PHYSICIAN PORTAL
Secure online access to diagnostic imaging reports and images for referring physicians and technologists at GNMI.
How to Log In
- 1Select the login button for your portal below. It opens in a new tab.
- 2Sign in with the username and password issued to you by GNMI.
Don’t have a username and password yet? Request access below.
Synapse

Use Synapse for
Mississauga
MRI, CT, X-Ray & Ultrasound
Exams on or after September 15, 2026
Ajax
MRI & CT
Exams on or after September 15, 2026
464 Welland St. Catharines
MRI & CT
New to the portal? Request access below.
Merge PACS

Use Merge PACS for
Mississauga
MRI, CT, X-Ray & Ultrasound
Exams before September 15, 2026
Ajax
MRI & CT
Exams before September 15, 2026
New to the portal? Request access below.
Simms

Use Simms for X-Ray & Ultrasound in
Niagara Falls, St. Catharines, Welland, Hamilton, Grimsby, Stratford, Oshawa, Whitby
New to the portal? Request access below.
Portal Request Form
Complete the form below to request secure access to our physician portal
