The 20 Best Colitis Doctors Near Me in Ontario, CA
Find the Top Colitis Experts and Specialists
The 20 Best Colitis Doctors near Ontario, CA
MediFind found 153 doctor with experience in Colitis near Ontario, CA. Of these, 134 are Experienced, 16 are Advanced and 3 are Distinguished.
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 Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Milk-Alkali Syndrome, Hypercalcemia, Type 2 Diabetes (T2D), Hormone Replacement Therapy (HRT), and Parathyroidectomy.
Ct Hung MD Inc.
Chuang-ti Hung is a Gastroenterologist in Upland, California. Dr. Hung is rated as an Advanced provider by MediFind in the treatment of Colitis. 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 an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy.
Kevin Jenkins, Do, Inc.
Kevin Jenkins is an Internal Medicine provider in Upland, California. Dr. Jenkins has been practicing medicine for over 53 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy.
Premier Family Medicine Associates, Inc
Saman Aboudi is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Aboudi is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Tracheitis, Cellulitis, Lymphangitis, and Sinusitis.
Hussain Al-Darsani M.D. A Professional Corp.
Hussain Al is an Internal Medicine provider in Chino, California. Dr. Al is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Gastritis, Gastrostomy, and Gastrectomy.
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 Colitis. 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 Colitis. Her top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy.
Unicare Community Health Center Inc.
William Paley is a primary care provider, practicing in Family Medicine in Ontario, California. Dr. Paley is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Obesity in Children, Obesity, Food Allergy, and Fish-Eye Disease.
ProHealth Partners A Medical Group Inc.
Azhar Majeed is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Majeed is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hypertensive Heart Disease, Acute Kidney Failure, COVID-19, Gastrostomy, and Endoscopy.
Edge Family Medicine
Mike Zuniga is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Zuniga has been practicing medicine for over 20 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Cirrhosis.
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 Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy.
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 Colitis. His top areas of expertise are Parkinson's Disease, Apoplexy, Sepsis, Hernia Surgery, and Kidney Transplant.
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 Colitis. Her top areas of expertise are Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.
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 Colitis. Her top areas of expertise are Peptic Ulcer, Sepsis, Necrosis, Endoscopy, and Colonoscopy.
San Antonio Regional Medical Group Inc.
Ai-jen Wang is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Wang is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Necrosis, Sepsis, Atypical Pneumonia, Colonoscopy, and Endoscopy.
Mukesh Amin MD & Tejinder Singh MD Inc.
Tejinder Singh is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Hypertension, Gastrostomy, and Endoscopy.
Michael Chai MD Inc.
Michael Chai is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Chai is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Necrotizing Vasculitis, Small Cell Lung Cancer (SCLC), Lung Cancer, Myringotomy, and Gastrostomy.
Hadi, Ghassan, E., M.D., Inc.
Ghassan Hadi is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Hadi has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Acute Kidney Failure, End-Stage Renal Disease (ESRD), Sepsis, Gastrostomy, and Endoscopy.
J.Singh D.O. Inc
Jhujhar Singh is a primary care provider, practicing in Geriatrics in Montclair, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Sepsis, Shapiro Syndrome, Dopamine Beta-Hydroxylase Deficiency, Gastrostomy, and Endoscopy.
Last Updated: 02/22/2026
