The 20 Best Diarrhea Doctors Near Me in Ontario, CA
Find the Top Diarrhea Experts and Specialists
Ct Hung MD Inc.
Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 47 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Trichohepatoenteric Syndrome, Hemorrhoids, Gastrectomy, and Gastrostomy.
Basim Z. Abdelkarim, M.D., Inc.
Basim Abdelkarim is a Gastroenterologist practicing medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Abdelkarim is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 67 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy. Dr. Abdelkarim is board certified in American Board Of Internal Medicine.
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. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Empyema, Sinusitis, Cellulitis, and Vertigo.
Basim Z. Abdelkarim, M.D., Inc.
Priyanka Yaramada is a Gastroenterologist practicing medicine in Upland, California. She has been practicing medicine for over 18 years. Dr. Yaramada is rated as an Advanced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Yaramada is board certified in American Board Of Internal Medicine.
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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. She is also highly rated in 35 other conditions, according to our data. Her clinical expertise encompasses 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. She is also highly rated in 39 other conditions, according to our data. Her clinical expertise encompasses Cellulitis, Parinaud Oculoglandular Syndrome, Otitis, and Peptic Ulcer.
Carlos R. Vigil DO A Professional Corp.
Hussein Abidali is a Gastroenterologist practicing medicine in Rancho Cucamonga, California. Dr. Abidali is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses 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. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy. Dr. Tieng is board certified in Internal Medicine. Dr. Tieng is currently accepting new patients.
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. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Cirrhosis.
Kong-Tay Wu M.D Inc
Catareya Liep is a Pediatrics provider practicing medicine in Ontario, California. Dr. Liep is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Diarrhea.
Ravinder Singh, Md, Inc.
Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 108 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Liver Transplant, and Knee Replacement. Dr. Singh is board certified in American Board Of Family Medicine.
Perez And Perez Medical Corp
Glenn Perez is a Pediatrics provider practicing medicine in Upland, California. He has been practicing medicine for over 48 years. Dr. Perez is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses Obesity in Children, Diarrhea, and Croup. Dr. Perez is board certified in American Board Of Pediatrics.
Cucamonga Valley Medical Group, Inc.
Muhammad Mowjood is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 26 years. Dr. Mowjood is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Obesity, Methylmalonic Acidemia with Homocystinuria, Hypermethioninemia, and Sulfite Oxidase Deficiency. Dr. Mowjood is board certified in American Osteopathic Board Of Family Practice.
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 clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Osteomyelitis in Children.
Cucamonga Valley Medical Group, Inc.
Brandon Tong is a primary care provider, practicing in Internal Medicine in Chino, California. He has been practicing medicine for over 15 years. Dr. Tong is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Obesity, Familial Hypobetalipoproteinemia, Chorea-Acanthocytosis, Familial HDL Deficiency, and Ureteroscopy. Dr. Tong is board certified in American Osteopathic Board Of Internal Medicine.
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. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Apoplexy, Sepsis, Gastrointestinal Bleeding, 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. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Peptic Ulcer, Sepsis, Necrosis, Endoscopy, and Colonoscopy.
Chaparral Medical Group Inc.
Nischita Merla is a Gastroenterologist practicing medicine in Upland, California. Dr. Merla is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 36 other conditions, according to our data. Her clinical expertise encompasses Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.
Dwaraknath P. Reddy M.D.
Dwaraknath Reddy is a Gastroenterologist practicing medicine in Upland, California. Dr. Reddy is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses 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. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Multiple Myeloma, Glucocorticoid-Remediable Aldosteronism, Hypertension, Bone Marrow Aspiration, and Gastrostomy.
Last Updated: 04/28/2026
