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Rear Adm. Guido Valdes, commander, Naval Medical Forces Pacific (NMFP), salutes Rear Adm. Darin Via, Navy Surgeon General and chief, Bureau of Medicine and Surgery, as he relinquishes command to Rear Adm. Kevin Brown during a change of command ceremony held at Naval Medical Center San Diego on July 25, 2025. During Valdes’ tenure beginning in May 2022, while navigating the challenges of the COVID-19 pandemic, Valdes led NMFP in achieving significant advancements in medical readiness, health care delivery and financial stability. He oversaw a realignment of medical facilities without disrupting patient care. He also guided the establishment of the Naval Expeditionary Medicine Warfighter Development Center (NEMWDC), prioritizing combat trauma readiness and operational medical support. Valdes’ leadership resulted in 101 Individual Augmentee missions and responses to 115 Requests for Support, demonstrating NMFP’s critical role in operational deployments. Despite budget challenges, he secured $40 million in sustainable funding for Navy Medicine Research and Development, addressing health threats and enhancing warfighter survivability. All nine DHN-PR Military Treatment Facilities maintained Joint Commission accreditation, with Naval Medical Center San Diego, U.S. Naval Hospital Guam, and Naval Hospital Twentynine Palms each earning ‘A’ grades from Leapfrog, reflecting a commitment to patient safety and clinical excellence. The facilities provide more than 3,000 primary care encounters, 500 dental procedures and 3,500 specialty visits daily, while training over 400 residents in 24 Graduate Medical Education programs. Valdes also led DHN-PR to financial self-sufficiency in under 15 months, becoming one of only two DHA networks to achieve that milestone. (U.S. Navy photo by Arsenio R. Cortez Jr.)
Rear Adm. Darin K. Via, Navy Surgeon General and chief, Bureau of Medicine and Surgery, gives his remarks during the Naval Medical Forces Pacific change of command ceremony held at Naval Medical Center San Diego on July 25, 2025. During the ceremony, Rear Adm. Guido Valdes relinquished command to Rear Adm. Kevin Brown, after serving as the commander of NMFP since May 2022. Via emphasized the importance of NMFP and DHN-PR to the Navy Medicine mission. “For the past three years, Guido and his team of unsung heroes of operational health services readiness have been "manning newly established platforms and deploying medical warfighters around the world in direct support of combat operations and deterring Chinese aggression, providing health security cooperation in support of the Pacific Fleet and Indo-Pacific Commander,” Via said. (U.S. Navy photo by Arsenio R. Cortez Jr.)
Rear Adm. Kevin Brown, the new commander, Naval Medical Forces Pacific (NMFP) and director, Defense Health Network-Pacific Rim, salutes Rear Adm. Darin K. Via, Navy Surgeon General and chief, Bureau of Medicine and Surgery during a change of command ceremony held at Naval Medical Center San Diego on July 25, 2025. During the ceremony, Brown relieved Rear Adm. Guido Valdes. “I can think of no better place and no more qualified team than the Naval Medical Forces Pacific and Defense Health Network – Pacific Rim,” Brown said. “Your expertise in health care delivery is well demonstrated, your commitment to our beneficiaries and the operational mission is unmatched, and you offer unlimited potential as a research and warfighting readiness platform. I wouldn’t want to be anyplace else today and can’t wait to get after our important work together.” (U.S. Navy photo by Arsenio R. Cortez Jr.)
LIMÓN, Costa Rica (July 24, 2025) Capt. Grace Key, commanding officer, USNS Comfort Medical Treatment Facility (MTF), and Capt. Kathryn Stewart, executive officer, USNS Comfort MTF, watch as the Mercy-class hospital ship USNS Comfort (T-AH 20) arrives in Limón, Costa Rica during Continuing Promise 2025, July 24, 2025. Continuing Promise 2025 is the 16th iteration of the U.S. 4th Fleet/U.S. Naval Forces Southern Command-led mission since 2007, which aims to foster goodwill, strengthen existing partnerships with partner nations, and form new partnerships between host nations, non-federal entities, and international organizations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Deven Fernandez)
LIMÓN, Costa Rica (July 24, 2025) The Mercy-class hospital ship USNS Comfort (T-AH 20) arrives in Limón, Costa Rica during Continuing Promise 2025, July 24, 2025. Continuing Promise 2025 is the 16th iteration of the U.S. 4th Fleet/U.S. Naval Forces Southern Command-led mission since 2007, which aims to foster goodwill, strengthen existing partnerships with partner nations, and form new partnerships between host nations, non-federal entities, and international organizations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Deven Fernandez)
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, participates in a tabletop exercise in the Kingdom of Tonga as part of Pacific Partnership 2025. Alongside Lt. William Douthitt, Lt. j.g. William Chipmon, Lt. Iyanna Alexander, and Hospital Corpsman 3rd Class Camille Erespe, Carter helped facilitate the scenario-based training focused on improving response strategies for a potential Salmonella outbreak. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).
Cmdr. Christina Carter, a Navy public health nurse currently serving as the Director for Public Health at Naval Hospital Twentynine Palms and Navy Medicine Readiness and Training Command Twentynine Palms, teaches a Basic Life Support class in the Kingdom of Tonga, as part of Pacific Partnership 2025. Pacific Partnership is the U.S. Navy’s largest annual humanitarian mission, aimed at strengthening disaster response capabilities, building relationships with host nations, and improving health outcomes through education and collaboration (U.S. Navy Courtesy Photo).

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