MassHealth Dental - MassHealth Dental. Health Details: Please reach out to your MassHealth Credentialing Partner at 1-800-233-1468. • Or reach out via email at MassHealthEnrollment&[email protected--> Thank you for your participation with the MassHealth Dental Program. RESOURCES. Please see resources below to help you get started in the new Provider portal: masshealth dental find a dentist.