Allergy/Immunology Fellowship
Our People
Program Leadership
Amy M. Dowden, MD
Allergy/Immunology Fellowship Program Director
Clinical Professor of Internal Medicine and Pediatrics
Phone: 319.356.2150
Diana Bayer, DO
Allergy/Immunology Fellowship Associate Program Director
Clinical Professor of Pediatrics and Internal Medicine
Phone: 319.356.4158
Benjamin Davis, MD, PhD
Interim Director, Division of Immunology
Clinical Associate Professor of Internal Medicine and Pediatrics
Phone: 319.356.4899
Allergy/Immunology Fellows
Dana Al-Maajali, MD
Class of 2027
Medical School: University of Jordan
Residency: Children’s Hospital of Michigan
Truman Nguyen, MD
Class of 2026
Medical School: University of Wisconsin
Residency: University of Iowa
Cassie Wassink, MD
Class of 2027
Medical School: University of Iowa
Residency: University of Iowa
Allergy/Immunology and Rheumatology Dual Certification Fellows
Amir Abidov, MD
Class of 2026
Medical School: University of Arizona
Residency: Lankenau Medical Center
Madalyn Walsh, MD
Class of 2027
Medical School: University of Iowa
Residency: University of Iowa