Maintaining MassHealth Provider File Information

Providers are required to maintain the accuracy of their provider file information with MassHealth.

For all MassHealth providers

MassHealth Regulations at 130 CMR 450.223(B) require providers to submit any changes prior to but no later than the date of the change to avoid any disruption in payments. Failure to do so constitutes a breach of the provider contract.

Changes may include

• Affiliations/Links
• Address
• Contact Information
• Disenrollment
• Ownership
• Tax identification
• Licensure
• Organizational structure; and
• Other credentials, such as certifications or qualifications that may affect your eligibility to participate in MassHealth. 

Send your request to update provider file information using the provider self-service site: 

MassHealth Provider Self-Service

You may also mail your request to update provider file information to: 

MassHealth Provider Enrollment
P.O. Box 278
Quincy, MA 02171

Include your MassHealth provider number (PID/SL) and National Provider Identifier (NPI) on all correspondence.

If you have a change of address, please go to the Change of Address-Provider Requirements page for more information. 

For LTSS and Dental Providers

LTSS

For MassHealth's Long-Term Services and Supports (LTSS) program

• Go to MassHealth LTSS Provider Portal for a list of LTSS provider types (under Provider Resources)
• Call LTSS Provider Service Center at [phone].
• Email [e-mail]

Dental

For dental providers, contact the MassHealth Dental Customer Service Center at [phone].

Last updated:	October 30, 2025