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 a Distinguished provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Gastric Dysmotility, Irritable Bowel Syndrome (IBS), Diarrhea, Gastrectomy, and Endoscopy.

Vijay Mirmira is a primary care provider, practicing in Family Medicine in Menlo Park, California. Dr. Mirmira is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and High Cholesterol.

Linda Nguyen is a Gastroenterologist in Redwood City, California. Dr. Nguyen is rated as a Distinguished provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gastroparesis, Irritable Bowel Syndrome (IBS), Morning Sickness, Intestinal Pseudo-Obstruction, and Colonoscopy.

Leila Neshatian is a Gastroenterologist in Redwood City, California. Dr. Neshatian is rated as a Distinguished provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Bowel Incontinence, Irritable Bowel Syndrome (IBS), Neurogenic Bowel, Endoscopy, and Colonoscopy.

Brett Wolff is a primary care provider, practicing in Internal Medicine in San Carlos, California. Dr. Wolff is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypothyroidism.

Haleh Sheikholeslami is an Integrative Medicine provider in San Carlos, California. Dr. Sheikholeslami is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Irritable Bowel Syndrome (IBS), Encopresis, Bowel Incontinence, and Obesity in Children.

James Lin is a Gastroenterologist in Stanford, California. Dr. Lin is rated as a Distinguished provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Irritable Bowel Syndrome (IBS), Chronic Erosive Gastritis, Gastritis, Gastrectomy, and Endoscopy.

Brooke Gurland is a General Surgeon in Palo Alto, California. Dr. Gurland is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Rectal Prolapse, Bowel Incontinence, Levator Syndrome, Pelvic Laparoscopy, and Sacral Nerve Stimulation.

Mythili Pathipati is a Gastroenterologist in Palo Alto, California. Dr. Pathipati is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Irritable Bowel Syndrome (IBS), Colonic Malakoplakia, and Colonoscopy. Dr. Pathipati is currently accepting new patients.

Anne Thai is a Gastroenterologist in Burlingame, California. Dr. Thai is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Portal Hypertension, Gastrointestinal Bleeding, Endoscopy, and Gastrectomy. Dr. Thai is currently accepting new patients.

Ernest Ribera is a Gastroenterologist in Burlingame, California. Dr. Ribera is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). 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.

John Clarke is a Gastroenterologist in Redwood City, California. Dr. Clarke is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Achalasia, Painful Swallowing, Swallowing Difficulty, Endoscopy, and Colonoscopy.

Atulkumar Shah is a Gastroenterologist and a Hepatologist in Redwood City, California. Dr. Shah is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Hiatal Hernia, Congenital Diaphragmatic Hernia, Diverticular Disease, Endoscopy, and Gastrectomy.

David Goldenberg is a Gastroenterologist in Redwood City, California. Dr. Goldenberg is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Bacterial Gastroenteritis, Necrotizing Enterocolitis, Pseudomembranous Colitis, Gastrectomy, and Endoscopy.

Damanpreet Grewal is a Gastroenterologist in Redwood City, California. Dr. Grewal has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gas Bloat Syndrome, Bowel Incontinence, Irritable Bowel Syndrome (IBS), Endoscopy, 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 Irritable Bowel Syndrome (IBS). His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Indigestion, Endoscopy, and Gastrectomy.

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 Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Ulcerative Colitis, Diverticular Disease, Familial Adenomatous Polyposis, Colonoscopy, and Gastrectomy.

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 Irritable Bowel Syndrome (IBS). Her top areas of expertise are Familial Adenomatous Polyposis, Gastric Dysmotility, Indigestion, Portal Hypertension, and Colonoscopy.

Anna Yan is a primary care provider, practicing in Internal Medicine in San Carlos, California. Dr. Yan is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Diabetic Hyperglycemic Hyperosmolar Syndrome, Type 2 Diabetes (T2D), Coronary Artery Spasm, and Prinzmetal's Variant Angina.

Tu Nguyen is a Gastroenterologist in Menlo Park, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, and Gastroesophageal Reflux Disease (GERD).