MassHealth fax cover sheet and fax numbers: where to send

The MassHealth fax cover sheet is the official two-page "Health Coverage Mail/Fax Cover Sheet" on mass.gov, and most MassHealth paperwork - renewals, subsidized applications and verification documents - is faxed with it to the Health Insurance Processing Center at (857) 323-8300. Put the two cover pages first, then your documents, and you can send the whole thing from your phone with HonestFax - no fax machine needed.

This guide shows which of the three fax numbers printed on the cover sheet fits your documents, how to fill in the sheet, and the mistakes that get pages lost.

MassHealth fax numbers, by document

The cover sheet itself lists where each type of document goes. As of today:

What you're sending	Fax number	Goes to
MassHealth renewal forms, new paper applications for subsidized coverage (MassHealth, ConnectorCare, premium tax credits, Health Safety Net), and verification documents for MassHealth or mixed households	(857) 323-8300	Health Insurance Processing Center, P.O. Box 4405, Taunton, MA 02780
New paper applications for unsubsidized Health Connector insurance, closed enrollment verification, and verifications for Health Connector-only households	(617) 887-8745	Massachusetts Health Connector, P.O. Box 4404, Taunton, MA 02780
Application for Health Coverage for Seniors and People Needing Long-Term-Care Services (SACA-2), Supplement A and Buy-In applications	(617) 887-8799	Central Processing Unit, P.O. Box 290794, Charlestown, MA 02129

One rule beats the table: if MassHealth sent you a letter asking for documents, fax them to the number on that letter. The cover sheet says so itself, and the letter is the most specific instruction you have. If you're not sure where your papers go, call the MassHealth Customer Service Center at (800) 841-2900 (TDD/TTY: 711).

Where to get the MassHealth fax cover sheet

Search mass.gov for "Health Coverage Mail/Fax Cover Sheet" - MassHealth publishes it as a PDF and as a Word file. It has two pages:

1. Page 1 has the barcode, a line for the last four digits of the head of household's Social Security number (or their initials and date of birth), and the "where to send" table above.
2. Page 2 asks for the head of household's name, Social Security number, date of birth, MassHealth ID number and Reference ID number (if you have them), the sender's name and phone number, a facility name if one applies, and the number of pages including both cover sheets.

Two instructions printed on the sheet matter most:

• Don't photocopy the page with the barcode. MassHealth says the barcode only works on an original. Print or save a fresh copy each time instead of copying an old filled-in one.
• One cover sheet per household. Never send papers for two households under the same two-page sheet.

If you're faxing to a doctor's office or another business instead of MassHealth, you don't need this form - our fax cover sheet guide shows what a regular cover page should include.

How to fax MassHealth documents from your iPhone

You don't need a fax machine, a print shop or a landline. With HonestFax:

1. Install HonestFax and open the New Fax tab. No account and no email address.
2. Add the MassHealth cover sheet first. Fill in both pages on paper and scan them with the camera, or fill in the PDF on your phone and add it from Files. Skip the app's own cover page - MassHealth's two pages should be the first pages the processing center sees.
3. Add your documents after it - the signed renewal form, pay stubs, proof of address or whatever the letter asks for. Scan each page flat, in good light, so numbers and signatures stay readable - see how to scan documents for a fax. A PDF you already have can go in too: faxing a PDF from your iPhone.
4. Check the page count. Write the total, including both cover pages, on page 2 of the cover sheet. The app shows the same count before you send.
5. Choose United States and enter the fax number from your letter, or from the table above.
6. The price shows before you send - each page is 1 credit. If the line is busy, the app retries for about 30 minutes, and if the fax still fails, the credits come back automatically.
7. When it says Delivered, the MassHealth fax machine accepted every page. Keep that record with the date, time and page count.

The full walkthrough with screenshots is in how to send a fax from your iPhone.

Mistakes that slow a MassHealth fax down

• Sending verifications to the general number when the letter names another one. Use the number on the letter.
• Mixing households. Two families, two separate faxes, two cover sheets.
• Unreadable pages. A dark or tilted photo of a pay stub can't be processed. Rescan it before you send.
• Faxing to an enrollment center. MassHealth's renewal page lists walk-in MassHealth Enrollment Centers and says not to mail or fax applications to those locations.
• Expecting an instant answer. A delivered fax means the pages arrived, not that they were processed. The cover sheet asks you to allow time - if you need care and your benefits have ended, it gives the MassHealth Enrollment Center line, (888) 665-9993 (TTY: (888) 665-9997). More on proof in how to confirm a fax was received.

Frequently asked questions

What is the MassHealth fax number? For renewals, subsidized applications and most verification documents, it's (857) 323-8300, the Health Insurance Processing Center. Unsubsidized Health Connector papers go to (617) 887-8745, and senior and long-term-care applications (SACA-2) to (617) 887-8799. If your letter gives a different number, use the letter's.

Where can I get a MassHealth fax cover sheet? On mass.gov - search for "Health Coverage Mail/Fax Cover Sheet". It's a free two-page form from MassHealth, in PDF and Word.

Can I fax my MassHealth renewal? Yes. MassHealth's renewal page says to fax all pages of the renewal form to the Health Insurance Processing Center at (857) 323-8300. Members under 65 can also renew online, and MassHealth calls that the fastest way.

Do I need a cover sheet to fax MassHealth? MassHealth's cover sheet says to use it, plus the first page with the barcode, when you mail or fax documents to MassHealth or the Health Connector. It helps them match your pages to your household.

Can I fax MassHealth from my phone? Yes. A fax app sends the pages over a real fax line, so MassHealth receives a normal fax. With HonestFax you scan the cover sheet and documents with your iPhone camera and see the price before sending.

Is MassHealth the same as Medicaid? Yes - MassHealth is the Medicaid program in Massachusetts. For Medicare, the federal health program, the fax numbers are different: see our Medicare fax number guide.

Checked on November 11, 2026: mass.gov, "Health Coverage Mail/Fax Cover Sheet" (MassHealth, PDF and DOCX, last updated 2020-11-16: fax (857) 323-8300 Health Insurance Processing Center, P.O. Box 4405, Taunton, MA 02780 for subsidized applications, MassHealth renewals and verifications; fax (617) 887-8745 Massachusetts Health Connector, P.O. Box 4404, Taunton, MA 02780 for unsubsidized applications and Health Connector-only verifications; fax (617) 887-8799 Central Processing Unit, P.O. Box 290794, Charlestown, MA 02129 for SACA-2, Supplement A and Buy-In; barcode page must be an original; one two-page sheet per household; send verifications to the number on the letter; Customer Service (800) 841-2900; MEC (888) 665-9993, TTY (888) 665-9997). mass.gov, "Renew your MassHealth coverage" (fax all pages to (857) 323-8300; online renewal for members under 65; do not mail or fax applications to MassHealth Enrollment Centers; (800) 841-2900, TDD/TTY 711). mass.gov, "MassHealth" (MassHealth (Medicaid)). Numbers can change - check the source and your letter on the day you send. HonestFax retries and automatic refund as shown in the app.