A letter arrives from the board with a date, an address and the name of a doctor you have never met. It reads like something you are in trouble for.
A WSIB medical assessment is an examination arranged by the board so it can obtain an independent medical opinion about your claim. The assessor does not treat you and does not become your doctor. You keep the right to choose your own treating provider, and attending this appointment does not change that.
Understanding that this is evidence gathering rather than treatment is most of what you need before you walk in.
What is a WSIB medical assessment?
Letters call it different things. Some say specialist referral, some say board arranged examination. In a motor vehicle claim the same appointment is usually called an independent medical examination. The wording changes and the structure does not. One appointment, no treatment, a written report.
The assessor is most often a physician. Depending on the question it can be a psychologist, an occupational therapist, a physiotherapist or a chiropractor. They are asked for an opinion on some combination of diagnosis, whether the condition is work related, whether your current treatment is reasonable, what you can safely do at work and how much permanent impairment remains.
How is a WSIB medical assessment different from seeing your own doctor?
Your own doctor is trying to make you better. The assessor is answering a question for a third party.
Your doctor builds a picture over months. The assessor sees one hour of one day and writes from it. Your doctor's notes guide treatment. The assessor's report supports a decision about your benefits.
This appointment does not replace your treating provider and does not transfer your care. You choose who treats you. The assessor will not prescribe for you, will not refer you onward and in most cases you will never see them again.
For the motor vehicle version of this appointment, what happens at an independent medical examination covers it in detail.
Do you have to attend a WSIB medical assessment?
In practical terms yes, because a compensation claim carries a duty to cooperate. Not attending, and not explaining why, can lead to benefits being reduced or suspended.
You are not trapped by a date somebody picked without asking you. A badly timed appointment has an answer, and the answer is never a no-show.
If the date does not work, if the location is unreasonably far, if you need an interpreter or accessibility accommodation or if you cannot arrange care that day, ask in writing for the appointment to be moved. Ask as early as you can. Phone if you want, then follow with an email or letter so the request exists somewhere other than your memory.
A documented request that was refused reads completely differently from an absence nobody can explain.
What happens at a WSIB medical assessment?
Check in and identification. You are usually asked for photo identification. Arrive fifteen to twenty minutes early. Lateness gets noted.
Paperwork in the waiting room. Often several pages about your symptoms, your daily activities, your work and your treatment so far. This form becomes part of the report, so answer it as carefully as you would answer the assessor out loud. If a box is too small for the true answer, say so rather than compressing it.
The history interview. You describe the injury, the work you were doing, what has happened since and what you can manage now. This is usually the longest part.
The physical examination. Range of motion, strength, reflexes, palpation of the injured area and sometimes functional tasks such as walking, bending, gripping or lifting. A psychological assessment replaces this with structured interview and written testing.
The end. The assessor will not usually tell you what they concluded. That silence is normal and is not a bad sign.
How long does a WSIB medical assessment take?
A single body area usually runs 30 to 60 minutes. Several body areas, or a question about permanent impairment, can run 90 minutes to two hours. A psychological assessment often runs half a day because of the written testing.
Add 20 to 30 minutes for waiting room paperwork and expect to be seen after your appointment time.
What are you allowed to say and decline at a WSIB medical assessment?
More than most people believe.
You can ask for a break. You can say that a movement hurts while you are doing it rather than afterwards. You can decline a movement you believe will injure you further, and it lands better if you explain why rather than refusing flatly. You can say you do not know.
You can bring someone to the building and the waiting room. Whether they sit in the examination itself varies, so ask in writing beforehand rather than negotiating at the desk. If you need an interpreter, request one formally rather than bringing a relative, because an informal interpreter can later become a reason to question the record.
The most damaging habit in the room is not exaggeration. It is politeness. Answering "not too bad" to a question about your worst symptom is the kind of sentence that reappears in a report months later. Describe the week rather than the moment and say plainly whether today is better or worse than usual.
Who gets the WSIB medical assessment report?
The report goes to whoever arranged the assessment, which is the board. It becomes part of your claim file and is used to decide entitlement, treatment funding and your return to work.
You can ask for a copy of your claim file, and reading the report is the only way to know what was written about you. Ask in writing and keep the date of the request.
Decisions built on that report carry objection deadlines, and they are short. Some are 30 days and some are six months. The Ontario WSIB claim deadlines page sets out which is which, along with the 21 day window to object to medical information in your file being released to your employer.
If the report is wrong, you are not stuck with it. You can respond in writing, you can ask your treating providers to comment on it and you can object to the decision that relied on it. All of that depends on knowing what you said and did on the day.
What should you record after a WSIB medical assessment?
Write it down the same day, in the car park if you can, before the details blur.
- The date, the time you arrived, the time you were seen and the time you left
- The assessor's name and profession
- How long the interview lasted and how long the physical examination lasted
- What you were asked and how you answered, especially anything you feel was misunderstood
- Which movements or tests you were asked to perform and which ones caused pain
- Anything unusual, such as a companion being refused, a break being declined or a test you could not complete
- The date you asked for a copy of the report and who you asked
A note written the same day is worth more than a memory reconstructed months later against a document that sounds official.
The Medical Appointment Tracker, Free Starter Edition gives you a structured page for exactly this. The National Workplace Injury Recovery Guide holds the day to day record a claim is eventually judged on, and the Ontario Workplace Injury Companion Guide carries the deadlines, forms and objection routes behind it.
Read next
- What happens at a functional abilities evaluation
- What happens at an independent medical examination
- How much does WSIB pay while you are off work
Last verified August 2026. This article is general information for people in Canada and is not medical or legal advice.