Dr. Mark Bartolozzi, M.D., F.A.C.S.

Dr. Mark Bartolozzi

Undergraduate: College of the Holy Cross

Graduate Studies: Masters in Biology and Physiology, New York University Medical School: New York Medical College


Internship and Residency: Westchester Medical Center, Valhalla, New York


Board Certification: General Surgery, American Board of Surgery 1993; Re-certified in 2003

Fellow of the American College of Surgeons

Dr. Bartolozzi is married with four children. He dedicates part of his time in providing his medical services at the Prince William County Free Clinic. He enjoys biking and golfing.

Dr. Joseph J. Magalski, Jr., M.D., F.A.C.S.

Dr. Joseph Magalski

Undergraduate: University of Scranton

Medical School: Temple University


Internship and Residency: Westchester Medical Center, Valhalla, New York


Board Certification: General Surgery, American Board of Surgery

Fellow of the American College of Surgeons

Dr. Magalski is married with one child. He enjoys golfing, cooking and listening to Classical music, Billy Joel and the Dave Matthews Band.

Dr. John A. Harrison, D.O.

Dr. John A. Harrison, D.O. Prince William Surgery

Undergraduate: Denison University

Medical School: Philadelphia College of Osteopathic Medicine

Internship: Mercy Hospital, Pittsburgh, Pennsylvania  2004-2005
National Naval Medical Center, Bethesda, Maryland  2000-2001

Residency: Lehigh Valley Hospital Department of Surgery, Penn State
University School of Medicine, Allentown Pennsylvania

Dr. Harrison is married with 1 Labrador. He served 3 years as a General Medical Officer in the US Navy, prior to completing his residency. He enjoys outdoor activities, music and travel.
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