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Blue Cross of Idaho

Idaho • 223 prefixes

Also known as: BCSI, Idaho Blue Cross

Billing reference

Provider phone
(208) 286-3656

Verified Aug 2026 · source

4 exceptions — check before you submit

Other departments

  • (208) 286-3602 — Provider Relations department (non-claims general inquiries)
  • (866) 283-5723 — Provider Relations toll-free
  • (866) 588-6174 — Provider Support (appears to be different from Provider Contact Center)
  • (866) 482-2250 — toll-free alternative for Provider Contact Center
Electronic payer ID
BLUEC

Verified Aug 2026 · source

1 exception — check before you submit

Changes on a date

  • SB612 — legacy clearinghouse ID
Claims mailing address
P.O. Box 7408, Boise, ID 83707

Verified Aug 2026 · source

Timely filing limit
180 daysCompare all plans

Verified Aug 2026 · source

1 exception — check before you submit

Depends on the plan type

  • 365 days — Medicare Advantage claims
Prior authorization phone
(208) 395-8210

Billing Blue Cross of Idaho from outside Idaho?

Usually you do not send the claim to Blue Cross of Idaho. Under the BlueCard program, a provider treating a member from another Blue plan submits the claim to their own local Blue Cross Blue Shield plan, which then routes it to Blue Cross of Idaho for processing.

  • The payer ID and claims address above are for filing within Idaho. Filing from elsewhere, use your local plan's details instead.
  • Prior authorizationis generally handled by the member's home plan — so Blue Cross of Idaho, wherever you are.
  • Your timely filing limit is set by your own contract with your local Blue plan, not by the figure above. 365 days is customary but contracts vary.
  • To check eligibility and benefits for an out-of-area Blue member, call 1-800-676-BLUE (1-800-676-2583).

Arrangements vary by contract, and self-funded (ASO) accounts can differ — confirm with your local Blue plan before filing. See the BlueCard Program Provider Manual for the full rules.

About Blue Cross of Idaho

Independent licensee of the Blue Cross Blue Shield Association providing commercial, Medicare and Medicaid plans in Idaho.