OYS

BCBS Prefix OYS

Blue Shield of California

California • PPO, EPO, Medicare Advantage

Billing essentials

Provider phone
(800) 468-9935
Electronic payer ID
94036
Claims mailing address
P.O. Box 272630, Chico, CA 95927-2630
Timely filing limit
365 daysCompare all plans
Prior authorization phone
(800) 541-6652

Coverage under prefix OYS

PPO

This prefix is associated with a PPO plan. Preferred Provider Organization coverage gives members flexibility to see specialists without referrals and to use out-of-network providers at higher cost-sharing. Claims can be submitted for both in-network and out-of-network services, though reimbursement rates differ.

EPO

EPO coverage under this prefix means the member must use network providers but does not need referrals for specialist visits. This plan type is becoming more common as it offers lower premiums than PPO plans while providing more flexibility than HMOs. Verify network status before providing services.

Medicare Advantage

This prefix is associated with Medicare Advantage. MA plans combine hospital (Part A) and medical (Part B) coverage, and many include prescription drug coverage (Part D). When billing, confirm whether the plan uses the same payer ID for MA claims as for commercial claims, as many BCBS companies use separate IDs.

About Blue Shield of California

Nonprofit health plan providing 6 million Californians with affordable healthcare coverage including HMO, PPO, dental, and vision plans for individuals, families, and employers.