The 20 Best Diarrhea Doctors Near Me in Rancho Cucamonga, CA
Find the Top Diarrhea Experts and Specialists
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.
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.
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.
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.
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.
Kaiser Permanente Fontana Medical Center
Andrea Thorp is a Pediatrics provider practicing medicine in Fontana, California. Dr. Thorp is rated as an Advanced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Diarrhea, Croup, Asthma in Children, and Gastrostomy.
Channell Family Medical Group
Patricia Guevara is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. She has been practicing medicine for over 38 years. Dr. Guevara is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Silent Thyroiditis, Precocious Puberty, Vitamin D Deficiency, and Sitosterolemia. Dr. Guevara is board certified in American Board Of Family Medicine.
Little Star Healthcare Little Star Pediatric Urgent Care
Ravi Garehgrat is a Pediatrics provider practicing medicine in Rancho Cucamonga, California. Dr. Garehgrat is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Croup, Roseola, Aseptic and Alopecic Nodules of Scalp (AANS), and Diarrhea.
Harvey D. Cohen M.D. Inc.
Harvey Cohen is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Obesity.
Filomena S. Pascual M.D. Inc.
Filomena Pascual is a Pediatrics provider practicing medicine in Rancho Cucamonga, California. Dr. Pascual is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Obesity in Children, Aseptic and Alopecic Nodules of Scalp (AANS), Asthma in Children, and Autism Spectrum Disorder.
Harvey D. Cohen M.D. Inc.
Nyein Tint is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. She has been practicing medicine for over 17 years. Dr. Tint 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 Obesity, Obesity in Children, High Cholesterol, and Vitamin D Deficiency.
Our Family Medical Group Inc.
Hetalben Makwana is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Makwana is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Osteomyelitis in Children, Breast Cancer, Obesity, and High Cholesterol.
Carlos R. Vigil DO A Professional Corp.
Carlos Vigil is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Vigil is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, Renovascular Hypertension, End-Stage Renal Disease (ESRD), Gastrostomy, and Endoscopy.
Norton Delgado Family Medicine
Laura Norton is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Norton is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Vitamin D Deficiency, High Cholesterol, Type 2 Diabetes (T2D), and Familial Hypertension.
Cucamonga Valley Medical Group
Eric Bekemeier is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Bekemeier is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Obesity, Cirrhosis, Familial Combined Hyperlipidemia, and Xanthoma.
Fagan, John A. Family Practice, Inc.
John Fagan is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 40 years. Dr. Fagan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 45 other conditions, according to our data. His clinical expertise encompasses Ehlers-Danlos Syndrome (EDS), Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. Dr. Fagan is board certified in American Board Of Family Medicine.
Rancho Cucamonga Medical Offices
Iyad Hanna is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Hanna is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Maturity Onset Diabetes of the Young, and Chronic Cough.
Rapid Care
Zaher Azzawi is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 46 years. Dr. Azzawi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Orbital Cellulitis, Tracheitis, Cellulitis, and Lymphangitis. Dr. Azzawi is board certified in American Board Of Internal Medicine.
Grove Internal Medicine, Inc.
Sean To is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 28 years. Dr. To is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Familial Hypertension.
Children's Choice Pediatrics
Rene Salhab is a Pediatrics provider practicing medicine in Rancho Cucamonga, California. He has been practicing medicine for over 24 years. Dr. Salhab 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 Obesity in Children, Roseola, Undescended Testicle, and Delayed Growth. Dr. Salhab is board certified in American Board Of Pediatrics.
Last Updated: 04/28/2026
