Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Matthew Brennan O'Brien, MD

Individual provider Diagnostic Radiology Physician · NPI 1417210998

Mr. Matthew Brennan O'Brien, MD is a Diagnostic Radiology in Portland, Oregon. Graduated from Wayne State University School of Medicine in 2012, 14 years ago. Practices with University Professional Services, a 1,704-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Oregon.

Years since qualifying
14
Trained at
Wayne State University School of Medicine
Licensed in
MA, OR
In the registry since
2012
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (503) 418-0990
Fax: (503) 494-4982
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD204156 (OR)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 270757 (MA)

Record details

NPI number1417210998
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2012
Last updated in NPPESMarch 20, 2026
Certification dateMarch 20, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice University Professional Services — 1704 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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