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Col. Nathan T. Kellett

Col. Nathan T. Kellett is the Commander, 633d Medical Group and Director, Ambulatory Surgery Center, Joint Base Langley-Eustis, Virginia where he leads 1,400 active-duty and civilian medical personnel. In this role, he is responsible for ensuring maximum wartime clinical readiness, ensuring ready medical forces and medical ready forces while providing high quality, safe and trusted patient care for 382,000 beneficiaries in the Tidewater Market.

Col Kellett is a Minnesota native and hails from Charlotte, North Carolina.  Commissioned in 2005, he serves as a Medical Service Corps officer holding operational positions in Medical Logistics, Medical Readiness, Information Systems, and Clinical Engineering.  Col Kellett’s staff assignments include PACOM Designated Senior Logistician, PACAF Surgeon General’s Plans and Logistics Branch Chief, 7th Air Force Deputy Surgeon, and Multinational Force Medical Liaison- Regional Command East, Afghanistan.  He earned three Master’s degrees from the University of North Carolina and Air University and was competitively selected for two Air Force fellowships in Information Systems at the Ohio State University and Emergency Management at the United States Department Health and Human Services.  Col Kellett’s combat experience include multiple tours supporting Operation ENDURING FREEDOM and Operation DEEP FREEZE.  His Humanitarian Assistance and Disaster Relief experience include supporting Kumamoto and Kaikoura earthquakes, Sri Lankan floods, and over 50 COCOM Emergency Management Global Health Engagements with over 20 US strategi Allies and Partners. 

Col Kellett’s professional experience includes:  strategic planning, emergency management, complex catastrophe and Humanitarian Assistance/Disaster Relief operations planning and response management, Defense Support of Civil Authorities planning and response management, health services support and global health management, pharmacoeconomic and pharmacoepidemiology research, and domestic and creditor’s rights litigation.



1993 Bachelor of Arts, University of North Carolina, Charlotte, NC
2004 Master of Health Services Administration, University of North Carolina, NC
2006 Air and Space Basic Course (Residence), Maxwell AFB, AL
2008 Squadron Officer School (Residence), Maxwell AFB, AL
2015 Air Command Staff College (Residence), Maxwell AFB, AL
2021 Air War College (Residence), Maxwell AFB, AL



  1. June 2005 – June 20072, Element Chief, Systems Operations, 88th Medical Support Squadron, Wright-Patterson AFB, OH

(September 2006 – February 2007, Deployed – Chief Operations Officer, 376th Air Expeditionary Medical Group, Manas AB, KG

  1. June 2007 – August 2008, Element Chief, Clinical Engineering, 88th Medical Support Squadron, Wright-Patterson AFB, OH
  2. August 2008 – July 2009, Fellow, Ohio State University, Information Management/Technology, Columbus OH
  3. July 2209 – June 2011, Flight Commander, Information Systems, 633rd Medical Support Squadron, Joint Base Langley-Eustis, VA

(July 2010 – June 2011, Deployed – Deputy Commander/Executive Officer, 655th Forward Surgical Team & Regional Command East Medical Liaison, FOB Ghazni, AF)

  1. June 2011 – June 2012, Flight Commander, Medical Readiness, 51st Medical Support Squadron, Osan AB, KR
  2. June 2012 – August 2013, Flight Commander, Medical Logistics, 51st Medical Support Squadron, Osan AB, KR
  3. August 2013 – August 2014, Fellow, US Department of Health and Human Services, Washington D.C.
  4. August 2014 – July 2015, Student Air Command and Staff College, Maxwell AFB, Montgomery, AL
  5. July 2015 – July 2017, Branch Chief, Medical Plans and logistics, Pacific Air Forces Command, Joint Base Pearl Harbor-Hickam, HI
  6. July 2017 – June 2019, Commander, 2nd Medical Support Squadron, Administrator, Deputy Group Commander, 2nd Medical Group, Barksdale AFB, LA
  7. June 2019 – July 2020, Commander, 60th Medical Support Squadron, Travis AFB, CA
  8. July 2020 – May 2021, Air War College, Maxwell AFB, Montgomery, AL
  9. June 2021 – July 2023, Commander, 9th Medical Group, Beale AFB, CA
  10. July 2023 – Present, Commander, 633d Medical Group, Langley AFB, VA



Legion of Merit
Bronze Star
Meritorious Service Medal (three oak leaf clusters)
Air and Space Force Commendation Medal (one oak leaf cluster)
Joint Service Achievement Medal
Air and Space Achievement Medal
Army Achievement Medal
Joint Meritorious Unit Award
Meritorious Unit Award (one oak leaf cluster)
Air Force Outstanding Unit Award (one oak leaf clusters)
Afghanistan Campaign Medal (one service star)
Global War on Terrorism Expeditionary Medal
Global War on Terrorism Service Medal
Korean Defense Service Medal
Humanitarian Service Medal
Nuclear Deterrence Operations Service Medal
Air Force Overseas Ribbon Short
Air Force Overseas Ribbon Long
Air Force Expeditionary Service Ribbon with Gold Border (one oak leaf cluster)
Non-Article Five NATO Medal


2005 AFMC Medical Information Systems Team of the Year
2006 AFMS/AFMC Medical Information Systems Team of the Year
2006 AFMC Brigadier General Peter C. Bellisario Young Healthcare Administrator of the Year
2007 AFMC Medical Logistics Account of the Year
2011 AFMS/PACAF Medical Readiness Team of the Year
2012 PACAF Medical Logistics Team of the Year
2015 Distinguished Graduate – Air Command and Staff College
2016 American College of Healthcare Executives Military Excellence in Healthcare Management Award
2016 PACAF/SG Team of the Year
2017 PACAF/SG Team of the Year
2107 PACAF/SG Action Officer of the Year
2018 American College of Healthcare Executives Distinguished Service Award
2019 Air Force Medical Service Corps Commitment to Excellence
2021 Joint Warfare Planner Special Experience Identifier (SEI)


Fellow, American College of Healthcare Executives
Board Member, American College of Healthcare Executives Research Advisory Committee
Member, International Association of Emergency Management
Member, Academy Health



First Lieutenant February 2005
Captain April 01, 2007
Major June 01, 2012
Lieutenant Colonel October 01, 2015
Colonel June 01, 2021

(Current as of July, 2023)

Army Biographies
Air Combat Command Biographies
Links to Air Combat Command senior leadership biographies
TRADOC Biographies