In his free time, Dr. Kao enjoys playing the piano, listening to live music, enjoying the outdoors and traveling to Italy. He and his wife, who were married in her hometown of Padova, Italy, also love to bike, run and enjoy the outdoors. Dr. Roger Kao is fluent in Mandarin Chinese and conversational medical Spanish and Italian. Dr. Kao is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Gastric Dysmotility, Irritable Bowel Syndrome (IBS), Diarrhea, Gastrectomy, and Endoscopy.

Dr. Torosis is a native of Montreal, Canada and founded Peninsula Gastroenterology Medical Group in 1986. Dr. Torosis attended medical school and internship at McGill University in Montreal. In 1982 Dr. Torosis moved to California where he completed his internal medicine residency in San Diego. He attended Yale University for his fellowship in Gastroenterology and Liver Diseases. In 1986 at the completion of his fellowship, he moved to the Peninsula. Dr. Torosis is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Ulcerative Colitis, Diverticular Disease, Familial Adenomatous Polyposis, Colonoscopy, and Gastrectomy.

Board Certified Internal Medicine. Dr. Jacoby is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Ecthyma, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Endoscopy.

Yasser Bhat is a Gastroenterologist in San Carlos, California. Dr. Bhat is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Bile Duct Obstruction, Choledocholithiasis, Barrett Esophagus, Endoscopy, and Colonoscopy. Dr. Bhat is currently accepting new patients.

Tohru Sato is a Gastroenterologist in San Carlos, California. Dr. Sato is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhoids, Colorectal Polyps, Colonoscopy, and Endoscopy. Dr. Sato is currently accepting new patients.

Board Certified in Internal Medicine. Dr. Gonzales is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. Her top areas of expertise are Hyperlipidemia Type 3, Lung Metastases, High Cholesterol, Ureteroscopy, and Endoscopy.

Patients are the customers and owners of their health. Doctors are providers of information, education and personalized services to the patients. While doctors are good sources of opinions and guidance, ultimately all decisions should come from well informed patients. Dr. Yang strongly believes the best medical care is delivered when the doctor is a knowledgeable and compassionate patient advocate which includes providing clear communication, recommending options that have sound scientific basis, and developing action plans that are customized and well organized. It is the patient-centric approach that has served Dr. Yang and her patients well over many years. Dr. Yang is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. Her top areas of expertise are Familial Adenomatous Polyposis, Gastric Dysmotility, Indigestion, Portal Hypertension, and Colonoscopy.

I strongly believe in providing compassionate, thorough and up to date medical treatment for all of my patients. I strive to be a good listener to determine the best diagnostic and therapeutic approach for each patient every time I see them in the office. Our entire team here at Peninsula Gastroenterology Medical Group does our best to ensure your visit will be pleasant and stress free! I look forward to meeting with you. Dr. Rengstorff is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Indigestion, Endoscopy, and Gastrectomy.

Medicine is an integral and active partnership between patient and physician. I strive to provide care for all my patients with warmth, compassion, and patience. I value being thorough, straightforward, and practicing medicine at the forefront of technology and research. I look forward to being a part of my patient's healthcare team. Dr. Leung is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. Her top areas of expertise are Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

Ian Tseng is a Radiologist in San Mateo, California. Dr. Tseng is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Gallbladder Disease, Biliary Dyskinesia, Diverticular Disease, and Visceromegaly.

Michael Yang is a Radiologist in Redwood City, California. Dr. Yang has been practicing medicine for over 18 years and is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Lung Nodules, Visceromegaly, Angiomyoma, and Non-Alcoholic Fatty Liver Disease.

Andrew Shelton is a General Surgeon in Stanford, California. Dr. Shelton is rated as a Distinguished provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Lynch Syndrome, Ileostomy, and Colostomy.

Janet Nguyen is a Radiologist in Redwood City, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. Her top areas of expertise are Breast Lump, Aseptic and Alopecic Nodules of Scalp (AANS), Gallbladder Disease, and Pleurisy. Dr. Nguyen is currently accepting new patients.

Kyung Ro is a Radiologist in Redwood City, California. Dr. Ro is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. Her top areas of expertise are Cerebellar Multiple System Atrophy, Hepatocerebral Degeneration, Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease, and Aseptic and Alopecic Nodules of Scalp (AANS). Dr. Ro is currently accepting new patients.

James Kang is a Radiologist in Redwood City, California. Dr. Kang is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Herniated Disk, Aseptic and Alopecic Nodules of Scalp (AANS), Cerebral Arteriovenous Malformation, Spinal Fusion, and Laminectomy. Dr. Kang is currently accepting new patients.

Cam Tran is a Radiologist in Redwood City, California. Dr. Tran is rated as an Experienced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Aseptic and Alopecic Nodules of Scalp (AANS), Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease, Cerebral Arteriovenous Malformation, and Rathke Cleft Cyst. Dr. Tran is currently accepting new patients.

Robert Hicks is a Radiologist in San Mateo, California. Dr. Hicks is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Osteopenia, Melorheostosis, Melorheostosis with Osteopoikilosis, and Pleurisy.

Edward Onuma is a Gastroenterologist in San Mateo, California. Dr. Onuma is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Hemorrhoids, Heartburn, Portal Hypertension, Gastrectomy, and Colonoscopy. Dr. Onuma is currently accepting new patients.

Our goal is to provide you with personalized medical care using the most current technology to diagnose and treat your medical problems. Emphasis is placed on disease prevention whenever possible. Should you need specialized treatment, a range of diagnostic and therapeutic procedures are available. We will work with your primary care physician to help diagnose, treat, and heal. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy.

Ernest Ribera is a Gastroenterologist in Burlingame, California. Dr. Ribera is rated as an Advanced provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Esophagitis, Barrett Esophagus, Gastroesophageal Reflux Disease (GERD), and Endoscopy. Dr. Ribera is currently accepting new patients.