John Tremper, M.D.
NPI 1487663423 · Family Medicine Physician · Kalispell, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Tremper, M.D. is a Family Medicine Physician provider in Kalispell, MT (NPI 1487663423).
Provider details
- NPI number
- 1487663423
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 7825 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 47 | 19 |
| Losartan Potassium | 46 | 21 |
| Amlodipine Besylate | 27 | 11 |
| Trazodone Hcl | 25 | — |
| Fluoxetine Hcl | 24 | — |
| Levothyroxine Sodium | 23 | 11 |
| Duloxetine Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 1287 Burns WayKalispell, MT 59901-3109Phone: (406) 752-8120Fax: (406) 752-8134
Registry dates
- Enumerated
- 2006-08-07
- Last updated
- 2025-02-11
- Certified
- 2025-02-11
Frequently asked questions
- What is John Tremper's NPI number?
- John Tremper's National Provider Identifier (NPI) is 1487663423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Tremper's specialty?
- John Tremper is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Tremper located?
- John Tremper's practice location on file with NPPES is 1035 1st Ave West, Kalispell, MT 59901-5607.
- What is John Tremper's phone number?
- The practice phone number listed in the NPPES registry for John Tremper is (406) 751-8155.
- Does John Tremper accept Medicare?
- John Tremper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Tremper's NPI active?
- Yes — John Tremper's NPI (1487663423) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.