Transferring Medicaid from Massachusetts to Montana
Plan on a close-and-reapply. Massachusetts Medicaid only works while you live in Massachusetts; once you land in Montana, your application goes to Montana Department of Public Health and Human Services (DPHHS). File it immediately after arriving, because processing takes time and coverage ties to the application date.
Both states cover adults under expansion rules at 138% of the federal poverty level, so if you qualified on income in Massachusetts, you will likely qualify in Montana too.
Official Montana Medicaid agency: Montana Department of Public Health and Human Services (DPHHS) ↗ (application page)
Your step-by-step checklist
Before you move
- 1
Gather your documents before the move
You will reapply from scratch: proof of identity, income (pay stubs or award letters), your new address, and immigration documents if applicable.
- 2
Tell Massachusetts Executive Office of Health and Human Services (MassHealth) you are leaving
Report your move and ask for your case to be closed effective the end of the month you leave. Medicaid cannot cover you in two states at once.
Massachusetts Executive Office of Health and Human Services (MassHealth) ↗
Moving week
- 3
Time the closure to the end of your move month
Keep coverage through the month you travel. Your old state's coverage generally ends the month you stop being a resident.
After you arrive
- 4
Apply with Montana Department of Public Health and Human Services (DPHHS) as soon as you arrive
There is no waiting period based on how long you have lived there — apply immediately. Processing: up to 45 days.
Online application ↗ - 5
Ask about retroactive coverage
Most states can cover eligible medical bills up to 3 months before your application date — ask when you apply if you had care during the gap.
Massachusetts vs Montana: the numbers that decide it
| Massachusetts (old state) | Montana (new state) | |
|---|---|---|
| Program name | MassHealth | Montana Medicaid |
| Agency | Massachusetts Executive Office of Health and Human Services (MassHealth) | Montana Department of Public Health and Human Services (DPHHS) |
| ACA Medicaid expansion | Yes — adults covered on income | Yes — adults covered on income |
| Adult income limit | 138% of the federal poverty level | 138% of the federal poverty level |
Verified 2026-08-08 (Massachusetts) and 2026-08-08 (Montana) against the official sources cited below.
Moving with more than one benefit?
The checklist generator merges Medicaid, SNAP, WIC, unemployment, and TANF into one ordered to-do list for this exact move.
Build the full Massachusetts → Montana checklistCommon questions
Can I use my Massachusetts Medicaid in Montana while I wait?
Generally no. Massachusetts Medicaid only pays providers for Massachusetts residents, and out-of-state care is limited to emergencies. Once you live in Montana, you need Montana coverage — apply immediately and ask about retroactive coverage for bills in the gap.
Is there a waiting period for Medicaid in Montana?
No. States cannot impose a minimum-residency waiting period. You qualify (or not) on Montana's income and category rules from the day you become a resident. The application itself takes up to 45 days.
Can I have Medicaid in two states at once?
No. You can only receive Medicaid from the state where you live. Keeping an old case open while opening a new one can create repayment problems — close the Massachusetts case effective your move month.
Where do I actually apply in Montana?
Through Montana Department of Public Health and Human Services (DPHHS) (online application linked above). Official Medicaid pages for both states are cited at the bottom of this page.
Related guides
Official sources
Every fact above was checked against these official pages. Last verified.
- Mass.gov — MassHealth — accessed 2026-08-08
- Mass.gov — Apply for MassHealth — accessed 2026-08-08
- DPHHS Montana Healthcare Programs (Medicaid) — accessed 2026-08-08
- DPHHS Medicaid Expansion (HELP Act) information — accessed 2026-08-08