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✈️ Yellow fever vaccine available now — limited September appointments before the doses expire. Ajax Harwood Clinic is a Designated Yellow Fever Vaccination Centre. Call 905-683-0690 to book
Ajax, Ontario · Durham Region

Family Medicine,
Thoughtfully
Delivered.

Comprehensive primary care, travel medicine, and integrated mental health support — rooted in continuity, clarity, and a genuine understanding of you and your family.

How Can We Help You Today
Start Here
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Existing Patients
I Need to See My Doctor
Request a same-day callback, follow-up, or routine visit. Tell us your concern and we'll prioritize and be in touch.
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New to the Clinic
Register as a New Patient
Apply to become a rostered patient at Ajax Harwood Clinic. We'll review your application and be in touch.
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Travelling Soon
Travel Vaccines & Consultation
Yellow fever certification, destination-specific vaccines, malaria prevention, and full travel documentation in one visit. Designated Yellow Fever Centre.
Book Travel Visit →
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Mental Health & Wellness
Group Sessions & Presence Care
NADA ear acupuncture groups, subtle sensation awareness, and presence-based approaches to stress, sleep, and anxiety.
Explore Sessions →
Learn About Your Health
Explore Health Topics

Our interactive body map walks you through two dozen common health topics in plain language — tap a spot on the map to find clear, physician-curated information about the conditions we see every day.

Open the Body Map →

Educational information only — not medical advice. If you need care, use Patient Access.

"We treat the person who happens to have the condition — not the condition that happens to have a person."

Ajax Harwood Clinic has been a continuous presence in the Ajax community for over three decades. We believe that good primary care is built on relationship, not just encounters — on knowing your history, your family, your concerns, and your goals.

Beyond standard family medicine, we offer integrated approaches to mental health, group-based experiential care, and comprehensive travel medicine — all under one roof, coordinated by physicians who know you.

What We Offer
Services at Ajax Harwood Clinic
Comprehensive Family Medicine
Ongoing primary care for all ages — check-ups, chronic disease management, acute concerns, and preventive screening.
Travel Medicine
Designated Yellow Fever Vaccination Centre. Vaccines, malaria prevention, travel documentation, and destination-specific guidance.
Mental Health Support
Clinical and experiential approaches to anxiety, stress, sleep, and emotional regulation — individually and in group formats.
Group Ear Acupuncture
NADA protocol group sessions in a shared, quiet environment. In-person in Ajax and online. No prior experience required.
Chronic Disease Management
Coordinated, ongoing care for diabetes, hypertension, respiratory conditions, and other long-term health needs.
Specialist Coordination
Referrals, follow-ups, and communication with specialists — all coordinated through your primary care home at AHC.
CGM Program
Continuous glucose monitoring with the FreeStyle Libre sensor, with physician-guided review of your readings — for patients managing diabetes or prediabetes.
Who You'll See
Our Physicians
Dr. Carlos Yu
Dr. Carlos Yu
BMath, MD, CCFP(EM), FCFP, CTH
Family, emergency & travel medicine. Group-based mental health. 35+ years of clinical experience.
Dr. Maria Yu
Dr. Maria Yu
BSc, MD, CCFP, FCFP, CTH
Family & travel medicine. Women's health. Medical education.
Dr. Ian Watson
Dr. Ian Watson
BSc, MSc, MD, CCFP, FCFP, CTH
Family & travel medicine. Medical education. Patient-centred care.
Dr. Vivian Lo
Dr. Vivian Lo
MD, CCFP, CTH
Family & travel medicine. Medical education, research, and mentorship.
Featured Program
Group Ear Acupuncture
& Presence Sessions

A quiet space to sit, reset, and reconnect. These sessions combine NADA ear acupuncture with group-based awareness practices in a shared, unhurried environment. No prior experience is needed.

Wednesday sessions at 4:00 PM — in person
Saturday sessions at 11:30 AM — in person
Online subtle sensation awareness — ongoing
No referral required to attend
Learn More & Register
Designated Yellow Fever Vaccination Centre
Yellow Fever — protection that lasts a lifetime

Planning a safari, the Amazon, or travel through Africa or South America — someday? Yellow fever vaccination is required for entry to many of these countries, and a single dose lasts a lifetime. The easiest time to get it is before you need it, while you're young and well. We're one of the few Designated Yellow Fever Vaccination Centres in Durham, and we provide the full travel-health consult alongside it.

Call 905-683-0690 or ask us at your next visit

The Ten Doorways In

Find the path that speaks to where you are right now.

Find Your Path → OHIP-covered · No waitlist