Colonel Sean E. Marshall is dual-hatted as the Commander, 4th Medical Group and Military Treatment Facility Director, Seymour Johnson Air Force Base, NC. He is responsible for an executive team and two diverse squadrons consisting of 287 active duty, civilian, and contract personnel and a budget of $32M. The Koritz Clinic offers dental, flight medicine, health plan management, laboratory, mental health, pediatrics, pharmacy, physical therapy, primary care, public health, radiology imaging, referral and medical management, and women’s health services. The clinic ensures the global medical readiness for 10K Airmen in the F-15E Strike Eagle Wing including the Combat Air Force’s (CAF) largest flying program.

Prior to his nomination for his current duties, he was the Chief, Healthcare Operations Support Division, for the Defense Health Agency. Responsible for Healthcare Compliance across the Military Health System for aspects of the delivery of health care to 9.6 million beneficiaries. He oversaw the Organizational Inspection Program for 19 Direct Reporting Markets, Defense Health Agency Regions, Small Stand Alone Organization, and 451 Military Treatment Facilities around the globe.

He earned his Bachelors from Columbia College, Masters in Public Administration from Troy University, Masters in Public Policy and Doctorate in Public Administration from Walden University. He is a board certified Fellow of the American College of Medical Practice Executives. He has deployed in support of Operations SOUTHERN WATCH, NORTHERN WATCH, ENDURING FREEDOM and Operation INHERENT RESOLVE.

1998 IS-CIS, Columbia College, Columbia Missouri
2000 MPA, Troy State University, Troy Alabama
2006 Squadron Officers School, Maxwell AFB, AL
2010 Board Certified Medical Practice Executive w/American College of Medical Practice Executives
2010 Air Command and Staff College by correspondence
2012 Education with Industries, Johns Hopkins Medicine - Baltimore, Maryland
2015 AFFOR Intermediate Staff Course
2016 Air War College by correspondence
2016 AFMS Intermediate Executive Skills Course
2017 MPP, Walden University, Minneapolis Minnesota
2022 Doctor of Public Administration (DPA), Walden University, Minneapolis Minnesota

Fellow, American College of Medical Practice Executives (FACMPE), Medical Group Management Association

1. January 2004 - June 2005, Medical Information Systems Flight Commander, FE. Warren AFB, WY
2. June 2005 - July 2006, Readiness/Education & Training Flight Commander, FE Warren AFB, WY
3. July 2006 - January 2007, Squadron Administrator, 20 ADOS, Shaw AFB, SC
4. January 2007 - July 2008, Medical Logistics Flight Commander, Shaw AFB, SC
5. July 2008 - January 2009, Medical Readiness Flight Commander, Sheppard AFB, TX
6. September 2008 - January 2011, Course Director, Group Practice Management, Sheppard AFB, TX
7. January 2011 - August 2011, Director, MSC Training/Health Support Flight Commander, Sheppard AFB, TX
8. August 2011 - August 2012, AF Fellow, Johns Hopkins Community Physicians, (AFIT) Baltimore, MD
9. August 2012 - September 2015, Senior Group Practice Manager, Eglin AFB, FL
10. September 2015 – June 2018, HQ PACAF/SG Deputy Command Administrator, JBPHH, HI
11. June 2018 - June 2019, Commander 14th Medical Support Squadron, Columbus AFB, MS
12. June 2019 - June 2020, Commander 14th Health Care Operations Squadron, Columbus AFB, MS
13. June 2020 - June 2022, Commander 18th Medical Support Squadron, Kadena AB, Japan
14. June 2022 – May 2023, Chief, Healthcare Ops Support Division, Defense Health Agency, Falls Church, VA
15. June 2023 – Present, Commander 4th Medical Group, Seymour Johnson AFB, NC

Meritorious Service Medal with 6 sliver oak leaf cluster
Air Force Commendation Medal with 3 oak leaf clusters
Air Force Achievement Medal with 1 oak leaf cluster
Air Force Outstanding Unit Award with 5 silver oak leaf cluster
Air Force Organizational Excellence Award with 1 oak leaf cluster
Air Reserve Forces Meritorious Service Medal with 1 oak leaf cluster
National Defense Service Medal
Armed Forces Expeditionary Medal with 1 oak leaf cluster
Southwest Asia Service Medal with 1 oak leaf cluster
Afghanistan Campaign Medal with 1 oak leaf cluster
Global War On Terrorism Expeditionary Medal
Global War on Terrorism Service Medal
Humanitarian Service Medal
Nuclear Deterrence Operations Service Medal with 'N' Device
Air Force Expeditionary Service Ribbon with Gold Border
NATO Medal

2008 20 Medical Group Company Grade Officer of the Year
2011 882 Training Group Officer Instructor of the Year
2016 PACAF Command Surgeon’s Field Grade Officer of the Year
2017 PACAF Command Surgeon’s Field Grade Officer of the Year

First Lieutenant 16 Dec 2003
Captain 1 Dec 2005
Major 1 Sep 2010
Lieutenant Colonel 1 Sep 2015
Colonel 1 May 2023

(As of May 2023)