Fax numbers are changing to a new centralized fax system for Remittance Advice Inquiries, Supporting Documentation and Prior Approval Requests

To: All Health Care Professionals
Category: (All provider categories)
Written by: Claims Services Branch, Ontario Health Insurance Plan Division
Date issued: September 3, 2021

Changes to fax submission numbers

On December 31, 2021, the OHIP Claims Processing offices are moving to a centralized fax system. If you are in the process of moving to eSubmit, but need to continue submitting documents by fax, please be advised that the new centralized number for Remittance Advice Inquiries (RAIs) & Supporting Documentation (manual review) will be 905-434-4186 only.

Prior Approval Request Forms for Surgical, Dental and Sleep Studies should be faxed to 905-434-3712 only.

The new fax numbers are active and available for use immediately. All other fax numbers will be de-activated effective December 31, 2021.

Consider a better alternative to fax

If you have access to Medical Claims Electronic Data Transfer (MCEDT) you already have access and the ability to use eSubmit. eSubmit is a fast, secure, and reliable way to send your RAIs and Supporting Documentation (manual review) to the ministry.
eSubmit gives you the benefit of:

  • Safe and secure transmission of Personal Health Information (PHI)
  • Faster response time
  • RAI responses are sent directly to your MCEDT mailbox
  • Requests for additional information are sent directly to your MCEDT mailbox and will detail the specific information required to process your submission
  • Instant data validation, avoiding needless keying errors
  • No delays from returns by fax or mail
  • Electronic receipt confirmation and ticket number on all submissions
  • Easy submission tracking
  • 24/7 availability of the eSubmit service (except for weekly scheduled system maintenance - Sunday mornings 1am to 5am and Wednesday mornings 5am to 8am)

If you would like to learn more about eSubmit, please contact our Service Support Contact Centre by email or telephone 1-800-262-6524 or see our website for more information at OHIP – eSubmit – Publications – Health Care Professionals – MOH (gov.on.ca)


Change; Fax; Claims Submission; Remittance Advice Inquiry; Supporting Documentation; Medical Claims Electronic Data Transfer; MCEDT; eSubmit; Centralized Fax System;

Contact information

Do you have questions about this INFOBulletin? Email the Service Support Contact Centre or call 1-800-262-6524.

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