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    Clinical Sciences Faculty

    The Department of Clinical Sciences & Advanced Medicine plays a vital role in Penn Vet’s three-part mission to educate veterinarians and the public about animal health, provide service to the public by treating sick pets and other small animals, and develop new approaches through research to improve companion animal health. Our faculty combine clinical practice with ongoing research, positioning veterinary medicine as a leading influence in both human and animal care.

    dog at exam

    Faculty in the Department of Clinical Sciences & Advanced Medicine

    Thomas Lee

    Thomas Lee, DVM, DACVR

    Assistant Professor in Radiation Oncology

    Dr. Ber-In “Thomas” Lee earned his Doctor of Veterinary Medicine degree from National Taiwan University (NTU). His childhood experience with acute leukemia and its eventual cure after intense chemotherapy inspired […]

    Elizabeth Lennon

    Elizabeth M. Lennon, DVM, PhD, DSAIM

    Pamela Cole Assistant Professor of Internal Medicine

    Dr. Elizabeth Lennon is a board certified internal medicine specialist and the Pamela L. Cole Assistant Professor of Small Animal Internal Medicine at the University of Pennsylvania. Dr. Lennon’s laboratory […]

    Jennifer Lenz

    Jennifer Lenz, DVM, DACVIM

    Assistant Professor, Medical Oncology
    Wilfried Mai

    Wilfried Mai, DMV, PhD, DACVR, DECVDI

    Professor of Radiology
    Deborah C. Mandell

    Deborah C. Mandell, VMD, ACVECC

    Professor, Clinical Emergency & Critical Care

    Additional Titles: Service Head, Emergency, Ryan Veterinary Hospital Dr. Mandell obtained her VMD from University of Pennsylvania in 1993. She then completed a rotating internship and then Emergency and Critical […]

    Anna M. Massie

    Anna M. Massie, DVM, DACVS

    Assistant Professor of Orthopedic Surgery
    Megan E. McClosky

    Megan E. McClosky, DVM, DACVIM

    Assistant Professor, Clinical Small Animal Internal Medicine 

    Dr. McClosky graduated from Auburn University’s College of Veterinary Medicine in 2014. After earning her veterinary degree, she completed a one-year rotating internship and Small Animal Internal Medicine residency at […]

    Kathryn E. Michel

    Kathryn E. Michel, DVM, DACVN

    Professor of Nutrition, Department of Clinical Sciences and Advanced Medicine
    Erica Miller

    Erica Miller, DVM

    Adjunct Associate Professor, Wildlife Medicine

    Addtional Titles Field Operations Manager, Wildlife Futures Program

    Daniel Morris

    Daniel O. Morris, DVM, MPH, DACVD

    Professor of Dermatology

    Additional Titles: Section Chief, Dermatology

    Ariel S. Mosenco

    Ariel S. Mosenco, DVM, DACVIM

    Professor, Clinical Medicine

    Dr. Mosenco graduated from the Koret School of Veterinary Medicine, Hebrew University, where he also completed a rotating small animal internship. Dr. Mosenco completed his residency in small animal internal […]

    Cynthia M. Otto, DVM, PhD, DACVECC, DACVSMR

    Professor of Working Dog Sciences & Sports Medicine

    Additional Titles: Executive Director, Penn Vet Working Dog Center Graduate Group Member, Graduate Group in Pharmacological Sciences Cynthia M. Otto, DVM, PhD, a tenured Professor of Working Dog Sciences and […]