How to Update Your Medicare Card After Divorce in New Brunswick

Failing to update your New Brunswick Medicare registration after divorce can result in the termination of your health coverage. The province requires you to report any change in name, address, or marital status — and divorce triggers all three for many people.

The process is free, but the documentation requirements are specific, especially when dependent children are involved.

Updating Your Name and Marital Status

Submit the New Brunswick Medicare Updates and Changes Form to the Medicare Branch of Service New Brunswick. The form covers name changes, address updates, and marital status changes in one submission.

For name changes:

• If you were born in New Brunswick and are restoring your birth name, indicate this on the form and write your name exactly as it appears on your original birth record. No additional documentation is needed.
• If you were born outside New Brunswick, attach a copy of your birth certificate showing your birth name.
• If you've completed a formal legal name change under the Change of Name Act, attach a copy of your Legal Name Change Certificate.

For marital status:

Select "Divorced/Separated" under Section 5.2 of the form. You'll need to provide your ex-spouse's name, date of birth, and Medicare number (if known) so the province can separate your household files.

Fee: No charge for updating name, address, or marital status. Replacement cards due to loss, theft, or damage cost $10.

Children and Custody Documentation

This is where the process gets complicated. When parents divorce, Medicare needs to know which parent's household each child belongs to for benefits administration.

Children under 16: You must provide a copy of your formal custody or guardianship order, along with documentation confirming which parent the children reside with. Without this, Medicare may not transfer the children's registration to your household file.

Youth aged 16 to 19: A signed letter from both the parent and the child confirming the living arrangement is required. The letter must specify which parent the youth lives with.

If you have shared custody, the custodial arrangements specified in your separation agreement or court order determine which parent's Medicare registration the child falls under. Medicare follows the legal custody documentation — verbal arrangements or informal agreements aren't sufficient.

Removing Your Ex-Spouse

When you update your marital status on the Medicare form, the province separates your household file from your ex-spouse's. Your ex needs to submit their own separate update form.

If your ex-spouse was listed as a dependent on your Medicare registration (less common, but possible in some circumstances), you need to explicitly remove them. This happens automatically when you select "Divorced/Separated" and provide the required information.

Why This Matters

New Brunswick Medicare is the province's universal health insurance program. If your registration information doesn't match your current legal status, several things can go wrong:

• Correspondence goes to the wrong address — renewal notices, coverage confirmations, and benefit statements may be sent to your old shared address
• Dependent children may not be covered under your household — especially if you've moved and the children's registration still shows your ex-spouse's address
• Benefits calculations may be inaccurate — provincial health benefits that are income-tested could be calculated on the wrong household composition

Timeline

Update your Medicare card as soon as you have your Certificate of Divorce and any name change documentation. There's no filing deadline, but delays create administrative complications — especially if you need medical care and your ID doesn't match your Medicare registration.

The Medicare update is one step in a longer sequence. Coordinate it with your driver's licence update (which you'll handle at the same Service New Brunswick visit) and your CRA notification (Form RC65), since all three agencies need consistent information about your name and marital status.

The New Brunswick After-Divorce Checklist puts the Medicare update in its proper place in the post-divorce timeline, alongside every other ID and registration change you need to make.

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