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

Dr. Walter R O'Brien, MD

Individual provider Sports Medicine (Family Medicine) Physician · NPI 1346290814

Dr. Walter R O'Brien, MD is a Sports Medicine (Family Medicine) Physician in Los Angeles, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

11600 Wilshire Blvd Ste 522
Los Angeles, CA 90025-5781
Phone: (310) 477-7276
Fax: (310) 477-5148
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Family Medicine) Physician (primary) Taxonomy 207QS0010X · Licence G063193 (CA)

Record details

NPI number1346290814
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2006
Last updated in NPPESMarch 7, 2023
Certification dateMay 22, 2020

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