The 20 Best Ulcerative Colitis Doctors Near Me in Upland, CA
Find the Top Ulcerative Colitis 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 Ulcerative Colitis. 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.
Ct Hung MD Inc.
Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. 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 an Advanced provider by MediFind in the treatment of Ulcerative Colitis. 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.
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 Ulcerative Colitis. 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.
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 Experienced provider by MediFind in the treatment of Ulcerative Colitis. 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.
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 Ulcerative Colitis. 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.
Susan Biegel MD Inc.
Susan Biegel is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Biegel is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Sitosterolemia, Vitamin D Deficiency, Hypervitaminosis D, and High Cholesterol.
Kevin Jenkins, Do, Inc.
Kevin Jenkins is an Internal Medicine provider practicing medicine in Upland, California. He has been practicing medicine for over 53 years. Dr. Jenkins is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Jenkins is board certified in American Osteopathic Board Of Internal Medicine.
Chaparral Medical Group Inc.
Ashok Sharma is a primary care provider, practicing in Internal Medicine in Claremont, California. Dr. Sharma is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Obesity, Attenuated Familial Adenomatous Polyposis, and Juvenile Polyposis Syndrome.
Carlos R. Vigil DO A Professional Corp.
Hussein Abidali is a Gastroenterologist practicing medicine in Rancho Cucamonga, California. Dr. Abidali is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. 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.
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Lester Holstein is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Holstein is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Acne, Hypertension, and Glucocorticoid-Remediable Aldosteronism.
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 Ulcerative Colitis. 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.
Platinum Digestive Health
Bhaveshkumar Patel is an Internal Medicine provider practicing medicine in Pomona, California. He has been practicing medicine for over 19 years. Dr. Patel is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 69 other conditions, according to our data. His clinical expertise encompasses Swallowing Difficulty, Painful Swallowing, Bile Duct Obstruction, Endoscopy, and Gastrostomy. Dr. Patel is board certified in American Board Of Internal Medicine.
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Muhammad Hammami is a Gastroenterologist practicing medicine in Chino, California. Dr. Hammami is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Ulcerative Colitis, Hepatitis A, Colonoscopy, and Endoscopy.
Ontario Vineyard Medical Offices
Janet Yang is a Gastroenterologist practicing medicine in Ontario, California. Dr. Yang is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Gastrointestinal Bleeding, Esophageal Varices, Ulcerative Colitis, Irritable Bowel Syndrome (IBS), and Endoscopy. Dr. Yang is currently accepting new patients.
Kaiser Permanente Ontario Medical Center - Gastroenterology Department
Nehali Patel is a Gastroenterologist practicing medicine in Ontario, California. She has been practicing medicine for over 18 years. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Hemorrhoids, Irritable Bowel Syndrome (IBS), Gas Bloat Syndrome, Esophageal Varices, and Endoscopy. Dr. Patel is currently accepting new patients.
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Kenneth Lee is a Gastroenterologist practicing medicine in Pomona, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Hepatitis, Visceromegaly, Enlarged Liver, Endoscopy, and Gastrectomy.
Inland Empire Medical Network Inc.
Maher Tama is a Gastroenterologist practicing medicine in Pomona, California. Dr. Tama is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Hepatitis, Familial Adenomatous Polyposis, Colonoscopy, and Endoscopy.
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Sudhir Reddy is an Internal Medicine provider practicing medicine in Chino, California. Dr. Reddy is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Gastroesophageal Reflux Disease (GERD), Hemorrhoids, Gastrostomy, and Endoscopy.
Hussain Al-Darsani M.D. A Professional Corp.
Hussain Al is an Internal Medicine provider practicing medicine in Chino, California. Dr. Al is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Gastritis, Gastrostomy, and Gastrectomy.
Last Updated: 04/28/2026
