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Internal Medicine
Sanford School of Medicine
1400 W. 22nd St.
Sioux Falls, SD 57105
Office Hours
Monday - Friday
8:00 a.m. - 5:00 p.m.

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Welcome to the Department of Internal Medicine 

The Department of Internal Medicine at the Sanford School of Medicine is a leader in patient care, medical education, and research. The Department is divided into 10 Major Divisions: General Internal Medicine, Hospital Medicine, Cardiology, Pulmonology-Critical Care, Nephrology, Endocrinology, Hematology-Oncology, Gastroenterology-Hepatology, Infectious Diseases, and Rheumatology. Faculty members within these divisions publish approximately 200 peer-reviewed manuscripts annually, and many are funded through extramural awards.

The Division of Cardiology offers ACGME-accredited fellowships in both Cardiovascular Disease and Interventional Cardiology. The Division of General Internal Medicine co-sponsors the training of Geriatrics Fellows through a joint program across multiple departments.

Internal Medicine faculty members on all campuses are engaged in medical education, providing either bedside teaching or didactic lectures and conferences for medical student and/or resident physicians.

Faculty & Staff

Nearly 400 academic and clinical faculty members in the Department of Internal Medicine care for patients within multiple health systems located in both rural and urban settings across the state of South Dakota. Faculty practices range from primary care Internal Medicine to all subspecialties of Internal Medicine.
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Eric Larson

Chair, Internal Medicine
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Russ Wilke

Vice Chair, Internal Medicine
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Toni LeVasseur

Program Assistant II
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Kelly EvansHullinger

Clinical Associate Professor
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Joseph Fanciullo

Director, Internal Med Res Prg
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Justin Jons

Senior Secretary
Bio Image for Faculty Member James Kroon

James Kroon

Program Assistant II
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Randall Lamfers

Assoc Dir, Int Med Res Prog
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Dan Rath

Associate Professor
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Joseph Rees

Assistant Professor
Bio Image for Faculty Member Mary Zajicek

Mary Zajicek

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Department Highlights

Explore the variety of opportunities and resources available.

DEPARTMENTS & FACILITIES

Explore the locations and centers affiliated with the Department of Internal Medicine.
Students Inside the Parry Center.

Parry Center

The Parry Center for Clinical Skills & Simulation is a state-of-the-art learning environment that allows collaboration among students and safely simulates real-patient experiences.

Medical Students Talking on a Staircase.

South Dakota Area Health Education Center

We connect students to careers, professionals to communities and communities to better health.

Three medical school faculty standing together.

Yankton Medical Campus

Home of our innovative Yankton ambulatory program, the Yankton campus offers state of the art learning adjacent to the Avera Sacred Heart Hospital and Yankton Medical Clinic.

Medical faculty of the Rapid City campus posing for a picture on a mountain.

Rapid City Medical Campus

Located near the Black Hills, in the heart of downtown Rapid City, the campus has been providing training for medical students since 1948.

 Exterior of Sioux Falls Campus.

Sioux Falls Medical Campus

Located in the heart of South Dakota's largest city, the Sioux Falls campus resides on the campus of Sanford Health and Sanford/USD Medical Center.

The outside of the Wegner Library and facilities.

Wegner Health Sciences Library

Supporting healthcare, education and research for the University of South Dakota and our partners.