![[Rayan El Hajjar, MD]](/sites/default/files/styles/az_card_image/public/2025-09/El-Hajjar_Rayan_NEPH-5-Edit_25_11412.jpg.webp?h=29d785f3&itok=RCakxf34)
Rayan El Hajjar, MD
Associate - Fellow
Clinical Instructor
Tammer Y. El-Aini, MD
Clinical Assistant Professor - (Clinical Series Track)
John C. Elfar, MD
Chair, Orthopaedic Surgery
Professor, Orthopaedic Surgery
Member, Graduate Faculty
Katherine (Kate) Ellingson, PhD
Assistant Professor, Public Health
Assistant Professor, Medicine
Assistant Professor, Animal and Comparative Biomedical Sciences
Virginia Ellis
Clinical Research Coordinator II, Anesthesiology
Kristen E. Ellis, PharmD, BCPS
Clinical Pharmacist
Team Leader, TeamRx (T-Rex) Pharmacy Group, Petersen HIV Clinics
Nathan Ellis, PhD
Professor, Cellular and Molecular Medicine
Chair, Genetics, GIDP
Co-Program Leader, Cancer Biology Research Program
Jenna R. Elmer
Director, Human Resources, College of Medicine – Tucson
