EFT Payments Issued as Checks:CareFirst identified on or around May 10 an issue in which some providers who were set up to receive ACH/EFT payments instead received paper checks. This issue remains under active investigation. Providers do not need to take any action at this time. We are working toward resolution and will continue to share updates as more information becomes available, including expected timing.
ERAs Reflecting Check Information Instead of ACH:CareFirst is aware of an issue in which some Electronic Remittance Advices (ERAs) reflected check payment information instead of ACH/EFT details. This issue was resolved on May 29, 2026. CareFirst is currently working to reissue impacted ERAs to include the correct ACH/EFT information. Providers do not need to take any action at this time.
PreAuth/Provider Portal/CFD applications will be unavailable Sat,July 18 from 8AM to 2PM and Sun, July 19 from 8AM to 2PM

Institutional Ancillary Credentialing Overview

Why CareFirst?

Become a part of the largest provider network in the region. Today, more than 80 percent of the region’s most dedicated health care providers serve 3.4 million members in Maryland, D.C. and Northern Virginia.

Institutional and ancillary providers who have a physical location in the CareFirst service area are eligible to participate in our BlueChoice and/or Regional Participating Preferred Network (RPN). View a list of institutional/ancillary providers that are eligible to participate.

Institutional and ancillary providers are required to have a physical location in the CareFirst service area, meet all credentialing requirements and submit all required credentialing documents.

Providers have the right, upon request, to review the information used in credentialing decisions, to correct inaccurate information and to obtain the status of the credentialing process. To request this information, call (410) 872-3526.