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4870 Barranca PkwySuite 250Irvine, CA 92604
Phone+1 949-272-3800
Dr. O'Brien is on Doximity
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Education & Training
University of California (Irvine)Residency, Internal Medicine, 1992 - 1995
New York Medical CollegeClass of 1992
Certifications & Licensure
CA State Medical License 1994 - 2027
American Board of Internal Medicine Internal Medicine
Press Mentions
Delay Antibiotics for Sepsis Patients? No Thanks, Say Some DocsOctober 27th, 2018
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