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Medicare drug coverage help
Last updated: 22 September 2026
If a Medicare plan says you must try another medicine before it will cover the drug your prescriber ordered, you may be dealing with step therapy. That pharmacy rejection or plan message is often not the end of the case. The important next step is to find out which Medicare benefit is involved and ask for the correct formal decision.
Bottom Line
For a Medicare Part D drug, ask the plan for a coverage determination and a step therapy exception. Your prescriber should explain why the required first drug has failed, is likely to be less effective, or could cause harmful effects. For a Medicare Advantage Part B drug given in a clinic or office, ask for an organization determination. If waiting could seriously harm your health, ask for an expedited review.
Need Help Right Now?
If you may run out of medicine or miss an important infusion, injection, cancer treatment, seizure drug, breathing medicine, or other time-sensitive therapy, call the prescriber and the plan today. Do not stop, split, switch, or substitute medicine on your own.
- Ask the pharmacist or plan to read the exact reject or denial reason.
- Ask whether the drug is being handled under Part D or the Medicare Advantage Part B medical benefit.
- Ask the prescriber to send the medical support the same day.
- If delay could seriously harm your life, health, or ability to regain maximum function, ask for an expedited decision. Medicare explains the fast-request rule in its drug plan appeals guidance.
Start Here
- Find the coverage type. Ask, “Is this a Part D pharmacy drug or a Medicare Advantage Part B drug?”
- Get a formal case started. A pharmacy rejection by itself may not be the formal coverage decision that starts appeal rights. CMS says a Part D step-therapy dispute can be handled through a coverage determination.
- Get prescriber support. For a Part D step therapy exception, CMS requires a supporting statement from the prescriber. See the official Part D exceptions rules.
Which Path Fits Your Drug Problem?
| Where it happens | Likely Medicare route | Best first move |
|---|---|---|
| Retail or mail-order pharmacy | Part D drug benefit | Ask for a coverage determination and step therapy exception. |
| Medicare Advantage plan with drug coverage | Usually Part D if the drug is filled at a pharmacy | Ask the plan which benefit and case type applies. |
| Doctor’s office, clinic, or infusion center | May be a Medicare Advantage Part B drug | Ask the provider or plan for an organization determination. |
| Original Medicare plus a separate drug plan | Part D for pharmacy drugs; Original Medicare rules for Part B | Do not assume one appeal process covers both. |
| You already paid cash | Payment or reimbursement request | Keep the receipt and ask how to file for repayment. |
What Has Changed
- CMS issued updated Parts C and D appeals guidance effective July 6, 2026. This guide now reflects that current guidance, including the Medicare Advantage Part B drug decision and appeal timeframes. See the July 2026 CMS update.
- The helper paperwork has been clarified. Someone who will act for you in an appeal generally needs the CMS-1696 representative form or a conforming written appointment. The CMS-10106 form is only for allowing 1-800-MEDICARE to disclose personal health information.
- The guide now makes a key practical point clearer: a pharmacy rejection is not always a formal denial. Ask the plan for a coverage determination so you have a decision you can appeal.
What Step Therapy Means
Step therapy is a type of prior authorization. A drug plan may require you to try a preferred or lower-cost drug first before it covers the drug your prescriber wants. Medicare says plans may use rules such as prior authorization, step therapy, and quantity limits. Its drug plan rules explain each one.
Step therapy does not mean your prescriber made a mistake. It also does not always mean the requested drug is permanently excluded. For Part D, you or your prescriber can ask the plan to waive the step rule through an exception.
Keep the coverage problem separate from the price problem. A drug may be covered but expensive, or it may be blocked by a plan rule. If cost is the main problem, see GFS guidance on prescription cost help and Medicare Extra Help.
Part D: Ask for a Step Therapy Exception
For a Part D pharmacy drug, a request to waive step therapy is generally a formulary exception. CMS says a formulary exception can be used to ask a plan to waive a utilization-management rule such as step therapy, prior authorization, or a quantity limit.
A good request addresses the plan’s exact required alternative. The prescriber should explain why the required drug has already been ineffective, is likely to be less effective, or is likely to cause adverse effects. CMS allows the supporting statement to be verbal or written, although a plan may require written follow-up.
Important: At the pharmacy, ask for the Medicare drug coverage notice if the prescription cannot be filled as written. Then contact the plan. CMS’s current appeals guidance says presenting a prescription at the counter does not automatically become a formal coverage determination unless the plan treats it as one. That is why “please open a coverage determination” are useful words.
If the exception is approved, CMS’s 2026 appeals guidance says the plan generally cannot make you request approval again for refills during the rest of that plan year while you stay enrolled, the prescriber continues the drug, and the drug remains safe for your condition. Do not assume the approval automatically carries into a new plan year.
Medicare Advantage Part B Drugs
Some drugs are covered under Part B because a doctor or other professional gives them in an office, clinic, or infusion center. In a Medicare Advantage plan, the plan may use step therapy for certain Part B drugs. These cases use the Part C organization-determination and appeal process, not the Part D exception process.
Federal regulation at 42 CFR 422.136 says a Medicare Advantage Part B step-therapy program can apply only to new administrations of Part B drugs and must use at least a 365-day lookback period. If you have already been receiving the drug, tell the provider and plan when your last administration occurred.
CMS also states that a plan decision on prior authorization or another utilization-management rule, including step therapy for Part B drugs, is an initial determination and is appealable. The official organization determination page explains who may request a decision.
If the issue is a Medicare Advantage denial, GFS has a separate guide to Medicare Advantage appeals.
What the Prescriber Should Send
The strongest support is specific. “Patient needs this drug” may not answer the plan’s criteria. Ask the prescriber to address the required step drug by name and explain the medical reason the plan should waive the rule.
| Information | Why it matters |
|---|---|
| Requested drug, dose, and diagnosis | Connects the request to the exact prescription and condition. |
| Required drugs already tried | Shows whether the plan’s first step has already failed. |
| Dates, doses, and results | Gives the reviewer usable facts instead of a vague history. |
| Side effects or interactions | Shows why the required drug may be unsafe. |
| Kidney, liver, fall, or other risks | Explains why this person may not be an average patient. |
| Harm from delay | Supports an expedited request when the medical standard is met. |
Ask the office to include the member ID and case number on each page. Ask where it was sent and keep the fax or portal confirmation. Then call the plan and ask whether the supporting statement is actually in the case file.
Decision and Appeal Timeframes
These are maximum federal timeframes for common benefit requests. A plan must act sooner when the person’s health requires it. Always follow the dates and filing instructions on your own notice.
| Request | Standard | Expedited |
|---|---|---|
| Part D exception | 72 hours after prescriber support is received | 24 hours after prescriber support is received |
| Part D level 1 appeal | 7 calendar days for a benefit appeal | 72 hours |
| Part D level 2 appeal | 7 calendar days for a benefit appeal | 72 hours |
| MA Part B drug decision | 72 hours | 24 hours |
| MA Part B drug appeal | 7 calendar days | 72 hours |
For Part D exceptions, the decision clock normally turns on the prescriber’s supporting statement. The July 2026 CMS guidance also has a safeguard when that statement has not arrived: the plan cannot leave the exception request open indefinitely. Do not wait for that safeguard; get the prescriber’s statement sent promptly.
For a Part D denial, Medicare says the level 1 appeal normally must be requested within 65 days from the date on the initial denial notice. A standard Part D benefit appeal is due in 7 days, and a fast appeal in 72 hours. Medicare’s Part D redetermination page confirms those rules. If the plan denies the first appeal, the level 2 request is generally due within 60 days.
For Medicare Advantage, the current health plan appeals page lists a 7-day standard appeal time for Part B drugs and 72 hours for a fast appeal. If the plan upholds the denial, it sends the case to the Independent Review Entity for level 2 review.
What to Do While You Wait
- Ask what is medically safe. Your prescriber or pharmacist should guide any temporary treatment. Do not improvise a switch.
- Ask about a transition fill. When new Part D coverage begins, Medicare says you may get a one-time 30-day transition supply of a drug you were already taking if the plan does not cover it or requires prior authorization or step therapy. Check the plan’s transition fill rule.
- Keep every receipt. If you pay cash, ask the plan how to request reimbursement if coverage is later approved. A fast decision is generally for access to a drug, not repayment after you already received it.
- Track harm from delay. Note missed doses, worsening symptoms, canceled treatment, side effects, falls, breathing problems, pain, or loss of function.
- Do not confuse financing with coverage. The Prescription Payment Plan can spread covered Part D costs over time, but it does not make a blocked or noncovered drug covered.
How to Start Without Wasting Time
- Write down the drug name, strength, dose, quantity, diagnosis, pharmacy, and prescriber.
- Ask the pharmacy for the exact reject message and written Medicare coverage notice.
- Call the plan and ask which benefit applies: Part D or Medicare Advantage Part B.
- For Part D, say: “I want a coverage determination and an exception to the step therapy requirement.”
- For a Medicare Advantage Part B drug, say: “I want an organization determination for this Part B drug.”
- Get the case number and the fax, portal, or other route for medical records.
- Ask the prescriber to send the supporting statement and identify why delay would be harmful if you need a fast review.
- Call back after the records are sent. Ask what was received and when the decision deadline ends.
Document Checklist
- Pharmacy rejection notice or plan denial notice
- Plan name, member ID, case number, and plan phone number
- Drug name, strength, dose, quantity, and diagnosis
- Plan formulary or rule showing the step requirement
- Drugs already tried, including dates and results
- Side effects, allergies, interactions, and safety risks
- Relevant chart notes, labs, specialist notes, or hospital records
- Prescriber supporting statement
- Fax confirmation, portal receipt, or mailing proof
- Receipts for any out-of-pocket payment
- Call log with dates, names, and reference numbers
- Representative paperwork if someone else will handle the case
CMS maintains current Part D request forms. A form is often helpful, but CMS also accepts other written requests that contain the needed information.
If a family member or other helper will act as your formal representative, use Appointment of Representative Form CMS-1696 or a conforming written appointment. If you only want 1-800-MEDICARE to share personal health information with someone, that is a different authorization; CMS explains the CMS-10106 disclosure form.
Phone Scripts You Can Use
Call the drug plan
“My pharmacy says this drug is blocked by step therapy. Please open a coverage determination and a step therapy exception. What is the case number, where should my prescriber send support, and when does the decision clock begin?”
Call the prescriber
“My Medicare plan requires step therapy. Please send a supporting statement that addresses the required drug, what I already tried, why it would be less effective or cause harmful effects, and why delay is unsafe if this needs an expedited review.”
Call about a Part B drug
“Is this drug covered under my Medicare Advantage Part B benefit? If the plan is applying step therapy, please request an organization determination and tell me whether the request is standard or expedited.”
Call a Medicare counselor
“I have a step therapy denial and I am not sure whether it is Part D or Part B. I have the notice and case number. Can you help me identify the right appeal path and deadline?”
Reality Checks
- The pharmacist may not be able to fix it. The pharmacy can explain the rejection, but the plan makes the formal coverage decision.
- The prescriber statement matters. A Part D exception can stall if the plan is waiting for medical support. Confirm receipt instead of assuming the fax arrived.
- Fast review has a medical standard. Wanting a quicker answer is not enough. The plan or prescriber must determine that the standard wait could seriously jeopardize health, life, or recovery of maximum function.
- Paying cash changes the request. If you already received the drug, you may be asking for reimbursement rather than urgent access.
- New plan year, new rules. Formularies and utilization rules can change. Review your drug list during Medicare plan shopping, especially after an exception year.
Common Mistakes to Avoid
- Leaving the pharmacy without the written notice or exact reject reason.
- Arguing only about price when the real problem is a coverage rule.
- Waiting for the doctor and plan to coordinate without checking whether records arrived.
- Sending a generic doctor note that does not address the plan’s required step drug.
- Missing the filing date printed on the denial notice.
- Using the CMS-10106 disclosure form when you actually need to appoint someone to handle an appeal.
- Throwing away cash receipts, fax confirmations, or call reference numbers.
Denied, Delayed, or Overwhelmed
If the exception is denied: Read the exact reason. Then ask the prescriber to answer that reason in the appeal. If the plan says there is no record that you tried a required drug, provide the treatment history, dates, and outcome.
If the plan is late: Call and ask whether the plan considers the request complete and which deadline applies. Ask for a supervisor if the decision time has passed. A grievance can address poor service or delay, but an appeal is what challenges the coverage denial.
If you need help: A State Health Insurance Assistance Program counselor can help you read the notice and organize an appeal. GFS explains how to get SHIP and SMP help.
If cost is also a problem: Check whether Extra Help or another assistance route may reduce covered prescription costs. The GFS Medicare savings checker can help you identify programs worth asking about. If you are tracking the 2026 drug-spending cap, see Part D cap tracking.
Official Help and Backup Options
- Medicare: Call 1-800-MEDICARE (1-800-633-4227). TTY users can call 1-877-486-2048. Medicare also provides contact options online.
- SHIP counseling: Use the SHIP counselor finder for free, unbiased local Medicare counseling.
- Medicare Rights Center: This established nonprofit offers Medicare counseling through its Medicare helpline.
- Plan contact: Use the member-services number on your plan card. CMS also maintains Part D plan contacts.
Changing plans is usually not the fastest answer to a drug you need now. Use the exception and appeal route first. Plan comparison can be useful later if your drug is repeatedly difficult to cover.
Resumen en Español
La terapia escalonada significa que el plan puede exigir que usted pruebe primero otro medicamento antes de cubrir el medicamento recetado. Si esto ocurre con un medicamento de la Parte D, pida una determinación de cobertura y una excepción a la terapia escalonada.
Pida al médico que explique por qué el medicamento exigido ya falló, sería menos efectivo o podría causar efectos adversos. Si esperar puede poner en riesgo serio su salud, pida una revisión acelerada. Guarde el aviso del plan, el número del caso, los recibos y la confirmación de los documentos enviados.
Si otra persona va a manejar la apelación por usted, normalmente use el formulario CMS-1696 para nombrar a un representante. Para ayuda gratuita, llame a Medicare al 1-800-633-4227 o busque un consejero de SHIP.
Frequently Asked Questions
Is step therapy the same as prior authorization?
Step therapy is a type of prior authorization. It requires you to try a preferred drug first unless the plan approves an exception.
Is a pharmacy rejection the final denial?
Not always. Ask for the written pharmacy notice and contact the plan for a formal coverage determination. That formal decision gives you a clear appeal path if the plan still says no.
How fast is a Part D exception?
For a benefit exception, the plan generally must decide within 72 hours for a standard request or 24 hours for an expedited request after it receives the prescriber’s supporting statement.
Can a caregiver handle the appeal?
Yes, but the plan may need a formal appointment. Form CMS-1696 is the Medicare Appointment of Representative form. A prescriber can make certain Part D requests for you without becoming your appointed representative.
What if I already paid cash?
Keep the receipt and ask the plan how to request reimbursement. If you already received the drug, the request is usually a payment request rather than a fast request for access to the medicine.
Does an approved exception last forever?
No. For Part D, an approved exception can protect continued coverage for the rest of the plan year when the CMS conditions are met. Do not assume it automatically carries into a new plan year.
About This Guide
This guide uses official federal, state, local, and other high-trust nonprofit and community sources mentioned in the article.
Editorial note
This guide is produced based on our Editorial Standards using official and other high-trust sources, regularly updated and monitored, but not affiliated with any government agency and not a substitute for official agency guidance. Individual eligibility outcomes cannot be guaranteed.
Corrections
Please note that despite our careful verification process, errors may still occur. Email info@grantsforseniors.org with corrections and we will respond within 72 hours.
Disclaimer
This article is for informational purposes only and is not legal, financial, medical, tax, disability-rights, immigration, or government-agency advice. Program rules, policies, and availability can change. Readers should confirm current details directly with the official program before acting.
Last updated: 22 September 2026 · Next review: 22 January 2027
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