Gregory Kirwan

Gregory Kirwan

Gregory Kirwan, D.O.

Foot and Ankle, Joint Replacement

Dr. Gregory Kirwan is the newest surgeon to join Peninsula Orthopaedic Associates. Dr. Kirwan has been the missing piece to our practice and is one of the area’s only fellowship trained orthopaedic surgeons specializing in foot and ankle. Dr. Kirwan brings a wealth of experience and will treat the full gamut of foot and ankle injuries and conditions.

Dr. Kirwan completed his bachelor's degree at the United States Naval Academy, where he also participated in Crew and Football during his undergraduate experience. Dr. Kirwan served in the Navy as an Air Transfer and Operations Officer and was decorated with 7 medals and commendations during his 5 years of service. Dr. Kirwan continued to complete medical school and orthopaedic residency at the Philadelphia College of Osteopathic Medicine. Dr. Kirwan completed a fellowship in orthopaedic foot and ankle surgery at the University of Pennsylvania Medical Center.

Dr. Kirwan has contributed to several publications and given multiple presentations on a whole host of topics from Achilles Tendon ruptures to Ankle Sprains to Orthoapedic Trauma and the Utilization of Wound Vacs. Dr. Kirwan has also been highly involved in youth sports and serves as the team physician for a highly competitive travel lacrosse club.

Outside of work, Dr. Kirwan enjoys spending time with his family. He also likes to stay active through golf and exercise.

Education and Accomplishments

Curriculum Vitae

Board Certifications

  • American Board of Orthopaedic Surgery


University of Pennsylvania, Pennsylvania Hospital, Orthopedic Foot and Ankle Surgery, Philadelphia, PA August 1, 2012-July 31, 2013


Philadelphia College of Osteopathic Medicine, Orthopedic Surgery Program, Philadelphia, PA July 1, 2008 – June 30, 2012


Mercy Health System, Mercy Suburban Hospital, Orthopedic Track, Norristown, PA June 26, 2007 - June 30, 2008

Medical School

Doctor of Osteopathic Medicine, Philadelphia College of Osteopathic Medicine, Philadelphia, PA August 2003 – June 2007 Bachelor of Science, Oceanography, United States Naval Academy, Annapolis, MD August 1993 – May 1997


Orthopedic Surgery Center of the Fox Valley Board Member, OSMS Representative 2019-Present United States Navy, Assistant Public Works Officer/Air Operations Officer, U.S. Naval Air Joint Reserve Base, Willow Grove, PA June 2000 – October 2002 United States Navy, Air Transfer Officer, USS Theodore Roosevelt, CVN-71, U.S. Naval Base, Norfolk, VA August 1998 – June 2000 U.S. Naval Officer Flight School Training, U.S. Naval Air Station, Pensacola, FL December 1997- August 1998 Graduate Assistant Football Coach, U.S. Naval Academy, Annapolis, MD, May 1997 – December 1997

Professional Organizations

  • American Orthopedic Foot and Ankle Society, 2012 - Present
  • American Osteopathic Association, 2007 – Present
  • American Osteopathic Association of Orthopedics, 2007 - Present
  • Brown County Medical Society 2017 – Present
  • Wisconsin Orthopedic Society 2018-Present


Wapner K, Freeland E, Kirwan G. Analysis of Radiographic Outcomes of Lateral Column Lengthening using Longitudinal Z-cut technique in Adult Acquired Flatfoot Deformity. Foot and Ankle Specialist, Submitted, 8/2020.

Kirwan G, Kazanjian J. SLAP Tear Associated with a Superior Glenoid Articular Disruption Lesion. A Case Report. Current Orthopaedic Practice: November/December 2012 – Vol 23 – Issue 6 – p 625-628. doi:10.1097/BCO.0b013e318271221f.

Kirwan G, Pedowitz D. Achilles Tendon Ruptures. Current Reviews in Musculoskeletal Medicine; Foot and Ankle. Vol. 6, Issue 4, 2013.

Books and Book Chapters

Kirwan G, Pedowitz D: Ankle Sprains. In Primary Care Orthopedics, 2nd Ed. Eds: Lotke P, Abboud J, Ende L. Lippincott, Williams, and Wilkins. 2012


Ascension Medical Group Wisconsin 2/2021
Athletic Trainer Lecture Series
Common Foot and Ankle Injuries in the Adolescent and Teenage Athlete

The Driveway Recreation and Athletic Center 8/2020
Injury Prevention in the Athlete

American Association of Orthopedic Nurses 12/2019
Annual Midwest Region Conference
Orthopedic Trauma and the Utilization of Wound Vacs

University of Wisconsin-Fox Valley Marathon 9/2029
Common Injuries in Runners

The Driveway Recreation and Athletic Center 8/2019
Overuse Foot and Ankle Injuries in the Pediatric Athlete

ThedaCare Primary Care Medical Rounds 5/2017
Commonly Missed Foot and Ankle Injuries

ACAC Athletic Club – Orthopedic Health Symposium, 7/2015
West Chester, PA
Common Foot and Ankle Conditions in the Active Elderly Population

Delaware Valley Foot and Ankle Symposium 9/2014
Adult Acquired Flatfoot Deformity

Philadelphia College of Osteopathic Medicine Grand Rounds

  • Peroneal and Achilles Tendon Injuries 11/17/2015
  • Sports Injuries of the Foot and Ankle 11/15/2012
  • Femoroacetabular Impingement 5/17/2011
  • Lisfranc Injuries: Diagnosis and Treatment 3/27/2010
  • Acute and Chronic Shoulder Instability 4/29/2009

St. Christopher's Hospital Grand Rounds
Pediatric Clavicle Fractures 5/19/2010

Cooper University Hospital Grand Rounds
Pediatric Femoral Shaft Fractures 8/5/2009

Awards and Honors

  • Henrietta and Jack Avart Memorial Award 2012
  • Philadelphia College of Osteopathic Medicine: Presented to the resident who has exhibited exceptional competency in Orthopedic Surgery during their training program
  • Monsignor Bonner High School, Drexel Hill, PA 2010
  • Hall of Fame Inductee
  • Leonard P. Harman Scholarship 2005
  • Philadelphia College of Osteopathic Medicine: Awarded to the married medical student with children who exemplifies leadership and academic promise
  • Navy and Marine Corps Achievement Medal 2000
  • Distinguished service: USS Theodore Roosevelt, Mediterranean Sea/Persian Gulf Deployment
  • Sea Service Deployment Medal 1999
  • Navy and Marine Corps Achievement Medal 1999
  • Distinguished service: Naval Forces Joint Task Force Noble Anvil
  • Mediterranean Sea, Kosovo, Federal Republic of Yugoslavia
  • Kosovo Campaign Medal 1999
  • Distinguished service: Operation Allied Force
  • Kosovo Campaign, Federal Republic of Yugoslavia
  • Navy Unit Commendation 1999
  • Combat Operations in Federal Republic of Yugoslavia
  • Armed Forces Expeditionary Medal 1999
  • Operation Southern Watch, Persian Gulf, Iraq
  • National Defense Service Medal 1993


Team Physician, Appleton Lacrosse Club - 2018-2023

Sacred Heart School Catholic Youth Organization, Board of Directors, Treasurer - 2008-2010

PCOM Student Government Association, Class Representative/Alumni Association - 2005 – 2007

PCOM Surgery Club - 2003 – 2007

PCOM Rugby Football Club - 2003 – 2004

Hilltop Babe Ruth League, Head Coach, Havertown, PA - 2003 – 2006

Maury High School Freshmen Crew, Head Coach, Norfolk, VA - 1998 – 2000

U.S. Naval Academy Varsity Football, Annapolis, MD - 1994-1997

U.S. Naval Academy Heavyweight Crew, Annapolis, MD - 1993-1994

Patient Education Center