The 20 Best Diarrhea Doctors Near Me in Fullerton, CA
Find the Top Diarrhea Experts and Specialists
The 20 Best Diarrhea Doctors near Fullerton, CA
MediFind found 522 doctor with experience in Diarrhea near Fullerton, CA. Of these, 494 are Experienced, 26 are Advanced and 2 are Distinguished.
Sajen Mathews is a Gastroenterologist in Fullerton, California. Dr. Mathews is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Benign Esophageal Stricture, Endoscopy, and Gastrostomy.
Scott Sainburg is a Gastroenterologist in Fullerton, California. Dr. Sainburg is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Benign Esophageal Stricture, Lower Esophageal Ring, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Sainburg is currently accepting new patients.
Erika Hoyos is a Gastroenterologist in Fullerton, California. Dr. Hoyos is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Hemorrhoids, Intestinal Cancer, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy. Dr. Hoyos is currently accepting new patients.
Eugene Yoon is a Gastroenterologist in Fullerton, California. Dr. Yoon is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Choledocholithiasis, Angiodysplasia of the Colon, Ascites, Endoscopy, and Gastrostomy. Dr. Yoon is currently accepting new patients.
Hyder Jamal is a Gastroenterologist in Fullerton, California. Dr. Jamal is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Barrett Esophagus, Endoscopy, and Gastrostomy. Dr. Jamal is currently accepting new patients.
Patrick Koo is a Gastroenterologist in Fullerton, California. Dr. Koo is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy. Dr. Koo is currently accepting new patients.
Yee Miao is a Gastroenterologist in Fullerton, California. Dr. Miao is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Jaundice, Hepatitis B, Hepatitis, and Gastroesophageal Reflux Disease (GERD). Dr. Miao is currently accepting new patients.
Associated Gastroenterology
Dennis Riff is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Riff has been practicing medicine for over 55 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Helicobacter Pylori Infection, Campylobacter Infection, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Gastrectomy.
Associated Gastroenterology
Brian Riff is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Riff has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy.
Digestive And Liver Disease Specialists
Ravindra Alapati is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Alapati has been practicing medicine for over 45 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Visceromegaly, Bile Duct Obstruction, Diverticular Disease, Gastrostomy, and Gastrectomy.
Choice Health Network
Dr. Leila Yoonessi is a pediatric pulmonologist practicing in Long Beach, CA. She practices pediatric pulmonology and general pediatrics. Dr. Yoonessi holds a BA in psychobiology with a minor in religious studies from Occidental College. She graduated cum laude and was awarded a psychobiology departmental award for her academic achievements. She then studied at the University of Southern California where she earned Master's in Public Health with a concentration in health care promotion. She went on to complete her medical degree at New York Medical College. She relocated to California to rejoin her family where she completed her pediatric residency at Los Angeles County University Southern California. She is currently a board certified pediatrician who has several research interests. Publications include Progression and Prognostic Indicators of Bronchial and Alveolar Disease in Children with Sickle Cell Disease, and Environmental factors contributing to lung function and growth velocity decline in Sickle Cell Disease.Above all, she remains committed to patient advocacy, research, integrative work, medicine, preventive medicine, holistic health, and non-profit work. Dr Yoonessi enjoys horseback riding, hiking with her 2 Shiba Inus and camping for fun. Dr Yoonessi Jr. is overjoyed to be working alongside her mother who has always been dedicated to evidence based medicine, charity work, and community outreach projects!. Dr. Yoonessi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Conjunctivitis with Pseudomembrane, Roseola, and Diarrhea.
Caduceus Medical Group
Dennis Ponzio is a primary care provider, practicing in Pediatrics and Family Medicine in Yorba Linda, California. Dr. Ponzio has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.
Michael Wang is a Pediatric Gastroenterologist in Orange, California. Dr. Wang is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Eosinophilic Esophagitis, Trichohepatoenteric Syndrome, Diarrhea, and Celiac Disease. Dr. Wang is currently accepting new patients.
Oc Urgent Care Medical Group
Nahla Salem is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Salem has been practicing medicine for over 21 years and is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Acute Cystitis, Otitis, Cellulitis, and Urinary Tract Infection in Children.
Arun Patel is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Maturity Onset Diabetes of the Young, Neuralgia, Vertigo, Endoscopy, and Gastrostomy.
St. Jude Heritage Fullerton-Gastroenterology
Kumkum Patel is a Gastroenterologist in Fullerton, California. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Gastric Dysmotility, Endoscopy, and Colonoscopy.
National Ambulatory Hernia Institute
Martin Carr is a Gastroenterologist in Fullerton, California. Dr. Carr is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Neuroendocrine Tumor, Gas Bloat Syndrome, Visceromegaly, and Enlarged Liver.
Associated Gastroenterology
Kevin Kuettel is a Gastroenterologist in Anaheim, California. Dr. Kuettel has been practicing medicine for over 43 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Erosive Gastritis, Hiatal Hernia, Congenital Diaphragmatic Hernia, Gastrectomy, and Gastrostomy.
Ambika Bali MD Inc
Ambika Bali is a Gastroenterologist in Anaheim, California. Dr. Bali has been practicing medicine for over 52 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Hemorrhoids, Menetrier Disease, Heartburn, Gastrectomy, and Colonoscopy.
AHMC Anaheim Regional Medical Center
Lakeisha Cox is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Cox is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Lymphangitis, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.
Last Updated: 02/22/2026


