Plastic & Reconstructive Surgeon
Dr. Katie Armstrong, MD, MSc, FRCSC
Royal College–certified plastic and reconstructive surgeon, practising in Mississauga and serving Toronto and the Greater Toronto Area.
Dr. Katie Armstrong is a plastic and reconstructive surgeon certified by the Royal College of Physicians and Surgeons of Canada (MD, MSc, FRCSC), registered with the College of Physicians and Surgeons of Ontario under CPSO #95685. She completed her medical degree and her plastic and reconstructive surgery residency at the University of Toronto, alongside an MSc in Health Services Research.
She practises in Mississauga and sees patients from across Toronto and the Greater Toronto Area, performing facial, breast, body and gender-affirming surgery, and holds active surgical privileges at Women’s College Hospital, Toronto. The Self Institute is the name she gives her approach to that work.
Our story
Care built around the person
The Self Institute is the name Dr. Katie Armstrong gives her philosophy of care — a simple belief that surgery should be designed around you: your goals, your body, and your life. It guides how she practises, combining advanced surgical expertise with a genuinely personal approach.
From aesthetic and breast surgery to gender-affirming care, every procedure begins with listening — understanding who you are and what matters most to you.
Her approach
Precision and genuine compassion
Dr. Katie Armstrong brings reconstructive precision and a respectful, attentive manner to every consultation. She takes the time to answer questions, set realistic expectations, and ensure you feel informed and supported at each step.
A nationally recognized surgeon, researcher and educator, she is committed to the evidence-based advancement of surgical care.
What guides us
Our values
Personalized Care
Every plan begins by listening — your goals shape the path, never the other way around.
Safety & Excellence
Accredited facilities, rigorous standards, and a surgeon’s precision at every step.
Compassion
Care delivered with dignity, patience and genuine respect for who you are.
Lasting Results
Natural, durable outcomes designed to look and feel like you — for years to come.
Credentials
Training you can trust
Dr. Katie Armstrong is a Royal College–certified plastic and reconstructive surgeon with active hospital affiliations in Toronto. Read more about choosing a plastic surgeon in Toronto, or see the facility where your surgery takes place.
- Royal College certified plastic, reconstructive & aesthetic surgeon (FRCSC)
- MD, University of Toronto — plastic & reconstructive surgery residency
- MSc in Health Services Research, University of Toronto
- BSc, McMaster University
- Active surgical privileges, Women’s College Hospital, Toronto
- Award-winning, peer-reviewed research (CMAJ, JAMA Surgery)
Qualifications
Professional background
Education & training
- Doctor of Medicine (MD), University of Toronto
- Plastic & Reconstructive Surgery residency, University of Toronto
- MSc in Health Services Research, University of Toronto
- BSc, McMaster University
Certification & licensure
- Fellow, Royal College of Physicians and Surgeons of Canada (FRCSC)
- Certified in Plastic & Reconstructive Surgery — 21 May 2019
- College of Physicians and Surgeons of Ontario — CPSO #95685
Hospital & facility affiliations
- Active surgical privileges, Women’s College Hospital, Toronto
- GraceMed Mississauga x McLean — consultations and surgery
Professional memberships
- Canadian Society of Plastic Surgeons
- Royal College of Physicians and Surgeons of Canada
Academic & research
- Peer-reviewed research published in CMAJ and JAMA Surgery
- Recipient, Mentor Best Clinical Paper
- Recipient, Outstanding Paper award
Areas of focus
What she performs
Dr. Katie Armstrong’s practice spans three areas. Each links to the full list of procedures she offers within it.
Practice philosophy
How she approaches the work
The Self Institute is the name Dr. Katie Armstrong gives her approach to surgical care — the person before the procedure, and care that continues past the operating room. It is set out in full on the practice philosophy page.
Training & affiliations
Royal College of Physicians & Surgeons of Canada
University of Toronto · Faculty of Medicine
Women’s College Hospital, Toronto
Canadian Society of Plastic Surgeons
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Years of experience
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Procedures performed
FRCSC
Board certified
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Personalized care
Your consultation
Ready to take the
first step?
Book a private consultation with Dr. Katie Armstrong. We'll take the time to understand your goals and answer every question.