Health Services

Urgent & Emergency Care

If you are experiencing an emergency, call 911 on base. To reach Osan Air Base Emergency Care, call 0505-784-2500 or DSN 315-784-2500.

Osan Air Base offers the following services:

  • Emergency Care

Urgent Care

Urgent Care services treat non-life-threatening health issues that require immediate attention, such as sprains, the flu, colds, and other common illnesses.

If you’re unsure about whether you need urgent care, contact the Military Health System Nurse Advice Line to speak to a registered nurse. Visit to find your country-specific number or to use web and video chat.

To learn about how TRICARE covers urgent care, visit the TRICARE Urgent Care page.

Emergency Care

If you are experiencing a life-threatening medical situation (including mental health emergencies), call 911 on base immediately or visit Osan Air Base if it's your nearest hospital. Emergency care services treat life-threatening medical issues such as threats to your life, limbs, sight, or safety.

Emergency Services at Osan Air Base

​We provide emergency services to active duty personnel, dependents, retirees and civil service members who work on base. Ambulance services responds to 911 emergencies on base only.

The Osan Air Base Hospital has an Emergency Room for emergent care, which is available to all who present, regardless of enrollment status or TRICARE eligibility. For non-enrollees, we refer patients seeking non urgent care to host nation hospitals to receive primary/routine care.

There are over 50 hospitals in the Republic of Korea that are in the TRICARE Network. A comprehensive listing can be attained from TRICARE Select Overseas.

Urgent & Emergency Care FAQs

Contact Us


Emergency Care
On Base

Military Health System Nurse Advice Line
1-800-TRICARE (874-2273)


Emergency Care
24 hours per day, 7 days per week


Emergency Room, Building 777, Lower Level; there is a stairwell to the left of the hospital’s main entrance; by vehicle, please go around the hospital building as if you were going towards the vet clinic or CDC

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