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Internist Clinics in St Catharines, Ontario
14 internist clinics in St Catharines, Ontario — compare availability and book online. Browse internist clinics serving St Catharines, Ontario. View locations on the map, see hours and services, and book appointments online with providers that accept new patients.
Internist Clinics in St. Catharines
14 internist clinics in St Catharines, Ontario — compare availability and book online. Browse internist clinics serving St Catharines, Ontario. View locations on the map, see hours and services, and book appointments online with providers that accept new patients.
Showing 1–10 of 1075
See A Doctor From Home
For applicable health concerns, book a phone or video visit online. Take me thereDermatologist; Family Doctor; Internist; Others + 1 more
Accepting new patients Books online
Courtice Location: 2727 Courtice Rd Unit B7, Courtice, ON
Family Doctor; Internist; Obstetrician & Gynecologist; Pediatrician + 2 more
Accepting new patients
75 Montpelier St, ON
Family Doctor; Internist; Urgent Care; Walk-in
Accepting new patients
905 Niagara Street, ON
Family Doctor; Internist; Urgent Care; Walk-in
Accepting new patients
6005 Erin Mills Parkway, ON
Family Doctor; Internist; Urgent Care; Walk-in
Accepting new patients
379 Bond St W Unit 500, ON
Internist; Nephrologist; Neurologist; Urgent Care + 1 more
Accepting new patients
250 Dundas St W, Suite 106, ON
Cardiologist; Dermatologist; Family Doctor; Internist + 10 more
Accepting new patients
3580 Thomas Street, #202, Mississauga, ON, ON
Walk-in; Cardiologist; Internist; Dermatologist + 6 more
Accepting new patients
345 Bloor St E, Unit A4, Toronto, ON
Walk-in; Psychiatrist; Resident Physician; Pediatrician + 2 more
Accepting new patients Books online
1601 Lakeshore Rd W, Mississauga, ON
Frequently asked
How do I find internist clinics in St Catharines, Ontario?
Use the map or the list on this page to browse internist clinics serving St Catharines, Ontario. Filter by walk-in availability, telehealth, or accepting new patients, then book online.
Do internist clinics in St Catharines, Ontario accept walk-ins?
Some do. Each clinic listing shows whether walk-in visits are available, current open hours, and whether the clinic is accepting new patients.
Can I book internist appointments online in St Catharines, Ontario?
Yes — clinics with a "Book online" badge accept online bookings through Cortico. Click any clinic in the list to see available appointment times.
Is "Internal Medicine Doctor" the same as internist clinics?
Yes. "Internal Medicine Doctor" and "Internist" bring up the same clinics on Cortico, so search either term to find internist clinics in St Catharines, Ontario.
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Other specialties in St. Catharines
Walk-in clinics35Family Doctor clinics31Urgent Care clinics21Psychiatrist clinics11Others clinics9Pediatrician clinics9Cardiologist clinics8Gynecologist clinics8Endocrinologist clinics6General Surgeon clinics6Neurologist clinics6Emergency Medical Services clinics5Radiologist clinics5Resident Physician clinics5Anesthesiologist clinics4Dermatologist clinics4Hematologist clinics4Infectious Disease Doctor clinics4Physiatrist clinics4Allergist clinics3
Internist clinics in other Ontario cities
Toronto200Ottawa80Mississauga51London41Brampton40Hamilton39Kingston34Old Toronto33Windsor29Richmond Hill27Vaughan24Scarborough23
See all internist cities in Ontario → © 2026 Cortico Health Technologies. All rights reserved.
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