Dr. Thomas O'Brien MD
- Gastroenterology San Rafael, CA
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Dr. Thomas O'Brien, MD is a Doctor primarily located in San Rafael, CA. Their specialties include Gastroenterology. Dr. O'Brien is affiliated with California Pacific Medical Center - Davies Campus and Kaiser Permanente Medical Center San Rafael. They speak English.
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Specialties & Expertise
Dr. Thomas O'Brien has the following 5 areas of expertise, 1 specialty and 2 board certifications.
A gastroenterologist is a specialist in diagnosis and treatment of conditions involving the digestive/gastrointestinal (GI) tract. These doctors are experts on how food moves through the digestive system and is chemically broken down, with nutrients being absorbed and waste excreted. You might see this kind of doctor if you are experiencing any number of stomach issues, some of which might be severe diarrhea, irritable bowel syndrome, hemorrhoids, ulcers, acid reflux, Crohn's disease and more.
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See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.
Get the facts about colonoscopy, including how and why it's done and doctors who perform the procedure.
Locations & Directions
Dr. Thomas O'Brien, MD is similar to these 3 Doctors near San Rafael, CA.