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

Health Services

Welcome to Mike O'Callaghan Military Medical Center Health Services

As a premier healthcare organization in the Department of Defense, our focus is to provide you world-class medical care in a healing environment that promotes better outcomes for our patients.

Our commitment to provide patient- and family-centered care in a culture of excellence is unwavering. We are certain you will experience that commitment firsthand while visiting our facility to receive care. Please use this portion of our website to see the types of services we offer.

Don't forget to keep your family's information updated in DEERS