Subscribe to updates for Multiple Payers - CAREFIRST BLUECROSS BLUESHIELD, CAREFIRST MEDICARE ADVANTAGE, CAREFIRST BLUECROSS BLUESHIELD, CAREFIRST BCBS MARYLAND - Multiple Transactions - We have been notified by the payer CareFirst of a system issue which is affecting their ab... via email and/or text message. You'll receive email notifications when incidents are updated, and text message notifications whenever Payer Notifications creates or resolves an incident.