The 20 Best Diarrhea Doctors Near Me in Ontario, CA
Find the Top Diarrhea Experts and Specialists
The 20 Best Diarrhea Doctors near Ontario, CA
MediFind found 197 doctor with experience in Diarrhea near Ontario, CA. Of these, 181 are Experienced, 14 are Advanced and 2 are Distinguished.
Ct Hung MD Inc.
Chuang-ti Hung is a Gastroenterologist in Upland, California. Dr. Hung is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diverticular Disease, Trichohepatoenteric Syndrome, Hemorrhoids, Gastrectomy, and Gastrostomy.
Basim Z. Abdelkarim, M.D., Inc.
Basim Abdelkarim is a Gastroenterologist in Upland, California. Dr. Abdelkarim has been practicing medicine for over 27 years and is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy.
Chino Hills Family Medical Group
Cynthia Moreno is a primary care provider, practicing in Family Medicine in Chino, California. Dr. Moreno is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Empyema, Sinusitis, Cellulitis, and Vertigo.
Basim Z. Abdelkarim, M.D., Inc.
Priyanka Yaramada is a Gastroenterologist in Upland, California. Dr. Yaramada has been practicing medicine for over 18 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy.
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Monique Castro is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Castro is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Acute Cystitis, Otitis, Asthma in Children, and Eosinophilic Asthma.
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Dana Homer is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Homer is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Cellulitis, Parinaud Oculoglandular Syndrome, Otitis, and Peptic Ulcer.
Carlos R. Vigil DO A Professional Corp.
Hussein Abidali is a Gastroenterologist in Rancho Cucamonga, California. Dr. Abidali is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastrointestinal Bleeding, Hiatal Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gastrostomy.
Andrea S Tieng MD, Inc
Dr. Andrea Tieng was born and raised in New York City. She graduated Summa Cum Laude from the City University of New York and completed her medical degree at the State University of New York Health Science Center at the SUNY Downstate College of Medicine in Brooklyn, New York.Her internship and residency in Internal Medicine was completed at the Albert Einstein College of Medicine at Long Island Jewish Medical Center in New Hyde Park, New York, where she also fulfilled her Gastroenterology and Hepatology Fellowship.Board Certified by the American Board of Internal Medicine, Dr. Tieng is licensed to practice in both California and New York. She is a member of the American College of Gastroenterology and the American Gastroenterology Association.Prior to founding her own practice in Redlands and San Bernardino, Dr. Tieng worked as a private gastroenterologist at Cedars-Sinai Medical Center in Los Angeles.Dr. Tieng specializes in providing sensitive and compassionate care to women, and delivers personalized care to all patients 18 years and older. Dr. Tieng is a board certified physician who treats patients with gastrointestinal illnesses and liver diseases. She utilizes innovative technology to perform diagnostic and therapeutic procedures of the gastrointestinal tract, including colonoscopy and upper endoscopy. Dr. Tieng is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy.
California Medical Clinic Inc.
David Lozano is a primary care provider, practicing in General Practice in Ontario, California. Dr. Lozano is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Cirrhosis.
Kong-Tay Wu M.D Inc
Catareya Liep is a Pediatrics provider in Ontario, California. Dr. Liep is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top area of expertise is Diarrhea.
Ravinder Singh, Md, Inc.
Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Singh has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Milk-Alkali Syndrome, Hypercalcemia, Type 2 Diabetes (T2D), Hormone Replacement Therapy (HRT), and Parathyroidectomy.
Perez And Perez Medical Corp
Glenn Perez is a Pediatrics provider in Upland, California. Dr. Perez has been practicing medicine for over 48 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Obesity in Children, Diarrhea, and Croup.
Cucamonga Valley Medical Group, Inc.
Muhammad Mowjood is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Mowjood has been practicing medicine for over 26 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Obesity, Methylmalonic Acidemia with Homocystinuria, Hypermethioninemia, and Sulfite Oxidase Deficiency.
Win Family Medicine Inc.
Sandar Win is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Win is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Hyperemesis Gravidarum, Morning Sickness, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.
Cucamonga Valley Medical Group, Inc.
Brandon Tong is a primary care provider, practicing in Internal Medicine in Chino, California. Dr. Tong has been practicing medicine for over 15 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Obesity, Hypolipoproteinemia, Tangier Disease, Fish-Eye Disease, and Ureteroscopy.
Inland Pulmonary Medical Group
Jose Santiago is a primary care provider, practicing in Internal Medicine in Montclair, California. Dr. Santiago is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Parkinson's Disease, Apoplexy, Sepsis, Hernia Surgery, and Kidney Transplant.
Premiere Medical Group Of California
Ythanh Nguyen is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Peptic Ulcer, Sepsis, Necrosis, Endoscopy, and Colonoscopy.
Chaparral Medical Group Inc.
Nischita Merla is a Gastroenterologist in Upland, California. Dr. Merla is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.
Dwaraknath P. Reddy M.D.
Dwaraknath Reddy is a Gastroenterologist in Upland, California. Dr. Reddy is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Esophagitis, Gastrointestinal Bleeding, Painful Swallowing, Gastrectomy, and Gastrostomy.
Inland Family Healthcare Centers Inc.
Rick Hirsch is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Hirsch is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Multiple Myeloma, Hypertension, Familial Hypertension, Bone Marrow Aspiration, and Gastrostomy.
Last Updated: 02/22/2026
