Researchers
Please take a moment to learn more about our Physician Principal Investigators (PIs). All PIs at Dean Foundation are also physicians within Dean Clinic.
Allergy & Immunology
Cardiology
Electrophysiology
Family Practice
Gastroenterology
Geriatrics
Infectious Diseases
Internal Medicine
Neurology
Oncology
Ophthalmology
Christopher R. Croasdale, M.D.
Pediatrics
Pediatric Allergy and Immunology
Pediatric Gastroenterology
Pediatric Pulmonary Disease
Pediatric Neurology
Psychiatry
Rheumatology
Dirk M. Nuenninghoff, M.D.
James F. Porter, M.D.
Zorba Paster, M.D. is a principal investigator for Dean Foundation in Family Practice and also serves on the Dean and St. Mary’s Institutional Review Boards. In addition, he is a Clinical Professor in the Department of Family Medicine and Practice at the University of Wisconsin School of Medicine and Public Health.
Mary Dominski, M.D. is a principal investigator for Dean Foundation in Neurology and is Chair of the Department of Neurology. Dr. Dominski also has an active practice in Pediatric Neurology with special interests in pediatric and adult ADHD, epilepsy and pediatric headache.
Charles H. Diggs, M.D. has been a principal investigator for the Dean Medical Center’s participation in clinical trials through the Eastern Cooperative Oncology Group and the Cancer Trials Support Unit since 1989. He has previously served on the boards of directors of the Dean Medical Center, Dean Health Systems, and Dean Foundation.
James Levin, M.D. is a principle investigator for HCV studies performed at Dean Foundation. He is also the Division Chief of Infectious Diseases, Chairman of the Vaccine Committee and Chairman of Travel Medicine and Infusion Clinics at Dean. In addition he is a Clinical Professor of Medicine at UW-Madison.