The main phone number for Massachusetts workers’ compensation is (617) 727-4900, which reaches the Department of Industrial Accidents (DIA) headquarters in Boston. All five DIA offices across the Commonwealth are open Monday through Friday, 8:30 AM to 5:00 PM.1Mass.gov. Department of Industrial Accidents For most questions, calling the regional office nearest you or your workplace will get you to someone who can pull up your file directly.
DIA Regional Office Numbers
The DIA runs five offices, and each handles claims processing, scheduling, and hearings for its area. Call the one closest to where your injury happened or where you live, because that office usually holds your file.1Mass.gov. Department of Industrial Accidents
- Boston (main office): (617) 727-4900
- Springfield: (413) 784-1133
- Worcester: (508) 753-2072
- Lawrence: (978) 683-6420
- Fall River: (508) 676-3406
All five keep the same weekday hours of 8:30 AM to 5:00 PM. There is no listed weekend or evening coverage.
Specialized Numbers for Specific Questions
Looking Up a Case or Board Number
If you need a status update or you’ve lost track of your DIA Board Number, the Public Information Office is usually the fastest route. Call (857) 321-7470 or email Info2@mass.gov.2Mass.gov. How Do I Find the DIA Board Number Staff there can search for your Board Number using your name, employer, and date of injury.
Help If You Don’t Have a Lawyer
The DIA’s Office of the Ombudsman helps injured workers who are handling claims on their own. If you have questions about paperwork, what a notice means, or what happens at a conciliation, call the main Boston number at (617) 727-4900 and ask to be connected to the ombudsman.
Vocational Rehabilitation
If your injury means you can’t go back to your old job, the Office of Education and Vocational Rehabilitation (OEVR) coordinates retraining services aimed at helping you earn close to your pre-injury wages again. The director’s office is reachable at (857) 321-7401.3Mass.gov. Office of Education and Vocational Rehabilitation
What to Have Ready Before You Dial
A few pieces of information will shorten your call and prevent a callback. DIA representatives need these to locate your file:2Mass.gov. How Do I Find the DIA Board Number
- Your DIA Board Number, which appears on every notice the DIA has sent you. This is the single best identifier.
- The exact date of injury, not an approximation. This matters most when no Board Number has been assigned yet.
- Your employer’s legal name as it appears on your paystubs, not an informal or parent-company name.
- The last four digits of your Social Security number. The DIA specifically warns against providing your full SSN; only the last four are needed to verify identity.
If your call is about medical treatment or a dispute over care, keep your doctor’s name, treatment dates, and relevant medical reports within reach. You won’t need to read documents aloud, but being able to reference specific dates helps the representative figure out where things stand.
Skip the Phone: Online Options
Many routine tasks don’t require a call at all. Through the DIA’s online portal you can log in to your account, submit forms, check whether an employer carries workers’ compensation insurance, file an Employer’s First Report of Injury (Form 101), appeal a first report violation notice, and opt into email notifications in place of paper mail.4Mass.gov. DIA Online Services and Payments You’ll need to apply for an online account the first time. If you prefer handling things digitally, this eliminates hold time for form submissions and insurance verification.
What to Expect When You Call
Every DIA office answers with an automated menu. Listen for the option that matches your need: claims processing, public information, or scheduling. Once you reach a live representative, they’ll verify your identity and pull up your file.
Simple status checks are usually resolved on the spot. More involved requests, like rescheduling a hearing or clarifying how a benefit was calculated, may require a callback or a written follow-up. Make a note of the representative’s name and the date you spoke, so you can reference the conversation later if needed.
One Thing a Phone Call Won’t Do
Calling the DIA does not pause or extend any deadline tied to your claim. You must still report an injury to your employer as soon as practicable,5General Court of Massachusetts. Massachusetts General Laws Chapter 152 – Section 41 and formal claims and denial appeals have a four-year window that keeps running regardless of how many times you’ve phoned for information.6Mass.gov. Statute of Limitations If you’re close to a deadline, ask the representative directly which form you need to file and where to send it, and get that in the mail or submitted through the portal the same day.