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Donate to the foundation
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For Medical Professionals
For Patients
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Become a member and receive career-enhancing benefits

Our top priority is providing value to members. Your Member Services team is here to ensure you maximize your ACS member benefits, participate in College activities, and engage with your ACS colleagues. It's all here.

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ESS Leadership 2023 Executive Council

The following surgeons are the elected officers of the Excelsior Surgical Society:

Profile image of Colonel Jeremy W. Cannon, MD, FACS, MC, USAF
President
Colonel Jeremy W. Cannon, MD, FACS, MC, USAF
University of Pennsylvania
Profile image of Colonel Jennifer Gurney, MD, FACS, USA
Vice-President (President-Elect)
Colonel Jennifer Gurney, MD, FACS, USA
The Joint Trauma System
Profile image of Captain Matthew Tadlock, MD, FACS, USN
Secretary
Captain Matthew Tadlock, MD, FACS, USN
1st Medical Battalion – Detachment San Diego
Profile image of Lieutenant Colonel John Horton, MD, FACS, USA
Treasurer
Lieutenant Colonel John Horton, MD, FACS, USA
Madigan Army Medical Center
Profile image of Major Maggie Gallagher, MD, FACS, FAAP, USA
Councilperson at Large, US Army
Major Maggie Gallagher, MD, FACS, FAAP, USA
Blanchfield Army Community Hospital
Profile image of Commander Tamara Worlton, MD, FACS, USN
USN Councilperson at Large
Commander Tamara Worlton, MD, FACS, USN
Walter Reed National Military Medical Center
Profile image of Lieutenant Colonel Brian Gavitt, MD, MPH, FACS, USAF
Councilperson at Large, US Air Force
Lieutenant Colonel Brian Gavitt, MD, MPH, FACS, USAF
Trauma, Burn, and Rehabilitation Medicine Mission, United Arab Emirates
Profile image of Colonel Jamison Nielsen, DO, MBA, MCR, FACS, FAWM, USAR
Councilperson at Large, Reserve/National Guard
Colonel Jamison Nielsen, DO, MBA, MCR, FACS, FAWM, USAR
Tacoma Trauma Trust, Saint Joseph’s Medical Center
Profile image of Colonel (Retired) John S. Oh, MD, FACS, USA
Councilperson at Large, Civilian
Colonel (Retired) John S. Oh, MD, FACS, USA
Penn State Health Milton S. Hershey Medical Center
Profile image of RMKD “Kal” Gunasingha, MD
Councilperson at Large, Resident/Fellow
RMKD “Kal” Gunasingha, MD
RMKD “Kal” Gunasingha, MD