Alfonso Tafur, MD, a cardiologist and director of vascular medicine services at Endeavor Health, specializes in managing blood clot disorders and vascular disease. He provides personalized, continuing care while leading research to improve treatment options for complex conditions. Dr. Tafur listens closely to understand each patient’s experience and works to guide them through every phase of their healthcare journey with compassion and precision. Dr. Tafur is highly rated in 41 conditions, according to our data. His top areas of expertise are Venous Thromboembolism (VTE), Deep Vein Thrombosis, Pulmonary Embolism, Hepato-Pancreato-Biliary Surgery, and Knee Replacement.

Moncy A. Varughese, MD, an internal medicine and hospital medicine physician at Endeavor Health, provides care for adult patients admitted with acute or chronic conditions. He manages complex inpatient cases by coordinating evaluations, diagnostics and specialty consultations. Dr. Varughese works closely with multidisciplinary teams to create effective treatment plans and support recovery. His role also includes planning safe discharges and ensuring smooth transitions to outpatient follow-up care. Dr. Varughese is highly rated in 1 condition, according to our data. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Gallbladder Disease, End-Stage Renal Disease (ESRD), Ureteroscopy, and Endoscopy.

John M. Sultan, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with an emphasis on integrative medicine. He combines conventional treatments with evidence-based complementary approaches to support patients’ overall health and long-term wellbeing. Dr. Sultan is highly rated in 77 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Chronic Cough, Coronary Heart Disease, and Atrioventricular Nodal Reentrant Tachycardia (AVNRT).

Hillary Ecker is a primary care provider, practicing in Internal Medicine in Morton Grove, Illinois. Her top areas of expertise are Chronic Cough, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.

Josiah Eschbach is a primary care provider, practicing in Internal Medicine in Park Ridge, Illinois. His top area of expertise is Disseminated Intravascular Coagulation.

Kambiz Zorriasateyn, MD, a specialist in internal medicine and vascular medicine at Endeavor Health, provides individualized care for patients with complex cardiovascular and systemic conditions. He works closely with patients and their families to ensure collaborative, informed treatment decisions. Dr. Zorriasateyn prioritizes open communication, evidence-based care and a holistic view of the patient to guide thoughtful, personalized treatment planning. Dr. Zorriasateyn is highly rated in 45 conditions, according to our data. His top areas of expertise are Pulmonary Embolism, Deep Vein Thrombosis, Saddle Pulmonary Embolism, and Idiopathic Edema.

Jefferson Schott, DO, an internal medicine physician at Endeavor Health, provides primary care to adults 18 and older. He emphasizes preventive care, including vaccinations and cancer screenings, and prioritizes patient involvement in shared decision-making. With a focus on early diagnosis and minimizing unnecessary testing, Dr. Schott strives to create a welcoming, efficient office experience that supports long-term health and wellbeing. Dr. Schott is highly rated in 40 conditions, according to our data. His top areas of expertise are Lymphofollicular Hyperplasia, Toxic Nodular Goiter, Chronic Cough, and Sitosterolemia.

Gary Kaufman, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with a focus on prevention and long-term relationships. He cares for generations of families and emphasizes continuity, trust and patient education. Dr. Kaufman values building partnerships that support lifelong health and wellbeing. Dr. Kaufman is highly rated in 34 conditions, according to our data. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Non-Hodgkin Lymphoma.

Kenneth Breger, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with a focus on prevention and long-term relationships. With nearly 30 years of experience, he values continuity of care and generational connections with families. Dr. Breger also supports lifestyle change and early detection to help patients stay healthy and independent over time. Dr. Breger is highly rated in 29 conditions, according to our data. His top areas of expertise are Alzheimer's Disease, Chronic Cough, Large-Cell Immunoblastic Lymphoma, and Vertigo.

Jonathan Brown, MD, an internal medicine physician at Endeavor Health, provides primary and preventive care for adults across all stages of life. With more than 25 years in practice, he prioritizes strong doctor-patient partnerships built on trust, open communication and mutual respect. Dr. Brown aims to create a welcoming, nonjudgmental environment where patients feel heard, safe and empowered to take charge of their health. Dr. Brown is highly rated in 27 conditions, according to our data. His top areas of expertise are Temporal Arteritis, Undifferentiated Connective Tissue Disease (UCTD), Alcoholic Cirrhosis, and Visceromegaly.

Branka O'Sullivan, MD, an internal medicine physician at Endeavor Health, provides primary care for adults with a focus on preventive health, wellness and chronic disease management. She partners with patients to build long-term care plans that support lasting health outcomes. Dr. O'sullivan is highly rated in 21 conditions, according to our data. Her top areas of expertise are Infant Hyperglycemia, Congenital Sucrase-Isomaltase Deficiency, Glucose Phosphate Isomerase Deficiency, and Glucose-Galactose Malabsorption Deficiency.

Arielle Levitan, MD, an internal medicine physician at Endeavor Health, provides primary care for adults across all stages of life. She emphasizes continuity of care, patient partnerships and personalized health planning. Her clinical interests include preventive medicine, chronic disease management and helping patients navigate healthcare decisions with evidence-based support. Dr. Levitan is highly rated in 20 conditions, according to our data. Her top areas of expertise are Sitosterolemia, Familial Neurocardiogenic Syncope, Hypothyroidism, and Varicose Veins.

Richard Viglione is a primary care provider, practicing in Internal Medicine in Lake Forest, Illinois. Dr. Viglione has been practicing medicine for over 46 years is highly rated in 19 conditions, according to our data. His top areas of expertise are Necrosis, Cellulitis, Peptic Ulcer, and Gangrene.

Alina Elperin is a primary care provider, practicing in Internal Medicine and Bariatric Medicine in Bannockburn, Illinois. Dr. Elperin is highly rated in 16 conditions, according to our data. Her top areas of expertise are Adult Still's Disease, Heart Failure with Preserved Ejection Fraction (HFpEF), Chronic Lymphocytic Leukemia (CLL), and End-Stage Renal Disease (ESRD).

Ned Zallik is a primary care provider, practicing in Internal Medicine in Bannockburn, Illinois. Dr. Zallik is highly rated in 16 conditions, according to our data. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Sitosterolemia, Childhood Iron Deficiency Anemia, and Ascites.

Daniel Goldstein is a primary care provider, practicing in Internal Medicine in Highland Park, Illinois. Dr. Goldstein is highly rated in 15 conditions, according to our data. His top areas of expertise are Heart Failure, Hypertension, Familial Hypertension, Heart Transplant, and Lung Transplant.

Mark Greenberger is a primary care provider, practicing in Internal Medicine in Highland Park, Illinois. Dr. Greenberger is highly rated in 15 conditions, according to our data. His top areas of expertise are Acute Interstitial Pneumonia, Myeloproliferative Neoplasms (MPN), Heart Failure with Preserved Ejection Fraction (HFpEF), Endoscopy, and Pacemaker Implantation.

Sanjeev Lulla is a primary care provider, practicing in Internal Medicine in Northbrook, Illinois. Dr. Lulla is highly rated in 15 conditions, according to our data. His top areas of expertise are Sitosterolemia, Endocarditis, Chronic B-Cell Leukemia (CBCL), and Chronic Lymphocytic Leukemia (CLL).

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 highly rated in 13 conditions, according to our data. His top areas of expertise are Hives, Stroke, Muscle Invasive Bladder Cancer, and Bronchitis.

Peter Jaggard is a primary care provider, practicing in Internal Medicine and Geriatrics in Evanston, Illinois. Dr. Jaggard has been practicing medicine for over 47 years is highly rated in 12 conditions, according to our data. His top areas of expertise are Hospital-Acquired Pneumonia, Atypical Pneumonia, Low Sodium Level, and Lung Metastases.

Michael Gill is a primary care provider, practicing in Internal Medicine in Des Plaines, Illinois. Dr. Gill is highly rated in 5 conditions, according to our data. His top areas of expertise are Chronic B-Cell Leukemia (CBCL), Richter Syndrome, Chronic Lymphocytic Leukemia (CLL), and Coronary Heart Disease.

Andreas Seidler, MD, an internal medicine physician at Endeavor Health, brings 40 years of experience caring for patients with sleep disorders and complex medical conditions. He evaluates and treats conditions such as insomnia, sleep apnea and chronic fatigue, with a focus on improving long-term health outcomes. Dr. Seidler is fluent in German and integrates decades of clinical insight into a thoughtful, patient-centered approach. Dr. Seidler is highly rated in 3 conditions, according to our data. His top areas of expertise are Obstructive Sleep Apnea, Excessive Daytime Sleepiness, and Central Sleep Apnea.

Nicholas A. Zwang, MD, an internal medicine and nephrology physician at Endeavor Health, provides care for adults with a focus on kidney health and overall wellbeing. He evaluates and manages acute and chronic kidney conditions, collaborates with specialists to address complex health needs and supports patients through ongoing disease management. Dr. Zwang combines expertise in internal medicine with nephrology to deliver comprehensive care tailored to each patient’s health goals. Dr. Zwang is highly rated in 2 conditions, according to our data. His top areas of expertise are Acute Kidney Failure, Necrosis, Heart Failure with Preserved Ejection Fraction (HFpEF), Prostatectomy, and Ureteroscopy.

Arif Ali Khan, MD, a hospital medicine physician at Endeavor Health, provides care for adult patients admitted to the hospital with a range of acute or complex medical conditions. He collaborates with multidisciplinary teams to coordinate treatment and ensure continuity of care throughout hospitalization. Dr. Khan is highly rated in 2 conditions, according to our data. His top areas of expertise are End-Stage Renal Disease (ESRD), Heart Failure with Preserved Ejection Fraction (HFpEF), Saddle Pulmonary Embolism, Ureteroscopy, and Endoscopy.

Kosha N. Kamani, MD, an internal medicine physician at Endeavor Health, provides primary care for adults, including preventive screenings, chronic disease management and treatment of complex health conditions. She works with patients to support long-term wellness and individualized care plans. Dr. Kamani is highly rated in 2 conditions, according to our data. Her top areas of expertise are Opioid Induced Constipation, Heart Failure with Preserved Ejection Fraction (HFpEF), Saddle Pulmonary Embolism, Ureteroscopy, and Prostatectomy.