Peter Mahr, MD
NPI 1548312754 · Family Medicine Physician · Portland, OR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Mahr, MD is a Family Medicine Physician provider in Portland, OR (NPI 1548312754).
Provider details
- NPI number
- 1548312754
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MC21928 (OR)
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
1 documented practice location
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 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 241 | 68 |
| Lisinopril | 178 | 48 |
| Amlodipine Besylate | 161 | 43 |
| Omeprazole | 130 | 31 |
| Gabapentin | 127 | 24 |
| Metformin Hcl | 119 | 29 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2009-12-18
Frequently asked questions
- What is Peter Mahr's NPI number?
- Peter Mahr's National Provider Identifier (NPI) is 1548312754, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Mahr's specialty?
- Peter Mahr is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Mahr located?
- Peter Mahr's practice location on file with NPPES is 426 Sw Stark St, Portland, OR 97204-2347.
- What is Peter Mahr's phone number?
- The practice phone number listed in the NPPES registry for Peter Mahr is (503) 988-3674.
- Does Peter Mahr accept Medicare?
- Peter Mahr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Mahr's NPI active?
- Yes — Peter Mahr's NPI (1548312754) is active in the NPPES registry as of the last update on 2009-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.