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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.

The unique culture at the Department of Medicine is built on its rich history of research and clinical innovation embedded in an exceptional clinical environment, driven by faculty and staff whose commitment and talent create patient care improvements through scientific advance.

These extraordinary strengths allow the Department to adapt to tremendous challenges and opportunities that are arising in healthcare. We have seen more change over recent years than in many preceding decades. As each of us contributes to expanding what we can achieve, we are driven by the same core mission: Patients First.”

Susan E. Quaggin, MD, FRCP(C), FASN

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What We Do

Faculty Spotlight

Matthew Feinstein

Associate Professor of Medicine (Cardiology), Preventive Medicine (Epidemiology) and Pathology

Matthew Feinstein, MD MSc is a cardiologist at Northwestern Medicine and an assistant professor at the Northwestern University Feinberg School of Medicine with a dual appointment in the Department of Medicine and Department of Preventive Medicine Dr. Feinstein is a physician-scientist with expertise in immune and inflammatory triggers of cardiovascular diseases. Much of Dr. Feinstein's work has analyzed human immunodeficiency virus (HIV) as a model of chronic immune dysregulation leading to cardiovascular disease. Dr. Feinstein is an elected Fellow of the American Heart Association (AHA), serv...

Bradley R Sabin

Clinical Instructor of Medicine (Allergy and Immunology)

Clinical interests include adult and pediatric allergy & immunology.

Daniel A Hidaka

Clinical Instructor of Medicine (General Internal Medicine)

I am a primary care provider specializing in internal medicine. I am currently only accepting patients in a retainer practice based model, also referred to as "concierge medicine." My goal is to develop long-term relationships with patients in order to focus on their comprehensive medical care, while emphasizing ownership of the patient as a whole. In this model of care, I am able to offer extended visit time with each patient with increased availability and accessibility. I offer same day or next day appointments, email, text and cell phone communication as well as routinely visiting my hospi...

Faraz S Ahmad

Assistant Professor of Medicine (Cardiology) and Preventive Medicine (Health and Biomedical Informatics)

Dr. Ahmad is an assistant professor of medicine-cardiology and a faculty member in the Center for Health Information Partnerships in Northwestern University's Feinberg School of Medicine. He is a practicing advanced heart failure and transplant cardiologist and cares for patients across the spectrum of heart failure, including evaluation for and management of ventricular assist devices and heart transplantation. Dr. Ahmad’s research interests are in the development of the methods, tools, and technologies to collect, store, analyze, and apply diverse electronic health data—including patient-rep...

Eric W Schaefer

Assistant Professor of Medicine (General Internal Medicine)

Medical education: graduate & undergraduate

Paul T Schumacker

Professor of Pediatrics (Neonatology), Cell and Developmental Biology and Medicine (Pulmonary and Critical Care)

Our lab is interested in the effects of oxygen on cell metabolism, and in the molecular mechanisms underlying cellular oxygen sensing. The signaling pathways activated by hypoxia, and their regulation of transcriptional and post-translational responses in diverse cell types are also of major interest. Current studies focus on the role of mitochondrial redox signaling in the development of pulmonary hypertension. Other current studies focus on cardiomyocyte regeneration in the heart and molecular factors that regulate hypertrophic and hyperplastic remodeling responses.

Kevin J O'Leary

Professor of Medicine (Hospital Medicine)

Kevin is Chief of the Division of Hospital Medicine, Associate Chair for Quality in the Department of Medicine, and Medical Director for Quality for Northwestern Memorial Hospital. He is the founding Director of the Northwestern Medicine Academy for Quality and Safety Improvement (NM AQSI), a professional development program to train leaders in quality improvement. In 2015, AQSI received the Leape Ahead Award from the American Association for Physician Leadership.

Kalliopi P Siziopikou

Professor of Pathology (Breast Pathology) and Medicine (Hematology and Oncology)

Dr. Siziopikou's subspecialty focus is on breast tumor markers and molecular diagnostics in breast cancer. Her research interests center around molecular markers of prognostic and predictive significance in breast cancer.