INSURER FILING GUIDE
CareFirst BlueCross BlueShield (Maryland)
Use this public information to prepare your packet, then confirm the route on the insurer's own page.
AT A GLANCE
Claim facts
| Member form | |
|---|---|
| Portal upload | YES |
| Portal path | Log in > Claims > Submit a Claim Online > enter requested claim information and upload required documents |
| Mail address | CAREFIRST BLUECROSS BLUESHIELD MAIL ADMINISTRATOR, P.O. BOX 14116, LEXINGTON, KY 40512-4116 |
| Fax | Not published by the insurer |
| Attachments | Provider letterhead with person or organization name and address; patient name; date for each service; charge for each service; service description; provider Tax ID or NPI; physician or pharmacist signature; for psychotherapy, session length, session type, provider professional status, and professional license number when provider is not a medical doctor |
| Deadline | Not published by the insurer: the member claim page and form do not publish a universal member-filing limit |
| Outcome and status | My Account > Claims for recent claim status; EOB section under Claims |
| Processing time | About 30 days for a new claim; CareFirst also states more than 90 percent are processed within seven days after receipt |
| Caveats | The PDF is the in-service-area form and can also be used for BlueChoice Opt-Out Plus; HMO products may lack routine out-of-network coverage; employer and self-funded terms vary; Medicare Advantage and Medicaid are outside this row |
STEP BY STEP
Filing steps
Read date: 10-09-2026
Research steps
- Sign in to My Account, select Claims, then Submit a Claim Online. Enter the requested claim information and upload the required documents. CareFirst submit a claim
- Upload .bmp, .jpg, .pdf, .png, or .tiff files. Up to 20 items may be attached, with a 20 MB combined limit. A single itemized bill covering multiple service lines is uploaded once. NOT PUBLISHED: a per-file limit. CareFirst EOB and claim FAQ
- For the public PDF package, complete fillable Health Benefits Claim Form CUT0165-1S and sign item 18. Complete the optional assignment section only to request provider payment. NOT PUBLISHED: whether the online flow accepts this member form as an attachment rather than replacing it with on-screen fields. CareFirst Health Benefits Claim Form
- The itemized bill must carry provider letterhead with the person or organization name and address, patient name, individual service dates, charge for each service, service description, Tax ID or NPI, and the listed provider signature. For psychotherapy, it must also show session length, session type, professional status, and a professional license number when the provider is not a medical doctor. CareFirst Health Benefits Claim Form
- CareFirst says the member is notified immediately when the online claim is received. Claim payments are issued only to the policyholder. CareFirst submit a claim CareFirst EOB and claim FAQ
- NOT PUBLISHED: a universal member-filing deadline or typed-signature rule. CareFirst states that a new claim takes about 30 days to process and also states that more than 90 percent are processed within seven days after receipt. CareFirst EOB and claim FAQ
- Check recent claims and EOBs in My Account under Claims. CareFirst EOB and claim FAQ
Filing facts
- Portal upload: YES
- Portal: CareFirst My Account
- Portal path: Log in > Claims > Submit a Claim Online > enter requested claim information and upload required documents
- Mail address: CAREFIRST BLUECROSS BLUESHIELD MAIL ADMINISTRATOR, P.O. BOX 14116, LEXINGTON, KY 40512-4116
- Fax: NOT PUBLISHED
- Attach: Provider letterhead with person or organization name and address; patient name; date for each service; charge for each service; service description; provider Tax ID or NPI; physician or pharmacist signature; for psychotherapy, session length, session type, provider professional status, and professional license number when provider is not a medical doctor
- File types: .bmp; .jpg; .pdf; .png; .tiff
- File size limit: 20 MB combined; per-file limit NOT PUBLISHED
- Maximum files: 20 items per claim
- One file or separate files: Multiple files accepted; a single itemized bill covering multiple service lines is uploaded once
- Confirmation: Immediate notification when CareFirst receives the online claim
- Status check: My Account > Claims for recent claim status; EOB section under Claims
- Processing time: About 30 days for a new claim; CareFirst also states more than 90 percent are processed within seven days after receipt
- Member deadline: NOT PUBLISHED: the member claim page and form do not publish a universal member-filing limit
- Deadline basis: Plan document controls; the one-year statement on the public EOB page describes provider filing, not the member deadline
- Mental health route: No different public behavioral-health member self-file portal is published; the general form has psychotherapy-specific bill instructions
Confirm the address, fax number or portal path on the insurer's own claims page before you send; read on 10-09-2026.
Read on 10-09-2026 from https://member.carefirst.com/carefirst-resources/pdf/health-benefits-claim-form-in-service-area-cut0165-i.pdf. Confirm the address, fax number or portal path on the insurer's own claims page before you send.