Attention TRICARE beneficiaries!  
You may experience busy signals when calling the military pharmacy prescription refill interactive voice response system – or prescription refill line – Jan. 26 to Feb. 5, 2026, as the system is updated.  
Each military pharmacy’s prescription refill line may be unavailable for about two hours. If you call the prescription refill line at this time, you will hear a busy signal. Please wait and call back to complete your refill later.  
You may still use the MHS GENESIS Patient Portal to refill your prescriptions.  
You may report issues to the DHA Global Service Center by calling 800-600-9332. 

About Us

Image of Yokota Air Base

About Us

The 374th Medical Group ensures medical readiness of the 374th Airlift Wing, 5th Air Force, and U.S. Forces Japan. The 374th MDG maintains 57 war reserve materiel projects, including the Department of Defense’s largest Patient Movement Item inventory, and deploys Expeditionary Medical Support for global contingency operations. The facility operates 15 inpatient beds and is expandable to 115 beds. The 374th MDG provides health care, including occupational health, preventive medicine, and environmental protection, to over 11,000 base personnel and is the aeromedical evacuation hub for mainland Japan.

Mission: Samurai Medics, providing Ready Reliable Care anytime, anywhere 
Vision: Agile and Resilient Medics, committed to ensuring a free Indo-Pacific region

Don't forget to keep your family's information up to date in DEERS!