MassHealth Provider Online Service Center: Manage Your Business With MassHealth

Services Offered Via MassHealth Provider Online Service Center (POSC)

MassHealth Provider Online Service Center (POSC) is a registered and secure web portal of the Commonwealth of Massachusetts and specially designed for MassHealth service providers, business associates, and non-profit organizations. MassHealth Provider Online Service Center (POSC) provides online access for health-related services and accounts online. The online service portal helps providers in handling and maintaining the records of patients or registered members. The services offered through the MassHealth Online Service Center include:

  • Enrollment Services: Interested individuals or providers of MassHealth can enroll themselves through the online service portal that is mentioned on the given path. After enrolment, providers can avail a valid user ID and password through they can get access to all online services and facilities offered by MassHealth.
  • Update Services/Facilities: MassHealth Provider Online Service Center is only the portal through which MassHealth providers can update their personal information like address, phone number, email address and other identification documents.
  • Health & Human Services: MassHealth offers a wide range of health and life related insurance programs for families, individuals, kids and special persons. At the MassHealth Provider Online Service Center, applicants can claim or report their service plans and benefits.
  • Online Service Support: Providers of MassHealth can avail 24/7 help regarding all services and programs offered by the organization including claims, transactions, codes, eligibilty issues, program incentives, membership benefits, service authorizations, forgotten user ID's, passwords and many others by just making a call at 1-800-841-2900

Connect With MassHealth Provider Customer Service Center

  • Customer Service 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 communicate with the service team of POSC (Provider Online Service Center) through emails, send your queries or requests at All emails are being reviewed on regular basis and reverted back within the business days and hours.
  • Service Hours: The service office is open during Monday–Friday: 8:00 a.m. – 5:00 p.m.

MassHealth ORP Providers Customer Service Center

  • Customer Service Support: (800) 841-2900
  • Nonbilling Pharmacist Application Hours: Monday – Friday: 8 a.m. to 5 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
  • Hours: Monday through Friday: 8 a.m. to 6 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 Hours: Monday–Friday: 8 a.m.–5 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
Service Number: +16175332300
Hours: Monday to Friday: 8:00am to 5:00pm
Saturday: Closed
Sunday: Closed

Home Health Care
169 Liberty St, Middleton, MA 01949
Service Number: +19784061327

Partners Health Care
5 Wally Krueger Way # 4, Bridgewater, MA 02324
Service Number: +18447444200
Hours: Open on all days 24hrs

University Health Services
150 Infirmary Way, Amherst, MA 01003
Service Number: +14135775000
Hours: Monday to Friday: 9:00am to 5:00pm
Saturday: Closed
Sunday: Closed

Ace Medical Services
90 Madison St, Worcester, MA 01608
Service Number: +15087923800

Home Care Assistance
445 Washington St, Wellesley, MA 02482
Service Number: +17812390060
Hours: Open on all days 24hrs

Athena Home Health of Massachusetts
10 Riverside Dr, Lakeville, MA 02347
Service Number: +15086735500
Hours: Open on all days 24hrs