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Attention Providers: Recent EOP statements have displayed incorrect amounts in the "Other Carrier" field.
Please disregard these amounts. SCO and One Care members should not be balance billed. Any members billed should be reimbursed promptly.
If you need assistance during this time, call Provider Services at 866-420-9332

Give Us a Call to Enroll

Call our team at the number below to start your enrollment in CCA Senior Care Options (HMO D-SNP).

888-537-5816 (TTY 711)

October 1 to March 31, 8 am – 8 pm, 7 days a week

During the call, we will:

  • Confirm if you are eligible for the plan
  • Check if your doctor is in our network
  • Answer any questions you have
  • Assist you with the enrollment process

Enroll by Mail

Do you prefer mail? Download our CCA Senior Care Options Enrollment form, fill it out, and mail it to us at this address. We will then reach out to you to complete the process:

Commonwealth Care Alliance
Outreach and Enrollment Team
2 Avenue de Lafayette, 5th Floor
Boston, MA 02110

At no point will Commonwealth Care Alliance sell, trade, or lease any information collected on our site. The information provided will be used to contact you, provide you with information, or help you enroll.

CCA Senior Care Options (HMO D-SNP) is a Dual Special Needs Plan (D-SNP) with a Medicare contract and a contract with the Commonwealth of Massachusetts Medicaid program. Enrollment in the plan depends on the plan’s contract renewal with Medicare. This plan is a voluntary program that is available to anyone 65 and older who qualifies for MassHealth Standard and Original Medicare and does not have any other comprehensive health insurance, except Medicare.

To learn more or become a member, call

888-537-5816 (TTY 711)
October 1 to March 31, 8 am – 8 pm, 7 days a week