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 Osan Air Base

About Us

Location: 51st Medical Group, 777 Songtan Boulevard, Unit 2060, Osan Air Base, APO AP 96278-2060, South Korea

*Monday through Friday, 7 a.m. to 5 p.m. Closed the third Thursday of every month in support of readiness training day. Hours may vary by clinic. Please refer to your specific clinic for hours of operation.

Telephone: 0505-784-3627 or DSN 315-784-3627

The 51st Medical Group's mission is to maintain and ensure medical readiness for contingencies by providing high-quality, Trusted Care for approximately 8,000 enrollees and 20,000 beneficiaries. Osan’s Mustang Medics prepare daily for any contingencies if and when they occur, with the foremost priority being “ready to fight tonight.” Additionally, the 51st Medical Group provides oversight of medical materiel and independent duty medical technicians at four collocated operating bases spanning the Korean peninsula.

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