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20100 Lake Chabot RdSte 3Castro Valley, CA 94546
Phone+1 510-581-7677
Fax+1 510-581-7678
Dr. O'Brien is on Doximity
As a Doximity member, you’ll join more than three million U.S. healthcare professionals—including 85+% of physicians, and 2/3 of all NPs and PAs—in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Education & Training
Providence Little Company of Mary Medical Center San PedroResidency, Family Medicine, 1987 - 1989
University of California (Irvine)Internship, Internal Medicine, 1986 - 1987
Boston University School of MedicineClass of 1986
Certifications & Licensure
CA State Medical License 1987 - 2023
TX State Medical License 1969 - 2017
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification Practice Fusion, Practice Fusion, 2013-2014
- CMS Meaningful Use Stage 1 Certification Practice Fusion EHR, Practice Fusion, 2013-2014
- CMS Meaningful Use Stage 1 Certification Practice Fusion EHR, Practice Fusion, Inc., 2013
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