A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
- Currently 4 of 4 stars
The overall average patient rating of Dr. Thomas O'Brien is Excellent. Dr. O'Brien has been reviewed by 1 patients who have provided 0 comments. The rating is 4 out of 4 stars.
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Specialties & Research
Dr. Thomas O'Brien, MD is board certified in Internal Medicine and Gastroenterology.
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Education & Awards
Dr. O'Brien graduated from Saint Louis University.More Education & Awards
Dr. O'Brien has 3 hospital affiliations:
- California Pacific Medical Center - Davies Campus
- Kaiser Permanente Medical Center San Rafael
- San Rafael Medical Center
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- Additional Information
- Where does Dr. Thomas K. O'Brien practice?
Dr. Thomas O'Brien practices Internal Medicine and Gastroenterology near San Francisco, CA.
Additional practice locations include: San Rafael, CA.
See San Francisco Internists and San Francisco Gastroenterologists.
- Similar Physician Names
- Dr. Tom O'Brien, Dr. Tomas O'Brien, Dr. Tommie O'Brien, Dr. Tommy O'Brien