Health care leader whose mission is to keep you healthy. Under-one-roof convenience, 24-hour advice nurse, and online access to manage your health - anytime.
Yes, Dr. Tommy T. Oei is accepting new patients at this office.
9961 Sierra Ave, Fontana, CA 92335
Please contact the doctor’s office to inquire about insurance.
Dr. Oei has one office in California where he specializes in Gastroenterology and Internal Medicine.
Dr. Oei works with three hundred and sixty-five doctors including Dr. Nehal Patel and Dr. Devin Mudge.
As a physician specializing in gastroenterology, Dr. Oei provides personalized treatment plans for patients suffering from problems of the gastrointestinal tract, also known as the digestive system. Gastroenterologists may treat conditions such as Crohn's disease or heartburn. Dr. Oei is also familiar with diet & nutrition, and their relationship with your general well-being.
The specialty of internal medicine is an area of primary care for adults. Dr. Oei specializes in diagnosing and treating cross-system illnesses that may affect multiple organ systems. When necessary, Dr. Oei can also refer patients to specialists when medically needed. As an example, patients with severe allergies could be referred to an allergist for added diagnostic tests or treatment options.