MassHealth Provider Online Service Center

The MassHealth Provider Online Service Center (POSC) stands as a secure web portal sanctioned by the Commonwealth of Massachusetts, exclusively crafted for MassHealth service providers, business associates, and non-profit organizations. This online service platform facilitates access to health-related services and accounts. Tailored for the efficient handling and maintenance of patient or member records, the MassHealth Online Service Center offers a spectrum of services:

Enrollment Services

Interested individuals or MassHealth providers can enroll through the provided online portal. Following enrollment, providers receive a valid user ID and password, granting access to a myriad of online services and facilities provided by MassHealth.

Update Services/Facilities

The MassHealth Provider Online Service Center serves as the exclusive portal through which MassHealth providers can update personal information, including addresses, phone numbers, email addresses, and other identification documents.

Health & Human Services

MassHealth offers an extensive array of health and life-related insurance programs catering to families, individuals, children, and special individuals. At the MassHealth Provider Online Service Center, applicants can claim or report service plans and benefits.

Online Service Support

Providers of MassHealth can access 24/7 assistance regarding all services and programs offered by the organization, covering claims, transactions, codes, eligibility issues, program incentives, membership benefits, service authorizations, forgotten user IDs, passwords, and more by calling 1-800-841-2900.

Connect With MassHealth Provider Customer Service Center

Service Center Number

For general issues, claims, service requests and program incentives, dial 1-800-841-2900 or fax at (617) 988-8974.

Service Center Location

MassHealth Provider customer service office is addressed at 100 Hancock St., 6th Floor, Quincy, MA 02171.

TTY/TDD Support

Special individuals/providers can reach out to the service office through the given helpline number (800) 497-4648

Health and Human Services

For all MassHealth and human services, call at (617) 573-1600 or dial 1-800-841-2900

Email Support

To contact the service team of POSC (Provider Online Service Center) via email, kindly send your queries or requests to All emails are regularly reviewed, and responses are provided within standard business days and hours.

Service Hours

The service office is open during Monday to Friday between: 8:00 a.m. to 5:00 p.m.

MassHealth ORP Providers Customer Service Center

  • Customer Service Support: (800) 841-2900
  • Nonbilling Pharmacist Application Monday to Friday between: 8:00 a.m. to 5:00 p.m.
  • MassHealth Dental Program Customer Service: (800) 207-5019
  • ORP Providers Email:
  • MassHealth Credentialing: 1-800-233-1468 / MassHealthEnrollment&

MassHealth LTSS Providers Customer Service Center

  • Visit/Write at: MassHealth LTSS, PO Box 159108, Boston, MA 02215
  • General Service Support: (844) 368-5184
  • Service Authorization Helpline: (800) 862-8341
  • Monday through Friday between: 8:00 a.m. to 6:00 p.m. ET
  • Email Support:
  • Fax support: (888) 832-3006

MassHealth Provider Publications Customer Service Center

  • Service Address: Attn: MassHealth Forms Distribution, P.O. Box 121205, Boston, MA 02112-1205
  • Main Customer Service Number: (800) 841-2900
  • Service Monday to Friday between: 8:00 a.m. to 5:00 p.m.
  • TTY Helpline: (800) 497-4648
  • Email Service Support:
  • Fax help: (617) 988-8973

MassHealth Service Centers/Locations Near Me

Harbor Health Services Inc

1135 Morton St, Mattapan, MA 02126
Monday to Friday between 8:00 a.m. to 5:00 p.m.
Saturday: Closed
Sunday: Closed

Home Health Care

169 Liberty St, Middleton, MA 01949

Partners Health Care

5 Wally Krueger Way # 4, Bridgewater, MA 02324
Open on all days 24hrs

University Health Services

150 Infirmary Way, Amherst, MA 01003
Monday to Friday: 9:00 a.m. to 5:00 p.m.
Saturday: Closed
Sunday: Closed

Ace Medical Services

90 Madison St, Worcester, MA 01608

Home Care Assistance

445 Washington St, Wellesley, MA 02482
Open on all days 24hrs

Athena Home Health of Massachusetts

10 Riverside Dr, Lakeville, MA 02347
Open on all days 24hrs

Contact by Scan

Contact MassHealth Provider Online Service Center by Scanning this QR Code

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