James T. Sehn, MD M.Sc.

Medical School: Georgetown University School of Medicine

Internship: University of Michigan

Residency: Yale University

Fellowship: Oxford University

Dr. Sehn was born and raised in Detroit then came East to medical school at Georgetown University.
He was elected there to the AOA honor medical society and awarded the Cahill Prize in surgery.  Urology residency was completed at Yale University in 1978 where he won the AUA Resident Essay Contest.  During a post doctoral fellowship at Oxford University he completed an M.Sc. degree in the neuroanatomy of the bladder.

Since training, he has been affiliated with Prince William Hospital where he has served as chief of surgery.  Dr. Sehn has contibuted scientific articles to the Journal of Urology, British Journal of Urology, and Investigative Urology.  His clinical interests include treatment of benign and malignant conditions of the prostate and the overactive bladder.  He had brief notoriety as the surgeon who reattached John Wayne Bobbitt.  Dr. Sehn has twice been voted by his peers to the Washingtonian Magazine list of “Top Doctors”
in the area.


Ali Sajadi, MD

Education: Harvard University, Summer School Program

Johns Hopkins University, BA

University of Virginia School of Medicine, M.D.

Residency: Georgetown University

Dr. Sajadi earned a B.A. with a double-major in History and Biology from Johns Hopkins University
where he was elected to Phi Beta Kappa. He received his medical degree from the University of Virginia.
Dr. Sajadi completed residency training in surgery and urology at Georgetown University Hospital. He has additional research experience in the treatment of prostate cancer from his tenure at Georgetown. Dr. Sajadi is board certified by the American Board of Urology. Dr. Sajadi’s interests include laparoscopic surgery, prostate cancer, and urinary incontinence.


Andrew Chung, MD

Education: University of Michigan Medical School

Residency: William Beaumont Hospital in Detroit, Michigan

Andrew Chung, MD Dr. Chung graduated from University of Michigan medical school in 1995 and performed his urologic residency at William Beaumont Hospital in Detroit, Michigan. He was stationed at Andrews AFB for three years with privileges at Walter Reed Army Medical Center and National Naval Medical Center as well. During that time, he was actively involved in the Department of Defense prostate cancer database ( He came to Prince William Hospital in 2004 and has been an active member of the Cancer Committee since 2004.  He has strong interests in prostate cancer, endourology, laparoscopic and minimally invasive surgery, stress and urge incontinence and stone disease.

He is board certified by the American Board of Urology. He has been published in multiple medical journals including the Journal of Urology, Urology, Cancer, Journal of Clinical Oncology and Surgery.