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

Individual provider Rheumatology Physician · NPI 1770641870

Brian Patrick Oconnor, MD is a Rheumatology Physician in Pasadena, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

675 S Arroyo Pkwy Ste 400
Pasadena, CA 91105-3264
Phone: (626) 795-4116
Fax: (626) 568-3127
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Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence G040893 (CA)

Record details

NPI number1770641870
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 15, 2011
Mailing address675 S Arroyo Pkwy, Ste 400, Pasadena, CA 91105-3264

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