Ratings for Dr. Jason Lee

4.3

102 reviews
4.0Staff
4.5Punctuality
4.4Helpfulness
4.5Knowledge
Learn moreLearn about our ratings
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18%
4%
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Rating IconTell us about your experience with Dr. Jason Lee
Posted on February 23, 2018
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Excellent staff and amazing doctor will not hesitate to go again.

Posted on February 7, 2018
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Best Doctor ever..If there is a time I need again I would not hesatate.

Posted on February 1, 2018
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Best allergist ever. EVER. I've seen so many over my lifetime, and never have I met one more informed or dedicated to my wellbeing.

Posted on January 30, 2018
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I saw Dr Lee years ago and then he seemed interested and helfpul. However, I saw him more recently and found that he did not take the time to understand my situation. Also he jumped to conclusions about the cause of some medical conditions not related to allergies, ie he did not do any tests, no diagnosis. The cause he indicated was not even on a list of about 20 possible causes listed on medical sites like webmd. When I told him that I would not do well (based on past experience) on a medication he wanted to prescribe, he said to take it anyway and see him in a few months. Moreover, his reception often does not return calls, or if they do, they do not leave a message, so if you dont check the log of your phone you have no idea they called.

Posted on November 16, 2017
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I so happy with Jason Lee. He save my life from nose cancer taking look with flashlights first I wonder why my doctor send me to him but he say trust him he's a very good doctor. Holy smoke man, I still can't believe it he find the cancer in my nose. Thanks god.

Posted on November 4, 2017
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I've seen Dr. Lee for 6 yrs now for asthma. he's changed my life night and day.

Posted on November 2, 2017
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I've seen Dr. Lee twice now. Oddly enough I had come in for an allergy test due to pretty terrible seasonal allergies, and since the test developed a sensitivity to dogs, and was recently re-diagnosed with being allergic to dogs. Given the strange occurrence, I found Dr. Lee very helpful providing me with all my options, and not pushing allergy shots instantaneously (which ultimately benefits him/the clinic). Dr. Lee provided me with concise answers, and shows his breadth of knowledge.

Posted on August 5, 2017
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I would never recommend this Allergist, all he did was prescribe puffers. For 1 year did not do that as my allergist act on my respiratory system puffers won't work my allergies are that bad, asked him about allergy shots and he said no let's see with this first. The corticosteroids should not be taken for that long as there side effects would be terrible. I am young this would lead to many other health issue. I had my allergies since I was 6 Dr. Chui who was my allergies retired but she kept them under control unfortunately she retired. He didn't even look at my arm said I have lots of allergies guess what Doc I could told you that. Wasn't even bothered to listen to me. Except that I work in healthcare and am a biotechnoligist. Change to a knew allergist and he is great did even have to say anything about allergy shots he did the tests and said I suggest allergy shots puffs won't help you. Exactly what I told Dr. Jason Lee. If there was a minus rating for knowledge & helpfulness he would get it. Also he referred me to do some pulmonary tests with a specialist in his building, that I just did with an excellent specialist same type as the one he referred me to, that specialist gave me his report to give to him, my family Doctor sent me too. Why put someone to do duplicate tests, absolutely ridiculous. Whoever gave him excellent reviews must be family members.

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Dr. Jason Lee's response

Thank you for the review. As I clearly indicated to you in person: It is NOT considered safe to administer allergen immunotherapy if your asthma is not controlled. As such it is the best optimal care to first control your asthma prior to initiating allergen immunotherapy as allergen immunotherapy carries a risk of anaphylaxis up to 1:1000. The single biggest risk factor for adverse outcomes is in fact uncontrolled asthma. Allergies is in fact considered one of the biggest drivers of asthma and as such the decision is made in your best interest to use inhaled steroids first to get things under control. I do acknowledge that you are unhappy that I did not agree with your belief of what you needed but please understand that I often disagree with patient requests when I feel that it is not in your best interest. This does not mean that I am trivializing your desires or superseding your wishes but that I am actually following best possible evidence based guidelines on how best to manage your conditions/symptoms. Sometimes safety concerns have to be considered irrespective of what you personally may think is the right course of action. Having said this I am delighted you found another physician that you have a better rapport with and hope you get the care you need that is also safe.

Posted on June 6, 2017
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I have no idea how this doctor would get any negative reviews. I was in disbelief at the negative comments below. Maybe he had an off day or there was something wrong with the reviewer. I am extremely happy with Dr Lee and his nurse Vito is also great. I was finally offered a real solution to my terrible asthma and skin issues and am thrilled with the results!

Posted on June 6, 2017
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Dr. Jason K Lee diagnose treated my issue other doctors were not able to identify. Besides being extremely knowledgeable he's very thorough and listens to his patients. I wish every doctors were like him. Too sad there isn't a sixth star to rate him.

Rate this DoctorDr. Jason Lee's Credentials

Facility Affiliations


Accepting New Patients

Yes, this doctor is accepting new patients


Accepting Virtual Visits

Yes, this doctor is accepting virtual visits. Please contact this doctor for more info.


Biography

Undergraduate - University of Toronto Undergraduate MD - University of Toronto 2005 Postgraduate Residency - University of British Columbia - Internal Medicine FRCPC Postgraduate Fellowship - University of Toronto - Clinical Immunology and Allergy FRCPC


Languages

  • Korean
  • English

Education

  • University of Toronto (Grad. 2005)

Other Specialties


Areas of Expertise

  • Chronic hives (urticaria)
  • Asthma
  • Allergies
  • Chronic sinusitis

Awards & Recognitions

  • Health Digest award for outstanding contribution
  • AAISO resident research award 2009
  • CSACI resident research competition 2009
  • Chaim Roifman Young Investigator the year award 2014

Publications & Research

Unavailable


Insurance accepted by this Doctor

Other patients have successfully used these insurance providers. Please call the Doctor's office to find out if your insurance plan is accepted
OHIP
About this listing
Update IconLast updated: Jun 9, 2026
Plus IconLast rating added: Jun 9, 2026