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

Dr. Connor Galen O'Brien, MD

Individual provider Internal Medicine Physician · NPI 1063788727

Dr. Connor Galen O'Brien, MD is a Cardiovascular Disease (Cardiology) in San Francisco, California. Qualified in 2012, 14 years ago. Practices with Regents of the University of California, a 717-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
14
Licensed in
CA
In the registry since
2012
Specialties on file
3
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

535 Mission Bay Blvd S
San Francisco, CA 94143-2156
Phone: (415) 353-2873
Fax: (415) 353-2528
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence A126717 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A126717 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence A126717 (CA)

Record details

NPI number1063788727
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2012
Last updated in NPPESSeptember 16, 2021
Certification dateSeptember 16, 2021

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Regents Of The University Of California — 717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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