ATK

BCBS Prefix ATK

Anthem Blue Cross and Blue Shield of Connecticut

Connecticut • HMO, PPO, Medicare Advantage, Medicaid

Billing essentials

Provider phone
(800) 922-3242
Electronic payer ID
00060
Claims mailing address
P.O. Box 533, North Haven, CT 06473-0533
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(800) 922-3242

Coverage under prefix ATK

HMO

HMO coverage means this member must use providers within the plan's network. A primary care physician serves as the care coordinator and must authorize specialist referrals. Emergency services are the primary exception to the network requirement. Always verify referral status before providing non-emergency specialty care.

PPO

This is a Preferred Provider Organization (PPO) prefix. PPO plans are the most common BCBS plan type. Members have the freedom to self-refer to specialists. Claims for in-network services are typically processed faster and reimbursed at higher rates than out-of-network claims.

Medicare Advantage

Medicare Advantage coverage under this prefix means the plan administers Medicare Part A and Part B benefits on behalf of CMS. These claims may have different processing rules than commercial claims, including different prior authorization requirements and appeal timelines. CMS timely filing rules (365 days) typically apply.

Medicaid

Medicaid managed care under this BCBS prefix means the state has contracted with this plan to administer Medicaid benefits. Balance billing Medicaid members is prohibited. Timely filing requirements may follow state Medicaid rules rather than the plan's commercial deadlines. Contact the plan to confirm submission requirements.

About Anthem Blue Cross and Blue Shield of Connecticut

Independent licensee of the Blue Cross Blue Shield Association serving Connecticut members with commercial, Medicare, and Medicaid plans.