Using Other Insurance

When you have Other Health InsuranceHealth insurance you have in addition to TRICARE, such as Medicare or an employer-sponsored health insurance. TRICARE supplements don’t qualify as "other health insurance." (OHI) with pharmacy benefits, your other health insurance pays first and TRICARE pays second. You can avoid higher costs by getting your prescriptions filled at a TRICARE network pharmacy that is also in your other plan's network.

TRICARE Pharmacy Home Delivery

You can’t use Home Delivery if you have other health insurance, including Medicare Part D, unless:

  • Your other plan doesn’t include pharmacy benefits,
  • The drug you need isn’t covered by your other plan, or
  • You’ve met your other plan’s benefit cap

If you’ve met any of these requirements, you can get your prescription filled through Home Delivery. You'll need to send proof from your other plan that it isn't covered or you've met the benefit cap.

TRICARE Network Pharmacies

If you have other health insurance, it doesn’t prevent you from using a TRICARE retail network pharmacy. Your other plan pays first and TRICARE pays second.

Online Coordination of Benefits

When you get your prescriptions at a network pharmacy, tell your pharmacist you also have TRICARE. Your pharmacist will submit your prescription online to both plans at the same time.

When you process your pharmacy claims online, you:

  • Pay minimal out-of-pocket expenses
  • Never pay more than the TRICARE copayment
  • Don't need to submit paper claims

If you're using a mail order program through your other plan, online coordination of benefits isn't possible.

TRICARE becomes the first payer when:

  • The drug isn't covered by your other plan, but is covered by TRICARE
  • Coverage under your other plan is exhausted for the year

Filing Claims with OHI

You must file a prescription claim to get reimbursed for the eligible portion of your out-of-pocket expenses. To avoid delays or problems when processing your prescriptions claims, tell Express Scripts you have other health insurance. Complete a TRICARE Other Health Insurance Form and mail it to:

Express Scripts
P.O. Box 60903
Phoenix, AZ 85082-0903

Once you've exceeded the dollar limit for your OHI, or if the drug isn't covered by your OHI, you can file a claim with TRICARE for reimbursement. To file a claim:

  1. Fill out the TRICARE Claim Form-Patient's Request for Medical Payment (DD 2642) 
  2. Mail the form, your OHI explanation of benefits and receipts, to:
Express Scripts, Inc.
P.O. Box 52132
Phoenix, AZ 85082

Ending Other Health Insurance Coverage

If you no longer have other health insurance with pharmacy benefits, you must tell Express Scripts. >>Contact Express Scripts

Keep your receipts!

Once you’ve exceeded the dollar limit for your other health insurance (OHI) or if the drug isn’t covered by your OHI, you can file a claim with TRICARE for reimbursement.

Last Updated 4/5/2016

contact Your Contacts
Express Scripts, Inc.

Stateside: 1-877-363-1303
Overseas: 1-866-275-4732
(where toll-free service is established)

Express Scripts Website


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