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 highly rated in 40 conditions, according to our data. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy.

Shailesh Bajaj, MD, a gastroenterologist at Endeavor Health, has been caring for patients for more than 17 years. He treats a wide range of digestive conditions, including cancers of the GI tract, and embraces new modalities that improve patient outcomes and comfort. Dr. Bajaj believes in treating every patient with the same care and respect he would offer his own family. Dr. Bajaj is highly rated in 34 conditions, according to our data. His top areas of expertise are Cholangitis, Sclerosing Cholangitis, Bile Duct Obstruction, Gastrectomy, and Pancreatectomy.

Jeffrey Nathanson is a Gastroenterologist in Northbrook, Illinois. Dr. Nathanson is highly rated in 25 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Heartburn, Gas Bloat Syndrome, Endoscopy, and Gastrectomy.

Gene Chiao is a Pharmacologist and a Gastroenterologist in Northbrook, Illinois. Dr. Chiao is highly rated in 24 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Heartburn, Benign Esophageal Stricture, Colonoscopy, and Gastrectomy.

Frank Martini is a Gastroenterologist in Lake Forest, Illinois. Dr. Martini has been practicing medicine for over 44 years is highly rated in 15 conditions, according to our data. His top areas of expertise are Diverticular Disease, Visceromegaly, Collagenous Colitis, Endoscopy, and Gastrectomy.

Andrew Mazulis is a Gastroenterologist in Libertyville, Illinois. Dr. Mazulis is highly rated in 3 conditions, according to our data. His top areas of expertise are Sclerosing Mesenteritis, Viral Gastroenteritis, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

Kenneth Chi is a Gastroenterologist in Glenview, Illinois. Dr. Chi is highly rated in 44 conditions, according to our data. His top areas of expertise are Jaundice, Angiodysplasia of the Colon, Cholangiocarcinoma (Bile Duct Cancer), Endoscopy, and Gastrostomy.

Mani Mahdavian is a Gastroenterologist in Des Plaines, Illinois. Dr. Mahdavian is highly rated in 41 conditions, according to our data. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Diverticular Disease, Pancreatic Cancer, Endoscopy, and Gastrostomy.

Andrew Scott Ross, MD, a gastroenterologist at Endeavor Health, specializes in diagnosing and treating conditions affecting the digestive system. He provides care for patients with gastrointestinal disorders ranging from reflux and ulcers to more complex conditions requiring advanced procedures. Dr. Ross uses evidence-based practices to guide treatment planning and collaborates with patients to manage symptoms and improve digestive health. His expertise supports both preventive screenings and ongoing management of chronic gastrointestinal conditions. Dr. Ross is highly rated in 32 conditions, according to our data. His top areas of expertise are Hereditary Pancreatitis, Barrett Esophagus, Acute Pancreatitis, Endoscopy, and Colonoscopy.

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 highly rated in 24 conditions, according to our data. His top areas of expertise are Hemorrhagic Proctocolitis, Ulcerative Colitis, Crohn's Disease, Gastrectomy, and Endoscopy.

Nina Merel is a Gastroenterologist in Glenview, Illinois. Dr. Merel is highly rated in 20 conditions, according to our data. Her top areas of expertise are Heartburn, Gastric Dysmotility, Gas Bloat Syndrome, and Hemorrhoids.

Jonathan Williams is a Gastroenterologist in Glenview, Illinois. Dr. Williams is highly rated in 20 conditions, according to our data. His top areas of expertise are Gastric Dysmotility, Tenesmus, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.

Ronald Bloom is a Gastroenterologist in Glenview, Illinois. Dr. Bloom is highly rated in 17 conditions, according to our data. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Diverticular Disease, Endoscopy, and Gastrectomy.

Alexander Tosiou is a Gastroenterologist in Lake Forest, Illinois. Dr. Tosiou has been practicing medicine for over 33 years is highly rated in 16 conditions, according to our data. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Diarrhea, Gastrectomy, and Endoscopy.

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 highly rated in 14 conditions, according to our data. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Hemorrhoids, Endoscopy, and Gastrectomy.

Susannah E. Spiess, MD, a gastroenterologist at Endeavor Health, specializes in general gastroenterology, women’s digestive health and colorectal cancer screening. She provides care for conditions such as inflammatory bowel disease, irritable bowel syndrome and colorectal cancer. Dr. Spiess performs a wide range of endoscopic procedures including colonoscopy, EGD and small bowel enteroscopy. She also speaks German, expanding her ability to connect with a diverse patient population. Dr. Spiess is highly rated in 14 conditions, according to our data. Her top areas of expertise are Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Turcot Syndrome, Colonoscopy, and Gastrectomy.

Ioannis Economou, MD, a gastroenterologist at Endeavor Health, specializes in inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis. He serves as Director of the Section for Inflammatory Bowel Diseases and brings extensive clinical, academic and research experience from leading institutions such as Columbia University, Yale School of Medicine and Rush University. Dr. Economou takes a collaborative, patient-centered approach to care, helping individuals understand their condition and treatment options while advancing research on environmental and genetic factors that influence IBD. Dr. Economou is highly rated in 13 conditions, according to our data. His top areas of expertise are Ulcerative Colitis, Hemorrhagic Proctocolitis, Crohn's Disease, Colonoscopy, and Endoscopy.

Tara Troy is a Gastroenterologist in Northbrook, Illinois. Dr. Troy is highly rated in 11 conditions, according to our data. Her top areas of expertise are Hemorrhoids, Gas Bloat Syndrome, Heartburn, Colonoscopy, and Endoscopy.

Asamad Soudagar is a Gastroenterologist in Lake Forest, Illinois. Dr. Soudagar has been practicing medicine for over 17 years is highly rated in 10 conditions, according to our data. His top areas of expertise are Familial Pancreatic Cancer, Bile Duct Obstruction, Bile Duct Stricture, Gastrectomy, and Endoscopy.

Matthew Tick, DO, a gastroenterologist at Endeavor Health, treats patients with a wide range of digestive disorders and embraces innovation to improve care. He values getting to know his patients and ensuring they feel heard, informed and empowered throughout their treatment journey. Dr. Tick is particularly interested in new GI therapies and technologies that offer more effective options for healing. Dr. Tick is highly rated in 9 conditions, according to our data. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Colonoscopy.

John Gaetano is a Gastroenterologist in Glenview, Illinois. Dr. Gaetano has been practicing medicine for over 16 years is highly rated in 9 conditions, according to our data. His top areas of expertise are Visceromegaly, Enlarged Liver, Macroamylasemia, Endoscopy, and Colonoscopy.

David Rubin is a Gastroenterologist in Northbrook, Illinois. Dr. Rubin is highly rated in 2 conditions, according to our data. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Colitis, and Viral Gastroenteritis.

Phillip Chung is a Gastroenterologist in Northbrook, Illinois. Dr. Chung is highly rated in 24 conditions, according to our data. His top areas of expertise are Trichohepatoenteric Syndrome, Ascites, Diarrhea, Gastrectomy, and Colonoscopy.

Michael Goldberg is a Gastroenterologist in Des Plaines, Illinois. Dr. Goldberg is highly rated in 17 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Hiatal Hernia, Congenital Diaphragmatic Hernia, Colonoscopy, and Endoscopy.

Jonathan Rosenberg is a Gastroenterologist in Gurnee, Illinois. Dr. Rosenberg is highly rated in 52 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy.