Outpatient services, including the Main and Satellite Pharmacies and Laboratory will be closed on Friday, May 22, 2026 & Monday, May 25, 2026.

Inpatient operations and the Emergency Department remain open 24/7/365.

The MHS Nurse Advice Line is also available 24/7 to TRICARE beneficiaries for health-related questions and guidance. You can reach the Nurse Advice Line by calling 800-TRICARE (874-2273) or visiting MHSNurseAdviceLine.com

News & Gallery

Articles

Members of Mike O'Callaghan Military Medical Center's Cardiology team celebrate the first successful performance of a groundbreaking cardiac procedure in the state of Nevada.

Feb. 26, 2026

Landmark Cardiac Procedure at Mike O'Callaghan Military Medical Center Made Possible by DoW-VA Resource Sharing

NELLIS AIR FORCE BASE, Nev. — A physician from the Department of Veterans Affairs performed a landmark cardiac procedure at the Mike O'Callaghan Military Medical Center, the first time that it has been performed successfully in the state of Nevada. This achievement represents a significant step forward for local cardiac care and showcases the success of a resource-sharing agreement between two healthcare systems.

U.S. Air Force Senior Airman Jaiveion Turner, left, a health services management journeyman, is evaluated by Staff Sgt. Abey Lewis, right, an aerospace medical technician, both assigned to the 99th Medical Group (MDG), on his needle decompression skills during the 2025 Diamondback Medic Rodeo at Nellis Air Force Base, Nevada, Dec. 9, 2025.

Jan. 12, 2026

Nellis Medics Take the Reins, Host First Medic Rodeo

NELLIS AIR FORCE BASE, Nev. — Cannon blasts echoed across the desert and a helicopter hovered overhead as the cries of casualties cut through the air. This scenario was no ordinary training day; it was the inaugural Medic Rodeo at Nellis Air Force Base, a grueling race against the clock that would test the skills of the installation's medics.

Photo of MOMMC Emergency room with display of A hospital safety grade

Dec. 4, 2025

Mike O’Callaghan Military Medical Center earns an ‘A’ Safety Grade

NELLIS AIR FORCE BASE, Nev. — Mike O’Callaghan Military Medical Center (MOMMC) has received an “A” Leapfrog Hospital Safety Grade for Fall 2025, demonstrating a commitment to providing high-quality care to all patients.

Paramedic Staff Sgt. Kenneth McIntyre sits inside an ambulance at Mike O'Callaghan Military Medical Center

May 6, 2025

A Breath of Relief: How One Airman's Training Saved a Life

NELLIS AIR FORCE BASE, Nev. — Paramedic Staff Sgt. Kenneth McIntyre's dedication and skill make him invaluable to MOMMC and the Air Force. His actions, while simply "part of the job" for him, are heroic to those he helps, like Trauma Nurse Capt. Angela Leonardo.

The Joint Commission Gold Seal of Approval

Jan. 10, 2025

Mike O’Callaghan Military Medical Center awarded The Joint Commission’s Gold Seal of Approval

NELLIS AIR FORCE BASE, Nev. — Mike O’Callaghan Military Medical Center (MOMMC) once again earned The Joint Commission’s Gold Seal of Approval for Hospital Accreditation in recognition of MOMMC’s commitment to providing safe and quality patient care.

The new Aeromedical Nurse Practitioner career field has grown significantly and improved squadron medical readiness by bridging the gap between medical services and squadrons around the Air Force since it started in 2019. At Creech Air Force Base, there are two ANPs, and this is how they have impacted the mission.

Dec. 16, 2024

Bridging the Gap: ANPs at Creech AFB Improve Squadron Medical Readiness

CREECH AIR FORCE BASE, Nev. — The new Aeromedical Nurse Practitioner career field has grown significantly and improved squadron medical readiness by bridging the gap between medical services and squadrons around the Air Force since it started in 2019. At Creech Air Force Base, there are two ANPs, and this is how they have impacted the mission.

Nurse standing in trauma room

May 7, 2024

Air Force nurse puts trauma experience to test in new role

NELLIS AIR FORCE BASE, Nev. — Trauma nurse Capt. Angela Leonardo thrives on the chaos of the emergency room. As the Air Force’s only trauma center, Mike O’Callaghan Military Medical Center (MOMMC) offers Air Force medics like Leonardo valuable life-saving opportunities while also providing the Las Vegas community with additional access to emergency care.

Surgeon standing in operating room

Dec. 19, 2023

Team Captain: Nellis Chief of Surgery Leverages Sports Background to Lead Surgical Cadre

NELLIS AIR FORCE BASE, Nev. — As a former defensive end for the Air Force Academy Football Team, Maj. (Dr.) Fortune Egbulefu has a special interest in orthopedic medicine. Now an orthopedic surgeon and Mike O’Callaghan Military Medical Center’s Chief of Surgery, Egbulefu provides leadership to MOMMC’s surgical staff and state-of-the-art care to beneficiaries and veterans.

U.S. Air Force Col. Roy Louque, 99th Inpatient Surgical Squadron’s master clinician, right, speaks to Currency Training Program (CTP) participants at Nellis Air Force Base, Nevada, Aug. 24, 2023. The 99th MDG’s CTP provides U.S. Air Force medical personnel with the training and skill set needed for adequate and efficient care down range.

Sept. 7, 2023

Mike O'Callaghan Military Medical Center: Preparing Air Force medical Airmen for evolving demands

NELLIS AIR FORCE BASE, Nev. — The Mike O’Callaghan Military Medical Center hosted medical professionals from Luke Air Force Base for a currency training program from Aug. 21 to Sept. 1. MOMMC is a nationally-verified Level III trauma center providing preventive, emergency, and acute care services and makes it an optimal choice for the CTP. “After arriving at Nellis for

Image of two Airmen treating a patient.

Oct. 27, 2022

Air Force SMART program sustains readiness and currency through tailored training

FALLS CHURCH, Va. — The Air Force’s Sustained Medical and Readiness Trained, or SMART, program has become a dynamic training platform. Through tailored training and multidisciplinary opportunities, Air Force medics retain their currency and are ready for the fight.

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