Department of Pediatrics
University of Wisconsin School of Medicine and Public Health

Gastroenterology, Hepatology & Nutrition Faculty & Staff

For Patients & Families:  UW Health                                For Academic Inquiries: (608) 262-0943

Division Chief

Daniel O'Connell, MD

Position title: Associate Professor, Division Chief, Vice Chair of Pediatric Ambulatory Specialty Care

Faculty

Istvan Danko, MD, PhD

Position title: Professor

Katryn Furuya, MD

Position title: Professor

Thomas Ratchford, MD

Position title: Assistant Professor

Luther Sigurdsson, MD

Position title: Professor

Dorota Walkiewicz-Jedrzejczak, MD

Position title: Associate Professor

Jonathan Wong, DO

Position title: Assistant Professor

Clinical Staff

Dana Gruenenfelder, NP

Position title: Nurse Practitioner

Erin Heredia, NP

Position title: Nurse Practitioner

Marcy Weidkamp, NP

Position title: Nurse Practitioner

Miranda Weinke, NP

Position title: Nurse Practitioner

Staff

Sarah French

Position title: Senior Medical Program Assistant

Molly Hite

Position title: Medical Program Assistant

Katarina Varsogea

Position title: Administrative Assistant III