CareFirst BlueCross BlueShield Contact Directory

26 contact channels across 3 types (Fax, Mailing Address, Phone) for claims, prior authorization, provider services, and more.

Last verified Aug 25, 2026 from the payer's published directories.

Phone

13 rows

Contact	Purpose	Line of Business	Hours	Notes	Source
202-479-6444	Behavioral Health	Commercial	N/A	MHSA (Mental Health/Substance Abuse) pre-cert line – FEP alternate	View source
877-526-8390	Claims Status	All	Monday-Friday, 7:00 a.m.-6:00 p.m. Eastern Time	CareFirst Help Desk for claims status / inquiry-related technical support. - CareFirst Help Desk	View source
866-945-9839	Credentialing Enrollment	Commercial	N/A	CareFirst Administrators – general questions and access to Provider Information and Credentialing	View source
800-842-5975	Eligibility Benefits, Provider Services	All	N/A	Eligibility/benefits inquiry fallback contact when inquiry cannot be completed online. \| Provider Services for claims questions and payment-related questions. - If you cannot complete your Eligibility/Benefits inquiry online \| Claims denied because of enrollment, copay/deductible, lack of prior authorization, and claims payment.	View source
800-360-7654	Medical Management, Behavioral Health	Commercial	N/A	Case management phone – medical management (FEP) \| MHSA (Mental Health/Substance Abuse) pre-cert line – FEP	View source
800-294-5979	Pharmacy	Commercial	N/A	CVS Caremark is PBM for certain plans; line used for pharmacy drug prior authorization and appeals for fully insured DC plan members - Pharmacy drug prior authorization and appeals	View source
877-418-4133	Pharmacy	Medicaid	N/A	CVS Caremark is PBM for CareFirst Medicaid (CHPMD) - CareFirst CHPMD pharmacy prior authorization line (CVS/Caremark PA line)	View source
877-727-3784	Pharmacy	Commercial	N/A	CVS Caremark – FEP pharmacy contact	View source
888-346-3731	Pharmacy	Commercial	N/A	Specialty Pharmacy – FEP	View source
866-891-2802	Prior Authorization	Commercial	N/A	Dental prior authorizations for fully insured DC plan members (note: member-facing doc but lists dental prior auth phone)	View source
800-730-8543	Prior Authorization, Appeals Disputes	Medicaid	N/A	Provider Services Department toll-free contact for CareFirst CHPMD appeals/grievances form. - Telephonic inquiries for prior authorization – CareFirst Medicaid (CHPMD) \| CareFirst CHPMD Provider Services Department	View source
410-779-9359	Prior Authorization, Appeals Disputes	Medicaid	N/A	Provider Services Department for CareFirst CHPMD appeals/grievances form contact. - Telephonic inquiries for prior authorization – CareFirst Medicaid (CHPMD) alternate \| CareFirst CHPMD Provider Services Department	View source
202-479-6560	Provider Services	All	N/A	Provider Services for claims questions and payment-related questions. - Claims denied because of enrollment, copay/deductible, lack of prior authorization, and claims payment.	View source

Fax

10 rows

Contact	Purpose	Line of Business	Hours	Notes	Source
855-762-5205	Pharmacy	Medicaid	N/A	CVS Caremark is PBM for CareFirst Medicaid (CHPMD) - CareFirst CHPMD pharmacy prior authorization – fax for Formulary Exception/Prior Authorization Request	View source
443-753-2347	Prior Authorization	Medicare	N/A	Medicare Advantage pre-service review – behavioral health HMO/PPO	View source
443-753-2342	Prior Authorization	Medicare	N/A	Medicare Advantage pre-service review – outpatient services HMO/PPO	View source
443-753-2341	Prior Authorization	Medicare	N/A	Medicare Advantage pre-service review – inpatient services HMO/PPO	View source
443-753-2184	Prior Authorization	Medicaid	N/A	CareFirst Medicaid (CHPMD) SNF and medical injectables prior authorization requests – fax	View source
833-915-3865	Prior Authorization	Medicare	N/A	Medicare Advantage pre-service review – inpatient/outpatient DSNP only	View source
410-781-7661	Prior Authorization	Commercial	N/A	Precertification Request for Authorization of Services – general fax for non-participating providers	View source
410-505-2840	Prior Authorization	Commercial	N/A	Precertification Request for Authorization of Services – fax for CareFirst employees	View source
443-552-7408	Prior Authorization	Medicaid	N/A	General medical preauthorization – CareFirst Medicaid preauthorization request fax numbers (alternate)	View source
443-552-7407	Prior Authorization	Commercial	N/A	General medical preauthorization – CareFirst Medicaid preauthorization request fax numbers	View source

Mailing Addresses

3 rows

Contact	Purpose	Line of Business	Hours	Notes	Source
Mail Administrator, P.O. Box 14114, Lexington, KY 40512-4114	Appeals Disputes	Medicaid	N/A	Professional provider appeals mailing address. - Professional Providers	View source
Clinical Appeals and Analysis Unit (CAU), CareFirst BlueCross BlueShield, P.O. Box 17636, Baltimore, MD 21298-9375	Appeals Disputes	Medicaid	N/A	Institutional provider appeals mailing address. - Institutional Providers	View source
CareFirst BlueCross BlueShield Community Health Plan Maryland, PO BOX 14362, Lexington, KY 40512	Claims Submission	Medicaid	N/A	Paper claims mailing address for CareFirst Community Health Plan Maryland. - CareFirst Community Health Plan Maryland	View source

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Where this data comes from

Every contact in this directory comes from documents the payers publish themselves, such as provider manuals, quick reference guides, and contact pages, and each payer page shows when its contacts were last verified. You can see all of our data sources and how we process them.

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