Provider Handbook: Important Information

This is part of the MassHealth Provider Handbook

Below is information for MassHealth network providers. Please note that some is specific to certain provider types. 

Massachusetts Behavioral Health Partnership

masspartnership.com
Phone: [phone]

MassHealth Long-Term Services and Supports (LTSS) Provider Service Center (LTSS providers)

MassHealth's LTSS Program

MassHealth LTSS provider portal: masshealthltss.com
Phone: [phone]
Email: [e-mail]
Mail: MassHealth LTSS, PO Box 159108, Boston, MA 02215
Fax: [phone]

Dental Customer Service and Dental Provider Portal

Web: masshealth-dental.org 
Phone: [phone], TTY: 711 
Mail: MassHealth, PO Box 2906, Milwaukee, WI 53201-2906 

MassHealth Customer Service (non-dental, non-LTSS)

Mail: MassHealth Customer Service, PO Box 278, Quincy, MA 02171-0278
Phone: [phone], TDD/TTY: 711
Email: [e-mail]
Fax: [phone]

Electronic Data Interchange Unit 

Web: Electronic Data Interchange (EDI) and HIPAA Information
Phone: [phone], TDD/TTY: 711
Email: [e-mail]

Health Safety Net (HSN)

Phone: [phone]
Email: [e-mail]

Pharmacy (non–HSN)

Phone: [phone] 
Web: MassHealth Pharmacy Facts

Pharmacy Prior Authorization (PA)

UMass Chan Medical School 
Phone: [phone] 
Fax: [phone] 

Drug Utilization Review Program 

ForHealth Consulting
UMass Chan Medical School

Phone: [phone]
Fax: [phone]
Mail: PO Box 2586, Worcester, MA 01613-2586

Non-Pharmacy PA (non-LTSS)

PA requests for non-pharmacy services

Phone: [phone]

MassHealth PA

Mail: Attn: Prior Authorization 
1 Enterprise Drive, 4th Floor, Quincy, MA 02171

Additional Information

Massachusetts Attorney General’s Medicaid fraud tip line 

Web: File a Medicaid Fraud Complaint
Phone: [phone]
Fax: [phone]

VendorWeb

Web: VendorWeb 
Phone: [phone] 
Fax: [phone]

Helpful Links

Provider Online Service Center (POSC)

Provider Directory

Date published:	July 29, 2022
Last updated:	August 21, 2026