The 20 Best Colonoscopy Doctors near rialto, CA
Find the Experts and Specialists who perform Colonoscopy
San Bernardino Gastroenterology Associates
George Saffouri is a Gastroenterologist practicing medicine in Rialto, California. Dr. Saffouri is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Diverticular Disease, Chronic Erosive Gastritis, Endoscopy, and Colonoscopy. Dr. Saffouri is board certified in Internal Medicine (Sub: Gastroenterology) and Internal Medicine. Dr. Saffouri is currently accepting new patients.
Sang Kim is a Holistic Medicine provider practicing medicine in Fontana, California. Mr. Kim is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Cervical Myelopathy, Fractured Spine, Laminectomy, and Colonoscopy.
Jerry L. Pettis Memorial Veterans' Hospital
Mohammed Ali is a Gastroenterologist practicing medicine in Loma Linda, California. Dr. Ali is rated as a Distinguished provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Eosinophilic Colitis, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Endoscopy.
Kaiser Permanente Fontana Medical Center
Thoyaja Koritala is a primary care provider, practicing in Internal Medicine in Fontana, California. She has been practicing medicine for over 18 years. Dr. Koritala is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses COVID-19, Sepsis, Necrosis, Endoscopy, and Colonoscopy. Dr. Koritala is currently accepting new patients.
Fontana Medical Center
Syed Yusuf is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Yusuf is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Gastrointestinal Bleeding, Pneumonia, Hospital-Acquired Pneumonia, Endoscopy, and Colonoscopy.
Kaiser Permanente Fontana Medical Center
Ashley Alexander is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Alexander is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Sepsis, Hereditary Pancreatitis, and Colonoscopy.
Kaiser Permanente Fontana Medical Center
Jonnel Constantino is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Constantino is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Parapneumonic Pleural Effusion, Ascites, Sepsis, Gastrostomy, and Colonoscopy.
Kaiser Permanente Fontana Medical Center
Gregory Shimizu is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Shimizu is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Sepsis, Heart Attack, Apoplexy, Gastrostomy, and Endoscopy.
Kaiser Permanente Fontana Medical Center
Hoveda Mufti is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Mufti is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Apoplexy, Heart Attack, Sepsis, Thyroidectomy, and Pacemaker Implantation.
Kaiser Permanente Fontana Medical Center
Elnaz Rakhshan is a primary care provider, practicing in Internal Medicine in Fontana, California. She has been practicing medicine for over 18 years. Dr. Rakhshan is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Sepsis, Gastrointestinal Bleeding, Pneumonia, Endoscopy, and Atherectomy.
Derek Nguyen Md, Inc.
Derek Nguyen is a primary care provider, practicing in Internal Medicine in Riverside, California. Dr. Nguyen is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Diffuse Large B-Cell Lymphoma (DLBCL), Large-Cell Immunoblastic Lymphoma, Gastrostomy, and Endoscopy. Dr. Nguyen is board certified in American Board Of Family Medicine. Dr. Nguyen is currently accepting new patients.
Osorio, Ruben, M.D., Inc.
Ruben Osorio is a General Surgeon practicing medicine in San Bernardino, California. Dr. Osorio is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Perforation, Ogilvie Syndrome, Cholecystitis, Hernia Surgery, and Gastrostomy. Dr. Osorio is board certified in American Board Of Surgery and Surgery General Surgery. Dr. Osorio is currently accepting new patients.
Sound Physicians
Muhammad Arif is a primary care provider, practicing in Family Medicine in San Bernardino, California. Dr. Arif is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Menetrier Disease, Gastrointestinal Stromal Tumor, Gastritis, Endoscopy, and Colonoscopy. Dr. Arif is board certified in Family Medicine. Dr. Arif is currently accepting new patients.
Loma Linda Univ Anesthesiology Medical Group Inc
Nikhil Thiruvengadam is a Gastroenterologist practicing medicine in Loma Linda, California. Dr. Thiruvengadam is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hereditary Pancreatitis, Choledocholithiasis, Bile Duct Obstruction, Endoscopy, and Colonoscopy.
Desert Valley Hospital
Henry Lin is a Gastroenterologist practicing medicine in Loma Linda, California. Dr. Lin is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Enlarged Liver, Anemia, Gastrectomy, and Endoscopy.
Office
Christian Jackson is a Gastroenterologist practicing medicine in Loma Linda, California. Dr. Jackson is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Gastrointestinal Bleeding, Colorectal Cancer, Endoscopy, and Colonoscopy.
Arshad J. Sial, MD Private Practice
Arshad Sial is a primary care provider, practicing in Internal Medicine in San Bernardino, California. Dr. Sial is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Cellulitis, Acute Kidney Failure, Pleurisy, Gastrostomy, and Endoscopy. Dr. Sial is board certified in Internal Medicine. Dr. Sial is currently accepting new patients.
Sound Physicians
Baker Hillawy is a primary care provider, practicing in Internal Medicine in San Bernardino, California. Dr. Hillawy is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Apoplexy, Sepsis, Peptic Ulcer, Endoscopy, and Gastrostomy. Dr. Hillawy is board certified in Internal Medicine.
Sound Physicians
Mohammed Shweikeh is a primary care provider, practicing in Family Medicine in San Bernardino, California. Dr. Shweikeh is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Sepsis, Peptic Ulcer, Chronic Obstructive Pulmonary Disease (COPD), Endoscopy, and Colonoscopy. Dr. Shweikeh is board certified in Family Medicine. Dr. Shweikeh is currently accepting new patients.
Sound Physicians
Saliar Rustem is a primary care provider, practicing in Internal Medicine in San Bernardino, California. Dr. Rustem is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Atypical Pneumonia, Hospital-Acquired Pneumonia, Sepsis, Colonoscopy, and Endoscopy. Dr. Rustem is currently accepting new patients.
Last Updated: 09/26/2026


