Chief of Staff
CAPTAIN JUAN N. ROSARIO
Medical Service Corps, United States Navy
Walter Reed National Military Medical Center
CAPT Rosario is a native of the Dominican Republic. He enlisted in the Navy from Paterson, New Jersey in November 1992. After boot camp, he served aboard USS Devastator (MCM-6) and USS Guardian (MCM-5) as deck seaman. In May 1995, he attended Hospital Corps School in Great Lakes, Illinois and reported to Naval Hospital Corpus Christi, Texas. In 1999, he transferred to Naval Hospital Roosevelt Roads, Puerto Rico where he was commissioned as an Ensign in May 2001 through the Medical Service Corps, In-service Procurement Program.
In July 2001, he was assigned Inspector-Instructor, Surgical Company Alpha, 4th Medical Battalion, North Versailles, Pennsylvania. He coordinated multi-national exercises and operations to maintain Navy and Marine Corps Reservist mobilization and operational readiness at 12 sites across 11 states. He successfully deployed more than 150 Reservists in support of Operation Iraqi Freedom. In November 2003, he transferred to Naval Health Clinic New England, Newport, Rhode Island, where he served as Division Officer, Group Practice Manager, and Special Project Coordinator responsible for more than 89K beneficiaries and a $23M renovation project. During his assignment, he was hand-selected to serve as Medical Planner, 2006 New York City Fleet Week and coordinated medical care for 200K visitors and Service Members.
From July 2006 to July 2010, he was assigned to Field Medical Training Battalion-East, Camp Lejeune, North Carolina where he served as Training Company Commander. He led and trained 6K Hospital Corpsmen, Medical Department Officers, and Religious Program Specialists to serve with Marine Corps operational forces. In 2010, CAPT Rosario was selected for the Managed Care Fellowship with the Office of the Secretary of Defense for Health Affairs and the TRICARE Management Activity (TMA). In August 2011, he transferred to TMA/Defense Health Agency (DHA), Aurora, Colorado as Senior Military Health Analyst and Deputy Chief, Performance, Analysis, Transition, and Integration Office. He was responsible for writing TRICARE policy, and the transition, contractual compliance, and performance of all the Purchased Care and Managed Care Support Contractors supporting 9.7M TRICARE beneficiaries worldwide.
In May 2013, CAPT Rosario deployed to Afghanistan, in support of Operation Enduring Freedom, as Role II Commanding Officer/Officer-in-Charge, Surgical Company, Camp Leatherneck, Afghanistan. In August 2014, he reported to Naval Hospital Naples, Italy and served as Director of Branch Clinics, responsible for the healthcare delivery of 37 tenant commands and 29K operational forces in the US European Command (EUCOM), US Africa Command (AFRICOM), and US Central Command (CENTCOM) area of responsibilities.
In May 2018, he transferred to the Bureau of Medicine and Surgery, Falls Church, Virginia, and served as Director, Healthcare Business and Administration, Deputy Assistant Deputy Chief, and Executive Assistant for Operations, Plans, and Readiness. He developed the US Navy’s first Readiness Performance Plan and served as lead for the DHA, Quadruple Aim Performance Process (QPP) and National Defense Authorization Act 2017 Section 703, Restructuring and Realignment of Military Treatment Facilities. From April 2021 to May 2024, he served as the Director for Administration for Navy Medicine Readiness and Training Command/Expeditionary Medical Facility 150 Mike, Jacksonville, Florida.
CAPT Rosario holds a Master of Science degree in Business Administration. He is authorized to wear the Fleet Marine Force Warfare Officer pin and Office of the Secretary of Defense Identification Badge. His awards include the Defense Meritorious Service Medal; Meritorious Service Medal (3); Navy and Marine Corps Commendation Medal (2); Navy Achievement Medal (3); Military Outstanding Volunteer Service Medal and numerous unit; Service; and campaign medals.
CAPT Rosario assumed the position as Chief of Staff for Walter Reed National Military Medical Center in July 2024.