Aaron S Leong, MD, MSC

Patient Feedback

4.915789 average rating from 114 reviews

• I feel Dr Leong has listen to me and respected my opinions in taking care of my health. He has always been willing to educate me about my symptoms. And I have learned a lot from him on how to take care of myself. I wish other doctors would do the same because if you educate your patient you will have a patient who can take care of themselves. It si a win win situation. Thank you Dr. Leong

  2026-06-30

• I love Dr Leong he is an amazing dr

  2026-07-01

• Dr. Leong, the endocrinologist is exceptional and I've seen many in ten states over an extensive period of time. This entire experience was strongly positive. Not sure what's different but in this visit every single staff person, from the reception desk to the phlebotemist and janitor were working well individually and together. It was also less crowded and that could have made the entire difference. MGB of course needs more MDs. Still, I've been coming here for years and this visit was among the very best.

  2026-07-01

• Dr. Leong has been a valuable addition to the clinic. He is available in emergency situations, and his patient meetings have been extremely helpful in managing a brittle diabetes. Personally, he is caring, empathetic, and a great listener. After 35 years as a patient served by the clinic, I am fortunate to have Dr. Leong's care.

  2026-06-30

• Fantastic person and extremely knowledgeable

  2026-06-25

• He is excellent! He is the endocronologist that helps me manage my diabetes. His expertise is very valuable to me because diabetes management can sometimes be complicated.

  2026-06-24

• Kind and very knowledgeable

  2026-06-14

• My experience was perfection. Every question I had was answered thoroughly and knowledgeably.

  2026-05-17

• Excellent.

  2026-05-11

• Dr. Leong is everything a patient could want in a physician: informed, skilled, caring, thorough and with a sense of humor.

  2026-05-11

• They provided expert care and advice during the visit

  2026-05-06

• Highly recommend Dr. Leong

  2026-05-04

• Dr. Leong is my favorite provider that I have. He always listens with care and attention and is the best doctor I've ever had. I feel very comfortable being open and honest with him and would recommend him to all of my friends or family. He's attentive, caring, and I love that he's always up to date with the newest technology and medications regarding diabetes management.

  2026-04-15

• Dr. Leong is an outstanding clinician. He is thorough, and looks at all relevant factors in his care.

  2026-04-15

• Very thorough, informative, helpful... a good experience

  2026-04-09

• Dr Leong is easy to talk to and ask questions. I had a bone density beforehand and he explained the details of the results and options for the next steps. He helped me to decide what option to pick. I have been seeing him for a while and I will always continue to see him for my care unless my insurance changes. My future about what headline i will have is always a stressor about which providers will be covered.

  2026-04-09

• I love Dr. Leong. He spends the time and has my record right up on the screen so we can discuss any issues we need to discuss. He talked me through a lot of treatment options and spent the time with me to work out all the different issues. He was also empathetic. The diagnosis was a surprise to me and it made me sad. He gave me space for that and was respectful that it's not what I wanted to hear. he also gave me good perspective and made me feel better--like it wasn't my fault. I really appreciated all his time.

  2026-04-06

• I'm very, very satisfied with my caretaker. I wholeheartedly think that he's 100% in my favor. He explained everything to me and he's just a marvelous doctor. Okay. I'm all set.

  2026-04-02

• Dr. Leong is, in my opinion, an extraordinary physician. His knowledge about my disease and his ability to convey the info I need to better take care of my condition is amazing. He listens, he explains, he works toward finding a solution to your problem. He's easy to talk to, and, as a patient, I think I'm in the best of hands. HE'S AWESOME!

  2026-03-30

• Dr Leong is very attentive, knowledgeable, courteous and helpful. He's sensitive to my needs, as I'm a senior.

  2026-03-29

• It always pleasure to use this office

  2026-03-25

• The Care Provider was very friendly and a pleasure to have as a care provider. The Doctor listened to my concerns, answered all of my questions and was very knowledgeable. I really liked her as a care provider as well as a friendly person.

  2026-03-25

• Dr Aaron Leung was thorough and reassuring. [redacted]

  2026-03-20

• Dr. Leong is great and he understands my health needs. He is happy that my bone density is stable and my bone strength is improved. I I look forward to seeing him again [redacted].

  2026-03-16

• Brilliant doctor

  2026-03-11

• He is knowledgeable, personable and tells you what to expect and what to report.

  2026-03-02

• One of the Best Clinicians at MGH. Very Professional , Objective ,Knowledgeable and Positive interaction with patient.

  2026-03-02

• Excellent provider; he came highly recommended and I've referred my husband to Dr. Leong.

  2026-02-26

• Awesome experience.

  2026-02-16

• Very quick response to questions and bloodwork

  2026-02-25

• fabulous!

  2026-02-05

• Dr Leong is very personable and makes a point to establish a good rapport with his patients and their families. He's very thorough and keeps excellent notes from previous visits and we feel very confident with his care. He's very responsive with results on lab values.

  2026-02-04

• I was transitioning to a new provider and was very pleased with how he treated me.

  2026-01-29

• Very satisfactory

  2026-01-28

• Dr Leong is wonderful, caring, knowledgeable and always explains things easily but without being condescending in any way!

  2026-01-26

• I was a day late for my Visit and the doctor made time to see me.

  2025-12-31

• Easy to understand. He listened attentively and gave good suggestions and advice

  2025-12-24

• Very, very impressed with the doctor. First time I had seen her. Initially wasn't even sure why I was there, but she and her supervisor explained specifically and I was very, very impressed with how thorough they were.

  2025-11-24

• Dr. Leong is top notch doctor at MGH!

  2025-11-17

• Dr. Leong was very thorough, explained things very well, and was fun to be with.

  2025-11-10

• He is very attentive and answered my questions.

  2025-11-05

• The provider is knowledgeable, patient, and caring. He provides good advice and treatment options to address my health concerns. He listens to my requests and takes appropriate actions to help me with my pain. I was very pleased.

  2025-10-29

• He is my favorite doctor. He's knowledgeable, kind, interested, thorough - the greatest.

  2025-10-27

• He is a great doctor

  2025-10-27

• Dr Leong is an outstanding MD. He reviews all aspects of my medical conditions. His office is also very supportive and pleasant to deal with. It is my favorite office to deal with.

  2025-10-27

• I've seen many endocrinologists in many regions of the country as a life-long T1 diabetic. Dr Leong is very thorough, highly knowledgeable with an active interest in proactively caring for patients. He listens carefully, offers a full and in-depth explanation of advice, recommendations and options. He followed up on rest results on the patient portal and his after-visit letter was very specific and detailed. He's outstanding.

  2025-10-21

• Hi, my name is [redacted]. I'm actually a physician at [redacted], and Dr. Leong is my endocrinologist. He's been taking care of me for a number of years. He's superb, he's kind, he's thoughtful, but more than anything, he's very bright, he listens very well, he's very patient, he's very clear when he answers, and he's really taken good care of me, given me many options, always prepared. I give him the highest markings. Thank you.

  2025-10-23

• Great

  2025-10-09

• New doctor for me A rated

  2025-10-08

• I'm happy!

  2025-09-29

• Very patient and compassionate and explained everything so i could understand

  2025-09-17

• 1st time meeting and I was very impressed by his knowledge, listening skills, chair side manner and really felt at ease. [redacted] I was more than pleasantly surprised and feel very comfortable going forward.

  2025-09-11

• The questions covered all the issues.

  2025-09-10

• He seemed very rushed and stressed. [redacted]

  2025-09-08

• Dr Leong is one of the best doctors I have ever had.

  2025-09-08

• He is very knowledgable, trustworthy and very helpful

  2025-09-05

• I am happy that I chose Dr. Leong as my endocrinologist. He took the time to explain the results of my bone density results and the treatment he considered best for me going forward. All of my questions were answered and I did not feel rushed. I highly recommend him.

  2025-09-03