BCBS Alpha Prefix from CAA to CZZ (UPDATE 2025)

BCBS member ID prefixes assist medical billers, healthcare providers, and patients in identifying their BCBS healthcare plans. In this article, we summarize all the BCBS Alpha Prefixes, particularly having prefixes ranging from CAA to CZZ, as well as details on their corresponding home plan names and websites.

To make this easier, we have organized the major prefixes into a table format. Additionally, you’ll find helpful links to BCBS provider phone numbers for each state.

Major BCBS Alpha Prefixes Ranging Between CAA to CZZ

List of BCBS Alpha Prefixes from CAA to CZZ

To further assist you, here’s a comprehensive list of all the BCBS Alpha Prefixes ranging from CAA to CZZ, including various home plan names and their respective websites:

Why This Information is Important

Understanding these prefixes is vital for accurate claims processing, minimizing denials, and ensuring smooth communication between providers and payers. BCBS prefixes designate members’ insurance plans and often help healthcare workers quickly identify the correct home plan to contact for insurance-related matters.