Brian Clark, MD, PHD
NPI 1275977571 · Diagnostic Radiology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Clark, MD, PHD is a Diagnostic Radiology Physician provider in Portland, OR (NPI 1275977571).
Provider details
- NPI number
- 1275977571
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD178701 (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
13 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-17
- Last updated
- 2019-06-05
Frequently asked questions
- What is Brian Clark's NPI number?
- Brian Clark's National Provider Identifier (NPI) is 1275977571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Clark's specialty?
- Brian Clark is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Clark located?
- Brian Clark's practice location on file with NPPES is 9205 Sw Barnes Rd, Portland, OR 97225-6603.
- What is Brian Clark's phone number?
- The practice phone number listed in the NPPES registry for Brian Clark is (503) 797-6356.
- Does Brian Clark accept Medicare?
- Brian Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Clark's NPI active?
- Yes — Brian Clark's NPI (1275977571) is active in the NPPES registry as of the last update on 2019-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.