Denise Ann-Marie John, MD, FRCSC

• Glaucoma Service

• Glaucoma
• Nail-Patella Syndrome (NPS)

Medical School or Training

Residency

Fellowships

Board Certifications

Visit our Physician Ratings & Comments page to learn more about how patient ratings are collected, calculated, and updated to help you make an informed decision when choosing the right physician for your care.

Patient Ratings

491 Patient Ratings

Patient Comments

June 27, 2026 - "Dr John is kind, knowledgeable and understanding"

June 24, 2026 - "Dr John was detailed and discussed possible alternatives for care as we moved forward. She explained my current test results and a comparison to previous results. Her detail to my care was greatly appreciated!"

June 13, 2026 - "Dr. John was very efficient in explaining the analysis of current status and recommended courses of action and follow-up."

May 12, 2026 - "I love Dr John. She's very knowledgeable and efficient. I would love it if she would smile and say hello like she was happy to be there. She's the only doctor I see with whom I have NO relationship. The minute she walks through the door there's a wall up between us"

May 10, 2026 - "Dr. John is an amazing practitioner. She is an expert and cares about her patients"

May 7, 2026 - "The doctor Is always rushing. Doesn't pay attention to my concerns about problems with my [...]. Dr John then decided to do surgery to solve the problem never addressed before. The same regarding [...]"

April 30, 2026 - "Dr. John has always been very good at explaining and working with me."

April 19, 2026 - "Dr. John has been an exemplary service provider for me for years. I am so grateful for the conscientious care she has provided. She takes the time to answer all of my questions and converse with me about future treatment options."

April 11, 2026 - "Dr. John, and [...], are very good, knowledgeable, and caring. I feel very confident that she will do the best for me that she can possibly do. She is a very nice doctor and very smart."

April 10, 2026 - "I'd recommend Dr. John always. [...]"

April 3, 2026 - "Dr John is always attentive and informative, fully engaged with my care."

November 22, 2025 - "Dr. John explains everything so you can understand and listens to any concerns."

November 22, 2025 - "Dr. John and [...] did an outstanding job [...]. During her visit she is detail and answer all questions with great recommendation."

November 15, 2025 - "I really like Dr. John. She is very knowledgeable and always answers my questions thoroughly!"

November 13, 2025 - "Dr. John is very professional and on-point."

October 20, 2025 - "Dr. John is great. I had [...] surgeries on my [...] and she has showed compassion with having to have surgeries one and two."

October 18, 2025 - "I knew from my first contact with Dr. John exactly what the process would be, i.e., what would happen, what to expect, what interventions in case there was something outside of what I was told. I was told what would happen next. I have known every step of the way as much as possible where I was in the process. And, in case I forgot I could find in MyUM portal, in text message."

September 27, 2025 - "Dr. John is always great. I had some questions, She listened and responded wit helpful answers. She always listens. She always responds thoughtfully. Honestly, I feel lucky to have her as my doctor."

September 20, 2025 - "I have already recommended her to someone else. Dr. John is the best doctor I have had in the last 25 years."

July 19, 2025 - "Dr. John is excellent and answers all questions. You do not feel rushed."

July 18, 2025 - "Dr John is always attentive, businesslike, and clear"

July 17, 2025 - "Dr. John is wonderful."

July 16, 2025 - "Dr John has been my aid and guide for years and goes well beyond very well!"

Show All Comments