Northwestern University Feinberg School of Medicine
Department of Medicine

Department of Medicine

About Us

Dedicated to the future of care

The Department of Medicine provides residents with a thorough, broad-based education while giving patients individualized care through Feinberg-affiliated hospitals and care sites and conducting high-level basic and clinical research through our 12 specialized internal medicine divisions.

“As with everything we do, whether at the bedside, in the classroom or in the laboratory, we are constantly striving for excellence.”

Douglas E. Vaughan, MD

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What We Do

Faculty Spotlight

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Marianne M Green, MD

Associate Professor of Medicine (General Internal Medicine and Geriatrics) and Medical Education

Clinically I am interested in the primary care of adults with acute and chronic illness. I value shared decision making with my patients and my role as care coordinator for patients with complex illnesses who see multiple providers. Academically I am interested in competency assessment for both undergraduate medical students and practicing physicians.

John P Flaherty, MD

Professor of Medicine (Infectious Diseases)

HIV infection, Orthopedic-related Infections, Travel-related infections

John D Nicolas, MD

Clinical Assistant Professor of Medicine (General Internal Medicine and Geriatrics)

Prevention, health and wellness promotion, and the management of acute and chronic illnesses.

Ronald T Ackermann, MD, MPH

Professor of Medicine (General Internal Medicine and Geriatrics), Medical Social Sciences and Medicine (Endocrinology)

My work focuses on ways to improve health and healthcare through the efficient coordination of health promotion and disease prevention activities across healthcare and community settings. I am considered a national expert in pragmatic research and natural experiments to improve the prevention and control of diabetes and other chronic conditions. My additional interests include advancing health equity, eliminating health disparities, healthcare provider interventions, quality improvement, cost effectiveness analysis, behavioral economics, and strategies for engaging community members and policy...

Robert J Lewandowski, MD

Professor of Radiology, Medicine (Hematology and Oncology) and Surgery

I am primarily interested in loco-regional therapies to treat primary and secondary liver cancers. I am involved in both pre-clinical and clinical studies along these lines. I am also very interested in the use of IVC filters in patients with venous thromboembolic disease.

Daniel Batlle, MD

Professor of Medicine (Nephrology and Hypertension)

Daniel Batlle MD is the Earle, del Greco, Levin Professor of Medicine at Northwestern University. He has been a Professor of Medicine at Northwestern and past Division Chief for 18 years . His clinical and research interests include acid-base disturbances, electrolyte disorders, hypertension, and diabetic nephropathy. Bench research currently involves the study of the renin angiotensin system and enzymes that degrade angiotensin 2 such as ACE2 and its potential therapeutic use.

Evan H Ng, MD

Clinical Instructor of Medicine (General Internal Medicine and Geriatrics)

Primary care, LGBT health, men's health, travel medicine

Clara Bien Peek, PhD

Assistant Professor of Biochemistry and Molecular Genetics and Medicine (Endocrinology)

Epidemiological and genetic studies have shown that disruption of the circadian clock is a factor in multiple pathologies, including metabolic disease, myopathy, and cancer. Our laboratory aims to uncover the physiological impact of the circadian clock on nutrient-responsive regulatory pathways, including oxygen-sensing transcriptional networks. Indeed, we have recently identified a key connection between skeletal muscle clocks and the hypoxia-inducible factor (HIF) pathway, which drives circadian control of the hypoxic response and glucose metabolism. The goal of our laboratory is to understa...

Allen S Anderson, MD

Professor of Medicine (Cardiology)

Dr. Anderson has a research interest in the use of mechanical assist devices in the treatment of advanced heart failure. His other interests include multiorgan transplantation and the noninvasive assessment of cardiac function in patients with heart failure and cardiac transplantation.

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