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Yes, Dr. Onpan Cheung is accepting new patients at this office.
2295 S. Vineyard Ave, Ontario, CA 91761
Please contact the doctor’s office to inquire about insurance.
Dr. Cheung has one office in California where she specializes in Gastroenterology and Internal Medicine.
Dr. Cheung works with one hundred and one doctors including Dr. David Wu and Dr. Ngoc Patrick Nguyen.
As a gastroenterologist, Dr. Cheung diagnoses and treats individuals struggling with problems of the gastrointestinal (GI) tract, commonly known as the digestive system. Treating conditions such as Crohn's disease or gastroesophageal reflux disease, Dr. Cheung is additionally well versed in the effects of diet & nutrition, and their relationship with your general well-being.
The specialty of internal medicine is an area of primary care for adults. Dr. Cheung specializes in diagnosing and treating cross-system illnesses that may affect multiple organ systems. When necessary, Dr. Cheung 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.