Andrew Mazulis is a Gastroenterologist in Libertyville, Illinois. Dr. Mazulis is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Sclerosing Mesenteritis, Viral Gastroenteritis, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

Igor Naryzhny is a Gastroenterologist in Lincolnshire, Illinois. Dr. Naryzhny has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Ascites, Gastrectomy, and Colonoscopy.

Tarek Almouradi is an Internal Medicine provider in Libertyville, Illinois. Dr. Almouradi is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Angiodysplasia of the Colon, Watermelon Stomach, Hereditary Pancreatitis, Gastrectomy, and Endoscopy.

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 a Distinguished provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy.

Steven Witzel is a primary care provider, practicing in Internal Medicine in Il, Illinois. Dr. Witzel has been practicing medicine for over 42 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Richter Syndrome, Chronic B-Cell Leukemia (CBCL), Chronic Lymphocytic Leukemia (CLL), and Glucocorticoid-Remediable Aldosteronism.

Alex Kostiv is a primary care provider, practicing in Family Medicine in Vernon Hills, Illinois. Dr. Kostiv is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Vitamin D Deficiency, High Cholesterol, Anemia, Gastrostomy, and Endoscopy.

Julia Ratner, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with a focus on preventive health, routine screenings and chronic disease management. She collaborates with patients to support long-term wellness through personalized care. Dr. Ratner is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Dementia, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

Jason Kramer, MD, an internal medicine physician at Endeavor Health, provides comprehensive primary care focused on disease prevention and long-term health management. He specializes in managing chronic conditions such as hypertension, dyslipidemia and diabetes. Dr. Kramer partners with patients to support their overall wellbeing through personalized, evidence-based care. Dr. Kramer is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Maturity Onset Diabetes of the Young, Movement Disorders, Parkinson's Disease, Inclusion Body Myositis, and Aneurysm Repair.

Nadeem Z. Alavi, DO, an internal medicine physician at Endeavor Health, provides comprehensive primary care for adults, with a focus on preventive health and chronic disease management. He addresses a broad spectrum of conditions, working to support each patient’s long-term health goals through evidence-based care and personalized treatment planning. Dr. Alavi is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Enlarged Prostate (BPH), Sitosterolemia, High Cholesterol, and Familial Hypertension.

John Oh is a primary care provider, practicing in Internal Medicine in Buffalo Grove, Illinois. Dr. Oh is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and Congenital Sucrase-Isomaltase Deficiency.

Frances Baxley is a primary care provider, practicing in Family Medicine in Lake Forest, Illinois. Dr. Baxley is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Giardia Infection, Irritable Bowel Syndrome (IBS), Bacterial Gastroenteritis, and Familial Dysautonomia.

Diana Guse, MD, a specialist in internal medicine and pediatrics at Endeavor Health, provides comprehensive primary care for patients of all ages—from newborns to older adults. She focuses on whole-person care, managing everything from routine prescriptions to complex specialty coordination. Dr. Guse partners with patients to build trusting relationships and aims to support individuals who may feel nervous about seeking care, creating a safe and collaborative environment in every visit. Dr. Guse is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Sinusitis, Empyema, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).

Timothy J. Poland, MD, a family medicine physician at Endeavor Health, provides comprehensive primary care for patients of all ages. He focuses on preventive health, routine checkups and chronic disease management to support each patient's long-term wellbeing. Dr. Poland is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Heart Failure, Pulmonary Edema, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).

Mohina Gupta is a primary care provider, practicing in Internal Medicine in Libertyville, Illinois. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Dementia, Hypertension, Glucocorticoid-Remediable Aldosteronism, Endoscopy, and Ureteroscopy.

Claus Fimmel is an Internal Medicine specialist and a Gastroenterologist in Libertyville, Illinois. Dr. Fimmel is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hepatitis, Autoimmune Hepatitis, Hepatitis C, Gastrectomy, and Endoscopy.

Charles Berkelhammer is a Gastroenterologist in Libertyville, Illinois. Dr. Berkelhammer is rated as a Distinguished provider by MediFind in the treatment of Colitis. His top areas of expertise are Watermelon Stomach, Esophagitis, Gastric Dysmotility, Gastrectomy, and Endoscopy.

Steven Lasin is a primary care provider, practicing in Internal Medicine in Lake Forest, Illinois. Dr. Lasin is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Vitamin D Deficiency, Hypothyroidism, Nasal Flaring, and Transient Ischemic Attack (TIA).

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 Colitis. Her top areas of expertise are Sitosterolemia, Vitamin B12 Deficiency Anemia, Multiple Carboxylase Deficiency, and Folate Deficiency.

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 Colitis. His top areas of expertise are Coronary Heart Disease, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

Minhaj Musa is a primary care provider, practicing in Internal Medicine in Barrington, Illinois. Dr. Musa is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Cirrhosis, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.