Flu vaccines will be available at McGill Dec. 6 from 10 AM to 6 PM for active duty and TRICARE beneficiaries enrolled at a military facility (not enrolled in US Family Health or Johns Hopkins).

Health Clinics

Barquist-Detrick Services

Appointments and Referrals

Hours of Operation / Contact Information

The Appointment Line hours are: Mon - Fri: 7 a.m. to 4 p.m.

To make an appointment, please call 301-619-7175 or 866-319-8982. 

You may also use TRICARE Online at to book an appointment. 


The Clinic provides primary medical care to enrolled TRICARE Prime beneficiaries.   

To verify your eligibility, please contact 1-800-444-5445 or visit for more information. 

Nurse Advice Line and After Duty Hours Access

If you need medical assistance outside of the normal business hours, you must contact the Nurse Advice Line (NAL) at 1-800-874-2273, option 1. Depending on the illness and/or circumstances, you may be given either self-treatment measures to perform at home, a next day appointment at the Clinic, or directed to an Emergency Room or Urgent Care Center.


The Primary Care Manager (PCM) is responsible for all medical care for Tricare Prime patients. If specialty care is needed, the PCM will initiate a referral.

Most specialty care for Fort Detrick patients will be provided by Walter Reed National Military Medical Center (WRNMMC).

The patient care plan the PCM provides at the end of the visit will instruct as to whether a referral to WRNMMC or the civilian network will be processed. The instructions for making an appointment are different for each option. Those patients going to the civilian network will receive authorization letters from TRICARE. The letter will contain the contact information of the specialist.

Patients referred to WRNMMC will call the Central Appointing Line (1-855-227-6331) to make an appointment two business days after seeing their PCM.

Patient Resources Services

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