The 20 Best Diarrhea Doctors Near Me in Lake Forest, IL
Find the Top Diarrhea Experts and Specialists
Advocate Medical Group Gastroenterology
Andrew Mazulis is a Gastroenterologist practicing medicine in Libertyville, Illinois. Dr. Mazulis is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Sclerosing Mesenteritis, Viral Gastroenteritis, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy. Dr. Mazulis is board certified in American Board Of Internal Medicine, Gastroenterology.
Alexander Tosiou is a Gastroenterologist practicing medicine in Lake Forest, Illinois. He has been practicing medicine for over 33 years. Dr. Tosiou is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Lower Esophageal Ring, Benign Esophageal Stricture, Diarrhea, Gastrectomy, and Endoscopy. Dr. Tosiou is board certified in American Board Of Internal Medicine - Gastroenterology (Certified).
Frank Martini is a Gastroenterologist practicing medicine in Lake Forest, Illinois. He has been practicing medicine for over 44 years. Dr. Martini is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Visceromegaly, Collagenous Colitis, Endoscopy, and Gastrectomy. Dr. Martini is board certified in American Board Of Internal Medicine - Gastroenterology (Certified).
Asamad Soudagar is a Gastroenterologist practicing medicine in Lake Forest, Illinois. He has been practicing medicine for over 17 years. Dr. Soudagar is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Familial Pancreatic Cancer, Bile Duct Obstruction, Bile Duct Stricture, Gastrectomy, and Endoscopy. Dr. Soudagar is board certified in American Board Of Internal Medicine - Gastroenterology (Certified).
Advocate Medical Group Primary Care
Bincy Joseph is a primary care provider, practicing in Family Medicine in Libertyville, Illinois. Dr. Joseph is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Sitosterolemia. Dr. Joseph is board certified in American Board Of Family Medicine.
Endeavor Health Medical Group
Omar Khan, MD, a gastroenterologist at Endeavor Health, specializes in inflammatory bowel disease, including Crohn’s disease, ulcerative colitis and hereditary colorectal cancer syndromes. He takes a personal, team-based approach to care, helping patients manage their condition through all stages of health. Dr. Khan is also passionate about advancing predictive tools to better match treatments with individual needs. Dr. Khan is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Hemorrhagic Proctocolitis, Ulcerative Colitis, Crohn's Disease, Gastrectomy, and Endoscopy. Dr. Khan is board certified in American Board Of Internal Medicine.
Endeavor Health Medical Group
Lesley Rhee, MD, a gastroenterologist at Endeavor Health, evaluates and treats conditions affecting the digestive system, including the esophagus, stomach, intestines and liver. She provides diagnostic procedures and therapeutic care to support patients in managing gastrointestinal health. Dr. Rhee is rated as an Advanced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Hemorrhoids, Endoscopy, and Gastrectomy. Dr. Rhee is board certified in American Board Of Internal Medicine.
Endeavor Health Medical Group
Joel Retsky, MD, a gastroenterologist at Endeavor Health, specializes in inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, as well as colonoscopy for colon cancer screening. He completed advanced training at the University of Chicago and served on faculty before joining community-based practice. Dr. Retsky is committed to delivering the same level of care he would want for his own family. Dr. Retsky is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy. Dr. Retsky is board certified in American Board Of Internal Medicine.
GI Partners Of Illinois, LLC
Tarek Almouradi is an Internal Medicine provider practicing medicine in Libertyville, Illinois. Dr. Almouradi is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 76 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Watermelon Stomach, Hereditary Pancreatitis, Gastrectomy, and Endoscopy. Dr. Almouradi is board certified in American Board Of Internal Medicine, Gastroenterology.
Illinois Gastroenterology Group, LLC
Kevin Liebovich is a Gastroenterologist practicing medicine in Gurnee, Illinois. Dr. Liebovich is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 51 other conditions, according to our data. His clinical expertise encompasses Trichohepatoenteric Syndrome, Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gastrectomy, and Endoscopy. Dr. Liebovich is board certified in American Board Of Internal Medicine, Gastroenterology.
Illinois Gastroenterology Group, LLC
Jonathan Rosenberg is a Gastroenterologist practicing medicine in Gurnee, Illinois. Dr. Rosenberg is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy. Dr. Rosenberg is board certified in American Board Of Internal Medicine, Gastroenterology.
Illinois Gastroenterology Group, LLC
Walter Glaws is a Gastroenterologist practicing medicine in Gurnee, Illinois. Dr. Glaws is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 45 other conditions, according to our data. His clinical expertise encompasses Ulcerative Colitis, Irritable Bowel Syndrome (IBS), Chronic Erosive Gastritis, Gastrectomy, and Gastrostomy. Dr. Glaws is board certified in American Board Of Internal Medicine, Gastroenterology.
Illinois Gastroenterology Group, LLC
Amit Kalra is a Gastroenterologist practicing medicine in Gurnee, Illinois. Dr. Kalra is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Hemorrhoids, Colonoscopy, and Gastrectomy. Dr. Kalra is board certified in American Board Of Internal Medicine, Gastroenterology.
Comprehensive Gastrointestinal Health
Gene Chiao is a Pharmacologist and a Gastroenterologist practicing medicine in Northbrook, Illinois. Dr. Chiao is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Heartburn, Benign Esophageal Stricture, Colonoscopy, and Gastrectomy. Dr. Chiao is board certified in American Board Of Internal Medicine.
Comprehensive Gastrointestinal Health
Jeffrey Nathanson is a Gastroenterologist practicing medicine in Northbrook, Illinois. Dr. Nathanson is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Heartburn, Gas Bloat Syndrome, Endoscopy, and Gastrectomy. Dr. Nathanson is board certified in American Board Of Internal Medicine.
Illinois Gastroenterology Group, LLC
Ronald Bloom is a Gastroenterologist practicing medicine in Glenview, Illinois. Dr. Bloom is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Trichohepatoenteric Syndrome, Diverticular Disease, Endoscopy, and Gastrectomy. Dr. Bloom is board certified in American Board Of Internal Medicine, Gastroenterology.
Endeavor Health Medical Group
John Lin, MD, an internal medicine physician at Endeavor Health, provides primary care to adults with a focus on long-term health and preventive strategies. Inspired by early experiences with his father, a physician, Dr. Lin values the relationships he builds across generations of families. He approaches care as a collaborative journey, helping patients define their goals and connecting them with the right support along the way. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 28 other conditions, according to our data. His clinical expertise encompasses Graves Disease, Dementia, Thyroid Storm, and Tracheitis. Dr. Lin is board certified in American Board Of Internal Medicine.
Endeavor Health Medical Group
Michael J. Sommerfeld, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with a focus on preventive health, chronic condition management and wellness support. He works with patients to develop care plans that promote long-term health outcomes. Dr. Sommerfeld is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Sommerfeld is board certified in American Board Of Internal Medicine.
Endeavor Health Medical Group
Jason T. Garti, MD, an internal medicine specialist at Endeavor Health, provides comprehensive primary care for adults, with a focus on preventive care, physical exams and the management of chronic conditions such as hypertension. Dr. Garti works closely with patients to support long-term health goals and provides guidance on lifestyle changes that promote overall wellbeing. Dr. Garti is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hives, Stroke, Muscle Invasive Bladder Cancer, and Bronchitis. Dr. Garti is board certified in American Board Of Internal Medicine.
Endeavor Health Medical Group
Vivian Salazar, MD, an internal medicine physician at Endeavor Health, provides comprehensive, evidence-based care for adults 18 and older. She focuses on screening, prevention and wellness, partnering with patients to manage chronic conditions such as diabetes and high blood pressure. Dr. Salazar coordinates care with subspecialists when needed and is interested in emerging innovations in artificial intelligence, diabetes and obesity therapies, and cancer care. She is dedicated to helping patients achieve their health goals through prevention, early intervention and shared decision-making. Dr. Salazar is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 16 other conditions, according to our data. Her clinical expertise encompasses Sitosterolemia, Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, and Folate Deficiency. Dr. Salazar is board certified in American Board Of Internal Medicine.
Last Updated: 04/28/2026



















