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Blue Cross Blue Shield of Massachusetts

BCBS MA

The provider portal for Blue Cross Blue Shield of Massachusetts is https://apps.availity.com/

Primary payer ID
700Compare transaction IDs ↓
Last successful claim statusWithin the past 48 hoursObserved across Substrate's claim-status network.
SupportedEDI 276/277EDI 270/271

Is your practice experiencing high volumes of no response claims or denials from Blue Cross Blue Shield of Massachusetts? Try Substrate Denial Intelligence here -->.

Coverage profile

How Substrate can help you with Blue Cross Blue Shield of Massachusetts

Substrate can help practices and billers with the following claims tasks for Blue Cross Blue Shield of Massachusetts.

Claim status

EDI 276/277

The Substrate Claim Status Agent can check clearinghouse claim status for your practice with Blue Cross Blue Shield of Massachusetts.

Available

Eligibility

EDI 270/271

The Substrate Eligibility Agent can verify patient benefits, identify TPAs and carve-outs, and more with Blue Cross Blue Shield of Massachusetts.

Available

Payer intelligence

Observed adjudication timing

How long completed claims in Substrate’s aggregate network took from payer receipt to the 835 payment date.

Median time to payment

8 days
10% of adjudications by
3 days
90% of adjudications by
17 days
Applicable state coverage
MA
Current As Of
July 2026

Five-month median trend

Days to 835 payment
Blue Cross Blue Shield of Massachusetts median observed adjudication timingMonthly median days from payer receipt to 835 payment from April 2026 through August 2026. Missing qualified months are shown as gaps.07.515AprMayJunJulAug
View chart data as a table
Blue Cross Blue Shield of Massachusetts observed adjudication timing by service month
Service monthMedian10% of adjudications by90% of adjudications byCompleted claimsCoverage
Apr9.2 days2 days29 days259MA
May11 days2 days30 days762MA
Jun11 days3 days16 days925MA
Jul8 days3 days17 days430MA
AugNo qualified data

Frequently asked questions

Blue Cross Blue Shield of Massachusetts payer FAQs

How do I check claim status with Blue Cross Blue Shield of Massachusetts?

Providers check Blue Cross Blue Shield of Massachusetts via EDI 276/277 when the payer ID is accepted. Substrate automates claim status across 3,500+ payers.

What is the payer ID for Blue Cross Blue Shield of Massachusetts?

The primary payer ID for Blue Cross Blue Shield of Massachusetts is 700. The correct routing ID can differ by clearinghouse and transaction, so compare the 837P, 837I, 835, 270, and 276 entries before submitting.

What is the provider portal for Blue Cross Blue Shield of Massachusetts?

The provider portal for Blue Cross Blue Shield of Massachusetts is https://apps.availity.com/. Available features depend on the payer and your account.

What are the 837 payer IDs for Blue Cross Blue Shield of Massachusetts?

The 837P and 837I payer ID for Blue Cross Blue Shield of Massachusetts is 700 via Stedi.

What is the 835 payer ID for Blue Cross Blue Shield of Massachusetts?

The 835 payer ID for Blue Cross Blue Shield of Massachusetts is 700 via Stedi.

What is the 270 payer ID for Blue Cross Blue Shield of Massachusetts?

The 270 payer IDs for Blue Cross Blue Shield of Massachusetts are 700 via Stedi and 700 via Availity.

What is the 276 payer ID for Blue Cross Blue Shield of Massachusetts?

The 276 payer IDs for Blue Cross Blue Shield of Massachusetts are 700 via Stedi and 700 via Availity.

What states does Blue Cross Blue Shield of Massachusetts operate in?

Blue Cross Blue Shield of Massachusetts operates in MA and NH.

Resource library

Routing reference

Blue Cross Blue Shield of Massachusetts payer IDs and operating states

Use the payer ID listed for the transaction you are submitting. Verify current routing and enrollment requirements with your clearinghouse.

Blue Cross Blue Shield of Massachusetts payer name, operating states, and transaction-specific payer IDs
Payer nameBlue Cross Blue Shield of Massachusetts
Operating statesMA, NH
837P professional claims payer IDStedi700
837I institutional claims payer IDStedi700
835 ERA payer IDStedi700Enrollment required
270 eligibility payer IDStedi700
270 eligibility payer IDAvaility700
276 claim status payer IDStedi700
276 claim status payer IDAvaility700

Payer contact directory

Blue Cross Blue Shield of Massachusetts phone and fax numbers

Use the number associated with your task. These contacts were stated in successful eligibility responses and may apply to specific benefits, products, or departments.

Eligibility / benefits phone
(800) 676-2583BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
Payer fax
(888) 282-1321BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
Blue Cross Blue Shield of Massachusetts payer phone and fax directory
Channel and numberPayer NotesDepartmentSpecialties
fax(888) 282-1321
  • BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
phone(203) 250-2601Eligibility / benefitsBenefit context: Contact Following Entity for Eligibility or Benefit Information
  • LC FND OF ANTHEM FLX DNTL NTWK.
Dental Care
phone(800) 335-8289Eligibility / benefitsBenefit context: Contact Following Entity for Eligibility or Benefit Information
  • DELTA DENTAL OF VA
Dental Care
phone(800) 676-2583Eligibility / benefitsBenefit context: Contact Following Entity for Eligibility or Benefit Information
  • BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
  • CUSTOMER SERVICE
Hospital, Hospital - Inpatient
phone(800) 972-8088Eligibility / benefitsBenefit context: Contact Following Entity for Eligibility or Benefit Information
  • CUSTOMER SERVICE
Hospital, Hospital - Inpatient
phone(844) 805-9802Eligibility / benefitsBenefit context: Contact Following Entity for Eligibility or Benefit Information
  • TEAMSTERS' RX/OPTUMRX
Pharmacy
phone(800) 238-2227Other stated context, Prior authorizationBenefit context: Co-Payment; Benefit context: Co-Insurance
  • ANTHEM BLUE CROSS AND BLUE SHIELD
  • PRECERT
Hospital, Hospital - Inpatient, Urgent Care
phone(800) 888-9255Utilization managementBenefit context: Co-Insurance
  • UTILIZATION MANAGEMENT
Hospital
phone(800) 892-1893Utilization managementBenefit context: Co-Insurance
  • UTILIZATION MANAGEMENT
Hospital
phone(855) 343-4851Utilization managementBenefit context: Co-Insurance
  • UTILIZATION MANAGEMENT
Hospital
phone(866) 470-6244Utilization managementBenefit context: Co-Insurance
  • UTILIZATION MANAGEMENT
Hospital
phone(800) 397-7337Other stated contextBenefit context: Co-Insurance
  • AVAILITY AUTH AND REFERRALS PAGE
Hospital - Inpatient
phone(800) 664-2583Other stated contextBenefit context: Active Coverage
  • HORIZON BCBSNJ
Health Benefit Plan Coverage
phone(800) 922-6621Other stated contextBenefit context: Co-Insurance
  • ANTHEM BLUE CROSS AND BLUE SHIELD
Hospital, Hospital - Inpatient
phone(855) 243-3326Other stated contextBenefit context: Co-Insurance
  • SLEEP MANAGEMENT SOLUTIONS
Hospital - Inpatient
phone(877) 342-5258Other stated contextBenefit context: Co-Insurance
  • PREMERA
Hospital - Inpatient
phone(800) 214-4844
  • BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
phone(800) 327-6716
  • BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
phone(800) 727-2227
  • BLUE CROSS BLUE SHIELD OF MASSACHUSETTS

Phone and fax numbers sourced directly from the payer response

Other aliases

Also known as

  • 00139
  • 00200
  • 10037
  • 12B14
  • 2424
  • 700
  • BS059
  • CBMA1
  • MABCBS
  • MABLS
  • SB700
  • SB700MA
  • BCBS Massachusetts
  • BCBSMA
  • Blue Cross Blue Shield Massachusetts
  • Blue Cross Blue Shield of Massachusetts - Medicare Advantage
  • BCBSMA12B1