Quick answers
- Does John H. Tremper accept Medicare assignment?
- Yes. Medicare's clinician data says John H. Tremper 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 H. Tremper's NPI number?
- 1487663423. 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 H. Tremper works
Medicare's Facility Affiliation Data lists John H. Tremper 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.
- Central Montana Medical CenterLewistown, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271345
- Logan Health Medical CenterKalispell, MT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 270051
Practice locations
Addresses where John H. Tremper is enrolled with Medicare (CMS data updated October 2, 2026).
- 1273 Burns WayKalispell, MT 59901 (406) 752‑8300
- 160 Heritage WayKalispell, MT 59901
- 350 Heritage WayKalispell, MT 59901
Group practices
Medicare enrollment lists John H. Tremper as a member of this group (CMS data updated October 2, 2026).
- Kalispell Regional Medical Center Inc421 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Kalispell
Clinicians with the same Medicare primary specialty in Kalispell, MT — not a recommendation.
Other clinicians in Kalispell Regional Medical Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Utah School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487663423 |
| 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