The State Organization Index provides an alphabetical listing of government organizations, including commissions, departments, and bureaus.
Top-requested sites to log in to services provided by the state
Some changes in information or status that you must report to MassHealth Customer Services Center before the effective date of the change include:
All other changes must be reported to MassHealth within 14 days. See MassHealth regulations at 130 CMR 450.223 for more information about provider contract requirements.
Send your updated information in writing to
Attn: Provider Enrollment and Credentialing
P.O. Box 9162
Canton, MA 02021
Include your MassHealth provider number and tax identification number on all correspondence. If you have any questions about the documentation that you should send, contact MassHealth Customer Services Center at 1-800-841-2900, send an e-mail to email@example.com, or send a fax to 617-988-8974.
Open Monday–Friday 8 a.m.–5 p.m.