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Merck

Merck Patient Assistance Program (MPAP)

Free Merck meds for uninsured patients with income ≤ $63,840 single / $86,560 couple / $132,000 family of 4 (2026). Medicare patients may qualify via hardship exception.

Doctor signature neededUninsured only

What you need to enroll

Your doctor needs to sign part of the application

This program requires a prescriber signature. The easiest path: download the application, bring it to your next appointment, and have the office fax it in for you.

Your copay

Free

Eligible patients pay $0. See the eligibility checklist below to confirm you qualify.

Download form for your doctor

Covered medications

  • Januvia (sitagliptin)
  • Janumet (sitagliptin + metformin)
  • Janumet XR (sitagliptin + metformin extended-release)
  • Steglatro (ertugliflozin)
  • Segluromet (ertugliflozin + metformin)
  • Steglujan (ertugliflozin + sitagliptin)

Am I eligible?

Need a prescription?
Yes — written by a licensed prescriber for the medications below.
Insurance required?
Uninsured patients only — not for anyone with insurance.
State restrictions?
Available nationwide.
Income limits?
Yes — household income limits apply. Verify with the program.

Accepted

  • US resident (citizenship not required), age 18+
  • Annual household income ≤ $63,840 (single) / $86,560 (couple) / $132,000 (family of 4) — 2026 limits
  • Has a Merck Rx from a US-licensed prescriber
  • Uninsured OR Medicare Part D enrollee with documented financial + medical hardship

Not accepted

  • Have private insurance, HMO, Medicaid, state pharmacy assistance, VA, or any other coverage (unless hardship-exception applies)
  • Income above the program thresholds
  • Enrolled in an alternate funding program (AFP) that requires applying to MPAP as a coverage condition
  • Non-Merck medications

How to apply

  1. Call 1-800-727-5400 (8 AM–8 PM ET) to request an enrollment packet, or download at merckhelps.com
  2. Complete Sections 1–2 (patient info + income verification + signed authorizations)
  3. Take the form to your prescriber to complete Sections 3–4 (Rx + NPI + Dispense As Written)
  4. Both patient and prescriber must sign — copies will not be accepted
  5. Mail the ORIGINAL signed form to: Merck Patient Assistance Program, PO Box 1206, Wilkes Barre, PA 18703-1206

Using it at the pharmacy

This is patient assistance — Merck ships your medication directly to you. No pharmacy handoff.

Terms & limits

Fills per year
4 fills per year, per covered drug
Renewal
Renew every year
Download form for your doctor

Government-insured patients are NOT eligible for the Merck savings/copay card, but Medicare beneficiaries may qualify for MPAP via a hardship exception. One enrollment form may include up to 3 Merck medicines; each Rx is up to 90-day supply with max 3 refills. Enrollment is valid for 12 months (sometimes calendar-year only). US residents — citizenship not required. Steglatro/Segluromet/Steglujan inclusion as of 2026 is uncertain post Pfizer-Merck licensing realignment — needs manual confirmation.

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