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.

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Existing Patients
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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
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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.
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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.
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"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.
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
Location
88 Harwood Avenue South
Ajax, Ontario  L1S 2H6
Get Directions →
Contact
905-683-0690
Fax: 905-683-1431
ajaxharwoodclinic@gmail.com
After Hours & Unwell
Patient Access Portal
If you are unwell outside clinic hours, submit through our Patient Access portal — urgent requests are reviewed promptly.
Life-threatening emergency: call 911.