KST

BCBS Prefix KST

Blue Cross Blue Shield of Arizona

Arizona • PPO, Medicaid, Traditional Indemnity

Billing essentials

Provider phone
(844) 995-2583
Electronic payer ID
53589
Claims mailing address
P.O. Box 2924, Phoenix, AZ 85062-2924
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(602) 864-4320

Coverage under prefix KST

PPO

PPO (Preferred Provider Organization) plans allow members to visit any healthcare provider without a referral. In-network providers cost less, but out-of-network care is still covered at a reduced rate. When billing for a PPO plan, submit claims directly to the payer listed above. No referral documentation is needed.

Medicaid

This prefix is associated with Medicaid managed care. When a BCBS plan administers Medicaid, the claims process may differ from commercial coverage: different payer ID, different claims address, different prior authorization rules, and different timely filing limits. Always verify Medicaid-specific details before submitting.

Traditional Indemnity

This is a traditional indemnity prefix. Unlike managed care plans (HMO, PPO, EPO), indemnity plans do not use provider networks. There are no referral requirements and no restrictions on which providers the member can see. Submit claims to the payer listed above for reimbursement at the plan's allowed rate.

About Blue Cross Blue Shield of Arizona

Non-profit health insurance company and independent licensee of the Blue Cross Blue Shield Association serving more than 2 million members across Arizona with commercial, Medicaid, and Medicare plans.