About Us

Command Team


Colonel Michael S. Mendenhall
Munson Army Health Center

Colonel Michael S. Mendenhall assumed Command of Munson Army Health Center August 5, 2022. He recently served as the Deputy Commander of 18th Medical Command (Deployment Support) at Fort Shafter, Hawaii. 
He received his commission in 1996 from Utah State University ROTC program.
After graduation from Basic Course in March 1997, COL Mendenhall was assigned as the Executive Officer for the HHC, 62nd Medical Group, at Fort Lewis, Washington. He then served as a platoon leader and the company executive officer for the 514th Medical Company, 85th Medical Battalion, 62nd Medical Group.  In 1998, he attended the United States Army Flight School rating in the OH-58 A/C, UH-1 "Huey" and the UH-60A "Blackhawk” at Fort Rucker, Alabama. Following flight school, he served as the operations officer and flight platoon leader for the 82nd Medical Company (Air Ambulance), Fort Riley, Kansas.
COL Mendenhall attended the Army Medical Department (AMEDD) Advanced Course in 2001 and then deployed in support of Iraqi Freedom with 82nd Medical Company (AA).  Upon return from Iraq, he served in the Division Medical Operation Center (DMOC), 10th Mountain Division, Fort Drum, New York.  As the U.S. Army DMOCs dissolved with the U.S. Army redesign in 2004, he served as the Evacuation Officer in the Surgeon Cell assisting in the Force Design and allocation of medical forces within the Battalions and Brigades throughout the Division.  In 2005, he was reassigned to the newly designed 10th Combat Aviation Brigade, as the Medical Evacuation Officer within the S-3 and served to plan and execute aeromedical evacuation throughout New York under the MAST agreements and upon deployment to Afghanistan.
In 2007, COL Mendenhall returned to Fort Rucker, Alabama as the Chief of Warrior Track and the U.S. Army Altitude Chamber at the United States Army School of Aviation Medicine. He oversaw the aviation and altitude physiology training of initial-entry aviators, and then departed to Fort Leavenworth, Kansas to attend Intermediate Level Education.
In July 2010 until June 2012, he commanded Charlie Company, 1st Battalion, 52nd Aviation Regiment, Fort Wainwright, Alaska.  Following the company's deployment to Afghanistan, he served as the battalion executive officer for the 1-52nd Aviation Regiment. COL Mendenhall commanded the 1st Battalion, 228th Aviation Regiment at Soto Cano Airbase, Honduras from June 2014 until June 2015, with a follow- on assignments as the Assistant, Chief of Staff for Operations (G3) for Regional Health Command Europe, Sembach, Germany, and Deputy Surgeon, 8th Army at Camp Humphreys in the Republic of Korea.
COL Mendenhall's combat and operational deployments include Detachment Commander in Kuwait 2001 and Flight Platoon Leader, 82nd Medical Company (AA) Operation Iraqi Freedom 2003.  Medical Evacuation Officer, 10th Combat Aviation Brigade (CAB), Bagram, Afghanistan. Commander, C Company, 1-52 AVN Regiment, assigned to 7-101 AVN Battalion, 159th CAB, Kandahar, Afghanistan. Finally, as the Battalion Commander for the 1-228th Aviation Regiment executing Humanitarian Assistance/Disaster Relief, Personal Recovery and Counter Transnational Organized Crime missions across Central America.
COL Mendenhall received his Bachelor of Science in Bio-Veterinary Science from Utah State University in 1996. He received his Master of Arts in Public Administration from Troy University in 2010.  He is a graduate of the U.S. Army Command and General Staff Course (ILE) and the United State Naval War College in Newport, Rhode Island.
COL Mendenhall's badges and awards include the Master Aviator Badge, Expert Field Medical Badge, and awards commensurate with time in service and deployment medals.


Sergeant Major

SGM Jason L. Trevino
Munson Army Health Center
Fort Leavenworth, KS

Sergeant Major Jason L. Trevino is a native of Del Rio, Texas. He enlisted in the U.S. Army in 2003, where he completed Basic Combat Training at Fort Jackson, SC and Advanced Individual Training at Joint Base San Antonio, TX.

His military education includes the Basic Leader Course, Advanced Leaders Course, Senior Leaders Course, Supervisor Development Course, SHARP Foundation Course, Basic Combatives Course, Tactical Combatives Course, Hearing Conservation Course, Instructor Training Course, First Sergeant and Company Commanders Course, and the Sergeants Major Course (Class 73).

SGM Trevino holds a Bachelor of Behavioral Science (Summa Cum Laude) from Wayland Baptist University and a Master of Science in Organizational Development from the University of the Incarnate Word.
SGM Trevino’s previous assignments include the 95th Military Police Battalion, Mannheim, Germany, 15th Brigade Support Battalion and 115th Brigade Support Battalion, 1st Cavalry Division, Fort Hood, TX, 187th Medical Battalion, Joint Base San Antonio, TX, Medical Recruiting Brigade, Fort Knox, KY, 40th Military Police Battalion (USDB), Fort Leavenworth, KS, 710th Brigade Support Battalion, 10th Mountain Division, Fort Polk, LA, and the 1st Theater Sustainment Command, Fort Knox, KY. 

SGM Trevino served three tours in support of Operation Iraqi Freedom.

SGM Trevino’s awards and decorations include the Meritorious Service Medal (5th Award), Army Commendation Medal (6th Award), Army Achievement Medal (7th Award), Good Conduct Medal (6th award), Iraq Campaign Medal (3 Bronze Service Stars), Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, NCO Professional Development Ribbon (4th award), Overseas Service Ribbon (numeral 4), Drivers Badge (wheeled), and the Silver German Armed Forces Proficiency Badge. He is a member of the Order of the Muleskinner (inductee #54) and the Honorable Order of the Kentucky Colonel.


Major Yu-Sheng (David) Chen
US Army Dental Clinic Command
Fort Leavenworth, KS

Major Yu-Sheng (David) Chen took command of the U.S. Army Dental Clinic, Fort Leavenworth, KS, July 20, 2023. MAJ Chen was raised in Taiwan, and at the age of 18 he moved to United States as first-generation immigrant in 2004.  In 2008, he graduated from Texas Tech University with a Bachelor of Science degree in Biology.
In 2015, MAJ Chen earned his Doctor of Dental Surgery degree from Loma Linda School of Dentistry in Loma Linda, California. In 2015, he graduated from dental school with the Health Professions Scholarship Program (HPSP) and started his commission with the United States Army Dental Corps. In 2019, he finished his 2 Years AEGD (Bravo) program in Ft Liberty, North Carolina. MAJ Chen was board certified in 2021.
MAJ Chen’s following assignments include: General dentist for Fort Lewis, Washington, Dental Health Activity from 2015-2017, Command dentist for Area Support Group Kuwait from 2019-2020, and Brigade comprehensive dentist for 512th Field Hospital in Rhine Ordnance Barracks, Germany from 2020-2023.
MAJ Chen’s professional military education includes the U.S. Army Command and General Staff College, Joint Forces Combat Trauma Management Course, Brigade Health Care Provider Course, Dental Management   Development Course, and the Army Medical Department’s Officer Basic and Advanced Courses. MAJ Chen is a certified NATO medical evaluator and Casualty Notification Officer (CNO).

MAJ Chen’s awards and decorations include the Meritorious Service Medal with one Oak Leaf Cluster, Army Commendation Medal with two Oak Leaf Cluster, Army Achievement Medal with one Oak Leaf Cluster, Armed Forces Service Medal, Humanitarian Service Medal with one Bronze Service Star, National Defense Service Medal, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, Army Service Ribbon, Overseas Service Ribbon with Numeral 2, and a Meritorious Unit Commendation.


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