The 20 Best Endoscopy Doctors near Rancho Cucamonga, CA
Find the Experts and Specialists who perform Endoscopy
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 Endoscopy. 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.
San Antonio Regional Hospital
Stuart Berry is a Radiologist practicing medicine in Upland, California. Dr. Berry is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Ascites, Pleurisy, Pleural Effusion, Bone Marrow Aspiration, and Stent Placement.
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 Endoscopy. 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.
ProHealth Partners A Medical Group Inc.
Gimha Gunawardana is a Geriatrics provider practicing medicine in Upland, California. Dr. Gunawardana is rated as an Advanced provider by MediFind in Endoscopy. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses End-Stage Renal Disease (ESRD), Sepsis, Pneumonia, Gastrostomy, and Endoscopy.
Chaparral Medical Group Inc.
Nischita Merla is a Gastroenterologist practicing medicine in Upland, California. Dr. Merla is rated as an Advanced provider by MediFind in Endoscopy. 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.
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 Endoscopy. 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.
San Bernardino Medical Orthopaedic Group Inc.
Kevin Phan is an Orthopedics provider practicing medicine in Rancho Cucamonga, California. Dr. Phan is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Invertebral Disc Disease, Spondylolisthesis, Retrograde Ejaculation, Laminectomy, and Spinal Fusion.
Inland Region Medical Group
Thomas Woodbury is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 37 years. Dr. Woodbury is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Kluver Bucy Syndrome, Hypertension, Gastrostomy, and Endoscopy. Dr. Woodbury is board certified in American Osteopathic Board Of Family Practice.
Chaparral Medical Group, Inc.
Daryoosh Valamanesh is an Internal Medicine specialist and an Endocrinologist practicing medicine in Rancho Cucamonga, California. He has been practicing medicine for over 47 years. Dr. Valamanesh is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Subacute Thyroiditis, Obesity, Gastrostomy, and Hernia Surgery. Dr. Valamanesh is board certified in American Board Internal Medicine.
Chaparral Medical Group, Inc.
Derrick Raptis is an Internal Medicine specialist and a Pulmonary Medicine provider practicing medicine in Rancho Cucamonga, California. He has been practicing medicine for over 21 years. Dr. Raptis is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Pneumonia, Chronic Obstructive Pulmonary Disease (COPD), Lung Metastases, Gastrostomy, and Endoscopy. Dr. Raptis is board certified in American Board Of Internal Medicine.
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 Experienced provider by MediFind in Endoscopy. 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.
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 Endoscopy. 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.
Upland Surgical Associates
Bryce Beseth is a General Surgeon practicing medicine in Upland, California. He has been practicing medicine for over 30 years. Dr. Beseth is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Necrosis, Hernia Surgery, and Colostomy. Dr. Beseth is board certified in American Board Of Surgery.
Ct Hung MD Inc.
Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as an Experienced provider by MediFind in Endoscopy. 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.
Inland Physicians Pulmonary Services
Rick Siriratsivawong is an Internal Medicine specialist and a Pulmonary Medicine provider practicing medicine in Upland, California. He has been practicing medicine for over 17 years. Dr. Siriratsivawong is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Pneumonia, Hospital-Acquired Pneumonia, Atypical Pneumonia, Gastrostomy, and Endoscopy. Dr. Siriratsivawong is board certified in American Board Of Internal Medicine.
Yangdong He Medical Corporation
Yangdong He is an Internal Medicine provider practicing medicine in Rancho Cucamonga, California. He has been practicing medicine for over 24 years. Dr. He is rated as an Experienced provider by MediFind in Endoscopy. His clinical expertise encompasses Biliary Dyskinesia, Liver Failure, End-Stage Renal Disease (ESRD), Relapsing Multiple Sclerosis (RMS), and Endoscopy. Dr. He is board certified in American Board Of Internal Medicine.
Hadi, Ghassan, E., M.D., Inc.
Ghassan Hadi is a primary care provider, practicing in Internal Medicine in Upland, California. He has been practicing medicine for over 38 years. Dr. Hadi is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, End-Stage Renal Disease (ESRD), Sepsis, Gastrostomy, and Endoscopy. Dr. Hadi is board certified in American Board Of Internal Medicine.
ProHealth Partners A Medical Group Inc.
Mansurur Khan is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Khan is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Renovascular Hypertension, Stroke, Hypertensive Heart Disease, Gastrostomy, and Endoscopy.
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 Endoscopy. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hypertensive Heart Disease, Acute Kidney Failure, Multisystem Inflammatory Syndrome in Children (MIS-C), Gastrostomy, and Endoscopy.
San Antonio Regional Hospital
Bilal Rayes is a Palliative Medicine provider practicing medicine in Upland, California. Dr. Rayes is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Spontaneous Coronary Artery Dissection (SCAD), Heart Failure with Preserved Ejection Fraction (HFpEF), Saddle Pulmonary Embolism, Hemorrhoidectomy, and Endoscopy.
Last Updated: 04/28/2026
