping.

When helping someone with Medicare, the two most important things to verify are: are their doctors in-network, and are their prescriptions on the formulary at a reasonable tier? Both can change without notice. Both are reasons coverage stops working — usually with no warning until a bill arrives. This article walks through how to build the lists, how to verify each item against the current plan, and what to do when something has shifted.

How this applies to you

If you are starting from scratch. Begin by listing every doctor your parent has seen in the last 18 months, and every prescription on their current pill bottles. Do not rely on memory.

If you have the lists but have not verified them in a while. Verify before the next Annual Enrollment Period. Networks and formularies change every January. The plan that worked last year may not work next year.

If a doctor or prescription has already gone “out of network” or “off formulary.” This article tells you what to do next, and routes to the appeal article and the After You Choose hub. There is usually a path; it just is not obvious.

If your parent has chronic conditions or takes specialty drugs. Verification is not optional. The cost of an unverified specialty drug can run into thousands of dollars per fill.

The short answer

To verify coverage works for someone you are helping: build a current list of every prescription (with dosage, frequency, and pharmacy) and every doctor (with name, specialty, and the hospital they are affiliated with). Then cross-check each item against the current plan’s formulary and network — using the plan’s tools, the Medicare Plan Finder, and a direct call to the provider or pharmacy. Verify twice. Networks change mid-year, formularies change at year boundaries, and the plan’s own website is sometimes wrong.

Building the prescription list

The first source of truth is not memory and not the doctor’s records — it is the current pill bottle in the medicine cabinet.

For each prescription, capture:

• Brand or generic name exactly as printed on the label
• Dosage (e.g., 10 mg, 50 mg)
• Frequency (e.g., once daily, twice daily, as needed)
• Quantity per fill (30 tablets, 90 tablets, etc.)
• Pharmacy filling it (chain name and location)
• Prescribing doctor (often on the label)

A few things to look for as you build the list:

• Brand vs. generic. Some prescriptions are written for the brand even when a generic exists. The cost difference is sometimes large. Verifying this is worth a call to the doctor.
• Specialty medications. Drugs for conditions like rheumatoid arthritis, multiple sclerosis, hepatitis C, certain cancers, and some psychiatric conditions are often dispensed only through specialty pharmacies, not the regular retail pharmacy. They are usually on a higher tier with higher cost share.
• Recently changed prescriptions. If a medication was switched in the last six months, write down the old one too. If the formulary later requires going back to the old one (through prior authorization or step therapy), you will need that history.
• Anything taken “as needed.” Inhalers, nitroglycerin, anxiety medications, pain medications. They are easy to forget on a list but they count.
• Anything bought over-the-counter that is sometimes covered (some plans cover certain OTC items under supplemental benefits in MA plans). Worth noting separately.

The list should be on one page. A simple table works. Keep it updated.

Verifying prescriptions against the plan

Once the list exists, check each item against the plan’s drug formulary.

For someone on a Medicare Advantage plan with drug coverage (MA-PD): the formulary is part of the plan. Find it on the plan’s website, in the Evidence of Coverage, or by calling the plan.

For someone on a standalone Part D plan with Original Medicare: the formulary is the Part D plan’s. Same locations.

For someone with Original Medicare and no Part D: they have no drug coverage through Medicare. They may have it through an employer, retiree plan, VA, or other source — verify with that source.

For each prescription, you are checking three things:

1. Is it on the formulary at all? Some drugs are simply not covered by the plan. If it is not on the formulary, the plan will pay nothing — but the plan’s exception request process may cover it in specific cases.

2. What tier is it on? Tiers are numbered (Tier 1, Tier 2, Tier 3, Tier 4, Tier 5). Lower tier = lower cost share. A drug on Tier 1 might be $0 or a few dollars; the same drug on Tier 4 might be $90 or more. Tier placement changes between plan years.

3. Are there restrictions? The three most common: - Prior authorization (PA) — the plan requires approval before filling. The doctor’s office handles this, but it takes time and is sometimes denied. - Step therapy (ST) — the plan requires trying a lower-tier drug first before approving the higher-tier one. - Quantity limits (QL) — the plan limits how much can be dispensed in a fill or per month.

Note any restrictions on your list. They affect whether the prescription will actually get filled smoothly.

Where to look up formulary status:

• The plan’s online formulary tool. Most plans have one. They are not always current, but they are the fastest first check.
• The Medicare Plan Finder at Medicare.gov/plan-compare. Enter zip code, drugs, and pharmacy; the tool returns formulary status, cost estimates, and tier placement for all plans in the area. Useful both for the current plan and for comparing alternatives during AEP.
• The plan itself, by phone. When the online tool is unclear or the drug is unusual, call the plan. Get the answer in writing if possible (email confirmation or screenshot of the reference number).
• The pharmacy. The pharmacist can usually tell you in 60 seconds whether a drug is covered, the tier, and the cost. This is sometimes the fastest check for a single item.

When a prescription has moved off-formulary or to a higher tier: the next step is the exception-request process. The doctor writes a letter of medical necessity; the plan reviews. The article What to Do If a Drug Is Not Covered or Costs More Than Expected in the After You Choose hub walks through this in detail.

Building the doctor and provider list

Doctors are the second half of the coverage question. A plan’s network determines whether a given doctor is covered, and at what level.

For Original Medicare: any doctor or provider who “accepts Medicare assignment” is in-network. This includes the vast majority of doctors but not all. Some specialists, particularly in larger metropolitan areas, do not accept Medicare at all.

For Medicare Advantage: the plan has a defined network of doctors, hospitals, and providers. In-network = lower cost share. Out-of-network can mean higher cost share, no coverage at all, or partial coverage depending on the plan type (HMO vs. PPO).

For each doctor, capture:

• Full name as on the office door
• Specialty (primary care, cardiology, oncology, etc.)
• Practice or group name if part of a larger organization
• Hospital affiliations — which hospital(s) they admit to
• Whether your parent sees them regularly or occasionally
• Last visit date (rough — last month, last year, two years ago)

The hospital affiliation matters more than people realize. Many MA plans have hospital networks that are narrower than their doctor networks. A doctor who is in-network may admit to a hospital that is not.

Verifying doctors against the plan

For Original Medicare: call the doctor’s office and ask: “Does Dr. X accept Medicare assignment?” Most do. If they accept Medicare but do not accept assignment, they can charge up to 15% above the Medicare-approved amount (the “limiting charge”). Some doctors do not accept Medicare at all — usually identified as “private contracting” doctors.

For Medicare Advantage: verify in three places, in this order:

1. The plan’s online provider directory. Search by doctor name and specialty. This is the official source, but it is sometimes out of date — doctors leave networks throughout the year.

2. A direct call to the doctor’s office. “I’m calling to verify that Dr. X is in-network for [plan name] for plan year 2026.” The office staff can usually confirm. If they say “We’re not sure” or “We were in-network last year” — that is a yellow flag worth a deeper check.

3. A direct call to the plan. Ask the plan to confirm the doctor’s network status. Get the reference number and the date.

The triple-check matters because each source is sometimes wrong. Plan directories lag. Office staff sometimes do not know about a contract change. The plan sometimes has incomplete records. Confirming in three places is annoying. It is also how you catch the case where coverage is about to silently stop working.

When something has changed

A doctor goes out of network. A drug moves tiers or off formulary. A hospital drops out of the plan. These changes happen, sometimes mid-year, sometimes at year boundaries.

Mid-year provider exits. Plans are required to maintain network adequacy. When a provider leaves the network mid-year, the plan must notify affected members and arrange for continuity of care, typically allowing a transition period. The exact rules vary; the plan’s member services line is the first call. If continuity of care is being denied unreasonably, SHIP and the state department of insurance can sometimes help.

Formulary changes mid-year. Plans can remove drugs or change tier placement mid-year in some circumstances, but they must provide notice. Members who are stable on the medication can usually continue at the prior cost until the end of the plan year. The exception request process is available for ongoing coverage.

Year-boundary changes. Networks and formularies can change every January 1. The Annual Notice of Change (ANOC) lists these changes for the upcoming year. Reviewing the ANOC in October — before AEP closes on December 7 — is the helper’s job. If the changes are significant enough, AEP is the window to switch plans.

The After You Choose hub covers what to do when a drug is denied or a provider is no longer covered. The reference page /resources/medicare-appeal-timeframes/ covers appeal windows.

What to bring to the doctor’s office

A small operational note. When the helper accompanies the person to an appointment, bringing the current document folder makes the visit substantially more efficient. Specifically:

• The Medicare card and plan card. Office staff sometimes ask.
• The current prescription list. Doctors often ask for medication reconciliation; having the list prevents the slow process of trying to remember.
• The hospital affiliation list if the visit might result in a referral or admission. “If you refer her to a specialist, please confirm they take her plan, and if she may need to be admitted, please use [in-network hospital].”
• Notes from prior visits if relevant.

The visit goes faster. The decisions are better. The follow-up calls are fewer.

Annual review timing

The right time to do a full doctor and prescription review is October — after the ANOC arrives but before AEP closes December 7.

A short October checklist:

• Confirm the prescription list is current. Update for anything new.
• Confirm the doctor list is current. Add or remove based on the last 12 months.
• Run the Medicare Plan Finder with the current list against the current plan, and against any plan being considered.
• Read the ANOC carefully, noting any formulary, network, or cost changes.
• If anything significant has changed, get a SHIP appointment by mid-November at the latest.
• Make a decision by Dec 7 if a change is needed. Do not let the window close.

This October-through-December rhythm is the single most important annual habit for a helper. It catches problems before they happen.