Quick answers
- Does John M. Montminy accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Montminy accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is John M. Montminy's NPI number?
- 1558478305. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John M. Montminy works
Medicare's Facility Affiliation Data lists John M. Montminy at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Cottage HospitalWoodsville, NH · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 301301
- Day Kimball HospitalPutnam, CT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 070003
- Littleton Regional HealthcareLittleton, NH · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 301302
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300003
- Weeks Medical CenterLancaster, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301303
Practice locations
Addresses where John M. Montminy is enrolled with Medicare (CMS data updated October 2, 2026).
- 320 Pomfret StPutnam, CT 06260 (860) 928‑6541
- 580 Saint Johnsbury RdLittleton, NH 03561
- 600 Saint Johnsbury RdLittleton, NH 03561 (603) 444‑9000
Group practices
Medicare enrollment lists John M. Montminy as a member of these groups (CMS data updated October 2, 2026).
- Littleton Hospital Association113 clinicians in the group
- Day Kimball Medical Group Inc89 clinicians in the group
Specialties
Other family doctors in Putnam
Clinicians with the same Medicare primary specialty in Putnam, CT — not a recommendation.
Other clinicians in Littleton Hospital Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558478305 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians