How base pharmacies work for TFL retirees
- No cost: up to a 90-day supply of most covered drugs.
- Civilian prescriptions: most military pharmacies accept them, and many take electronic prescriptions, so your Medicare doctor can send prescriptions to the base.
- Formulary only: military pharmacies carry the Basic Core Formulary and many brand-name maintenance drugs on the TRICARE Uniform Formulary. Drugs that aren't on it generally aren't available.
Oklahoma's four base pharmacies
| Installation | Pharmacy | Worth knowing |
|---|---|---|
| Tinker AFB (Midwest City) | 72nd Medical Group pharmacy | TRICARE lists it as accepting electronic prescriptions from civilian providers |
| Fort Sill (Lawton) | Reynolds Army Health Clinic pharmacy | New and electronic prescriptions go to the Main Pharmacy first; the Pharmissary near the Commissary is refill-only |
| Vance AFB (Enid) | 71st Medical Group | One pharmacy, inside the clinic |
| Altus AFB (Altus) | 97th Medical Group pharmacy | Open to military members, retirees and families |
Hours and services change, so check the base's TRICARE website or call before you drive.
Before your first fill
- Check the formulary. Look up each drug on the TRICARE Formulary, then call the pharmacy to confirm it's stocked.
- Have your doctor send the prescription. Ask your Medicare doctor to e-prescribe to the base pharmacy, or bring a paper prescription.
- Bring your ID. Your uniformed services ID card gets you on base and proves TRICARE eligibility.
- Keep Part B. TFL, and your full TRICARE pharmacy benefit, depend on having Part A and Part B.
If you live far from Tinker, Fort Sill, Vance or Altus, home delivery is usually the next lowest-cost option. See our guide for veterans, TRICARE and military retirees. To compare Medicare options from the companies they work with, you can request a call from a licensed insurance agent.
Related questions
Do I need Part D with TFL?
When Part D may help.
How TFL works with Medicare
Who pays what.
Do I need Part B for TFL?
The Part B rule.
Sources
- TRICARE — Military Pharmacy
- TRICARE — 72nd Medical Group, Tinker Air Force Base Clinic
- Reynolds Army Health Clinic, Fort Sill — Pharmacy
- Military OneSource — Vance AFB health care
- Altus Air Force Base — Altus AFB pharmacy
- TRICARE — TRICARE For Life Handbook (August 2026)
More questions in this guide
- Can I use VA health care and Medicare together in Oklahoma?
- Do I need Medicare Part B to keep TRICARE For Life?
- Do I need Medicare Part D if I have TRICARE For Life?
- Does TRICARE For Life work with Medicare in Oklahoma?
Part of the guide: Veterans, Military Retirees and Medicare in Oklahoma · All questions
Frequently asked questions
Do I have to be enrolled at the base clinic to use its pharmacy?
No. TRICARE says you don't need to be enrolled at a military hospital or clinic to use its pharmacy, and most military pharmacies accept prescriptions from civilian providers. You still need base access with your uniformed services ID card.
I also have a Part D plan or other insurance. Can I still use the base pharmacy?
Yes. TRICARE says that as of September 27, 2025, military pharmacies bill your other health insurance as federal law requires. You still pay nothing, though processing may take a few minutes longer.
What if the base pharmacy doesn't stock my drug?
Staff may work with your doctor on an alternative, or you can use TRICARE Pharmacy Home Delivery or a TRICARE retail network pharmacy, which have copayments.
Medicare in your Oklahoma county
Plans, local agents and help, county by county: Oklahoma · Tulsa · Cleveland · Canadian · Comanche · Rogers · Wagoner · Payne · Pottawatomie · Creek · Muskogee · Garfield · Grady · Washington · Logan · Bryan · Le Flore · Carter · Cherokee · McClain · All 77 counties →