Contact
Locations
Highland Professional Office Building
990 South Avenue, Suite 207
Rochester, NY 14620
About Me
Faculty Appointments
Clinical Assistant Professor (Voluntary) - Department of Medicine, Highland Hospital (SMD)
Credentials
Residency & Fellowship
Residency, Internal Medicine, Highland Hospital of Rochester. 1988 - 1990
Internship, Internal Medicine, Highland Hospital of Rochester. 1987 - 1988
Education
MD | SUNY at Buffalo-School of Medicine & Biomedical Sciences (USA). 1987
Ratings & Comments
At URMC, we believe that patients should be empowered to make the right decisions regarding their personal healthcare. To do so, transparency is critical. URMC partners with Press Ganey, to survey our patients about all aspects of their care experience. We are now putting this pertinent information at your fingertips by displaying star ratings for our providers along with anonymous patient comments on our website. This will help you make better-informed choices about how and with whom you seek care. Click here to learn more about the surveys used to generate this vital information. Learn more about our survey process.
Ratings
Care provider's discussion of any proposed treatment (options, risks, benefits, etc.)
Likelihood of recommending this care provider to others
Explanations the care provider gave you about your problem or condition
Care provider's efforts to include you in decisions about your care
Concern the care provider showed for your questions or worries
Patient Comments
My visit with my primary care doctor was very good I am very please with her care
Jan 24, 2025
Dr. Gleeson is awesome! Very caring, thorough, explains things very well. Suggests more than one possible treatment when possible-gives her honest opinion .
Jan 17, 2025
Dr. Gleeson is the best provider I've ever come in contact with.
Jan 13, 2025
Dr Gleeson is a skilled practitioner but her "bedside manner" is chilly.
Dec 25, 2024
Dr. Gleeson is one of the best doctors I have had. Have only seen her 3 times but I am totally comfortable with her and she definitely listens and does not make small my complaint. I came to her because I was not comfortable with doctor right before her but she is a gem
Dec 08, 2024
Dr. Gleeson always takes the time to listen and explain everything...she's the best!!
Nov 27, 2024
Dr. Gleeson very thorough and responsive to my concerns. I have recommended her to many.
Nov 23, 2024
Dr. Gleeson is always excellent,informative and knowledgeable as well as caring and empathetic.
Nov 13, 2024
Dr. Gleeson is a phenomenal provider. Her level of PT care is unmatched by any other doctor I have ever seen. Nothing but a positive experience with every visit. She is the best.
Nov 11, 2024
Dr. Gleeson is always exceptional. She listens provides input and addresses all concerns. She also follows up immediately with any test results or concerns, exceptional doctor.
Oct 04, 2024
I've had some funky blood work and Dr. Gleeson suggested a consult with a hematologist. She reached out to him to better understand what the results meant. She called me at 6:30 PM with the results of his analysis and what it meant in layman's terms. I was very grateful for her time and concern for this issue, and very reassured as to the prognosis.
Oct 02, 2024
My care provider always provide me with feedbacks and concerns about health issures.
Oct 01, 2024
I have never had a bad experience at this office
Oct 01, 2024
Dr. Gleeson is a very pleasant, caring and friendly doctor. This means a lot to me because I am not comfortable with doctors and she makes me feel relaxed. I was with another doctor until a few months ago who was not pleasant and I could not get comfortable with her. So glad I made the change
Sep 28, 2024
Dr. Gleeson for almost 30 years and couldn't ask for anyone better. She is genuinely concerned and talks through every concern I present with. She's caring, understanding as are her nurses and staff.
Sep 27, 2024
Always a good experience. Able to discuss and decide on any changes needed.
Sep 26, 2024
Dr Gleeson is the very best primary care doctor. She listens, remembers, and provides great medical advice. I travel many miles to see her and always will.
Sep 23, 2024
Dr. Gleeson is so helpful and car. She always takes time with you.
Sep 07, 2024
Always a positive experience with Dr. Gleeson
Aug 25, 2024
Dr. Gleeson is the best! I love her!
Aug 17, 2024
Dr Gleeson is an asset to your hospital
Aug 07, 2024
Dr. Gleeson always takes the time to go over all my questions and concerns as well as any concerns she may have about my health.
Jul 30, 2024
Dr. Gleeson is an excellent physician-very concerned and well- informed
Jul 15, 2024
The doctor has always taken time, explains everything, checks on concerns and keeps track of my health charts.
Jul 15, 2024
Dr. Gleason is one of the most outstanding, empathetic, engaging Dr I have ever had. Her thorough ,explicite explanations garner my trust in her. Always I feel affirmed as a person, as a black man, and as a gay person.this is what I call holistic medical care. The result is that my physical health is optimized because if her approach to medical care.
Jul 13, 2024
Dr. Gleeson is very knowledgeable and so helpful.
Jul 07, 2024
Dr. Gleeson is awesome. I should have switched to her years ago.
Jun 23, 2024
Dr. Gleeson is an outstanding professional. Displays intelligence, knowledge and caring but is not afraid to offer support and guidance.
Jun 06, 2024
Best experience I've ever had with a PCP
May 27, 2024
There is not a single bad thing that could be said about Dr. Gleeson. She is the best provider out there. She provides exceptional patient care that goes above and beyond.
May 05, 2024
This was my first visit with Dr. Gleeson. I am feeling very confident in her and pleased to be her new patient!
May 04, 2024
Dr. Gleeson came fully prepared with details of my chart, tests, previous visits as well as observations and Inquiries about all of those items.
May 04, 2024
Dr. Gleeson was fantastic, perfect. Best doctor visit I have ever had. I feel lucky to have her as my doctor. Extremely nice, explained things very well, knew my medical history thoroughly although this was my first visit. I have already recommended her to family.
Apr 26, 2024
Dr Gleeson is an exceptionally attentive, informed, and kind physician. I am lucky to be in her care.
Apr 19, 2024
Dr. Gleeson is an outstanding physician to me. She educates me, inspires me to live a life of good health and well-being. She shows the kind of deep knowledge, support and understanding that so far exceeds standards that I attribute to her the quality of life that I have and maintain. As a cancer patient at WCC, I always make an appointment with Dr. Gleeson after a session there because I can count on her to explain and clarify the details of my cancer-related matters is a manner that is not offered to me at WCC. No matter what concern I have, cancer or otherwise, I find that I leave my appointment with lifted spirits, insights and the certain knowledge that under Dr. Gleeson's care I can thrive. The quality of my life is greatly enhanced by her care. What a gifted physician!
Mar 30, 2024
Dr. Gleeson is an excellent physician, and I both value and appreciate her care.
Mar 28, 2024
This was my first appointment with Dr. Gleeson as my former PCP, Charis Lee, MD left [...]. Dr. Gleeson spent a substantial amount of time getting to know my medical history and me as a new patient. I was very impressed that she was so thorough.
Mar 25, 2024
I wish there was an "excellent" box to check here!
Mar 21, 2024
Dr. Gleeson goes above and beyond n her treatments of me as does her staff.
Mar 16, 2024
Always explains everything, with pictures if need be, & follows-up immediately.
Feb 23, 2024
The best PCP I have ever had!!
Feb 21, 2024
I couldn't be more please with Dr. Gleeson and her staff
Feb 19, 2024
Dr. Gleeson is through, listens very well and provides information and medical advice, based on current research. She is an very empathetic and caring doctor who follows through. She should be mentoring younger physicians.
Feb 15, 2024
Dr. Gleeson is the most thorough, knowledgeable and respectful dr. I've ever been to.
Feb 01, 2024
Dr. Gleeson is always wonderful to see!
Jan 31, 2024
Great clinician and a wonderful, kind, caring person. Gave me all the time I needed and wanted, never felt rushed. Careful explanations. Called me personally to give and explain results of an e consult she ordered. Exemplary care from an outstanding physician.
Jan 27, 2024
Dr. Gleeson is very thorough - always explains fully - [...].
Jan 22, 2024
Excellent! Provided information, discussed options and followed up immediately on course of action
Oct 23, 2023
We love Dr. Gleeson. So happy we found her. She is caring, thorough & on top of everything!!
Sep 19, 2023
I've already told my friends about Dr. Gleeson.
Sep 13, 2023
Provider explained everything about a report I had from colonoscope. [...]
Sep 04, 2023
[...] like Dr. Gleeson very much [...]
Aug 22, 2023
Provider had read my chart and knew about my other medical problems
Aug 18, 2023
Dr. Gleeson is an incredible provider. I would recommend her to anyone.
Jul 27, 2023
Dr. Gleeson was very thorough and I have great confidence in her.
Jul 18, 2023
This was my second visit with this provider. She is thoughtful and thorough. She had clearly done a thorough review of my record before the appointment, knew the issues that were of concern to her and me, really listened to my perspective and with me created a plan that we both felt comfortable with.
Jul 15, 2023
One aspect about this office is you never feel rushed, and the providers always spend enough time discussing any health questions.
Jul 05, 2023
Dr. Gleeson and her entire staff are wonderful
Jun 30, 2023
Dr. Gleeson always has my concerns and health needs in mind, always listens well and makes great recommendations, always spends as long as needed with me. I cannot recommend or commend her enough.
Jun 26, 2023
Dr. Gleeson always takes the time to explain my test results and listen to any concerns I may have and give advice on concerns she may have also. I would highly recommend Dr. Gleeson for the care and concern she demonstrates to me and her patients.
Jun 20, 2023
I have recommended Dr. Gleeson to many friends. I actually enjoy visits with her. Believe me, I have never said that about any Dr. I have seen. My visits are always very positive,
Jun 18, 2023
New PCP- first visit, discussed medications at length, ordered lab studies when asked to do so, plus her input.
Jun 14, 2023
Dr. Gleeson is an amazing physician-I truly believe that she saved my life during a recent incident of AF and pulmonary embolism. She persisted with other physicians to try to find a cause of plural effusion. She texts and questions until she finds an explanation that makes sense to her-then shares with me. This is very reassuring-especially when she reviews blood work and other testing to explain the decisions. She is an excellent physician and I feel blessed to have her as mine. Love her persistence!!
Jun 11, 2023
I have been with Dr Gleeson for decades. She's a fabulous PCP! Friends tell me how unhappy they are with their PCPs, and I realize how lucky I am! She really cares.
May 30, 2023
Dr. Gleeson knows me and gives me the required time to answer all my questions. She is an excellent provider!
May 22, 2023
Love, love, love Marylu!!
May 18, 2023
I'm normally anxious and Dr. Gleeson made me feel safe.
May 04, 2023
I value Dr. Gleeson's service as my doctor, personal and patient and caring. An outstanding physician. An asset to UR-Highland.
Mar 29, 2023
Dr. Gleeson is very detail oriented-I am so thankful that she is so thorough
Mar 29, 2023
Good.
Mar 28, 2023
Dr. Gleesson is very professional, She is direct and covers information, provides direction on handling one's health.
Feb 25, 2023
There should be something better than "very good" to choose from, because Dr. Gleeson is just an EXCELLENT provider in so many ways
Feb 24, 2023
Already recommended her to friends and family
Feb 22, 2023
It may seem strange for a patient to say, "I enjoy visiting my PCP!" It's a fact for me. Dr Gleeson is more a friend who is concerned for me and my health. We laugh about the easy "stuff" which makes it easier to discuss the more concerning issues. I have fun visits!
Dec 22, 2022
Excellent. Love her. [...]
Dec 22, 2022
Dr. Gleeson always takes the time, to listen to all my concerns and then come up with a plan of action. I would highly recommend Dr. Gleeson as a provider.
Dec 20, 2022
Inclined to be a little stern with me at times focusing heavily on time spent.
Nov 22, 2022
Very thorough & listening to all my concerns & questions.
Nov 22, 2022
Dr Gleeson is superb provider
Sep 29, 2022
Dr Gleeson is an exceptionally thorough, kind, funny, intelligent and detail-oriented physician. I feel ver, very lucky to be under her care.
Sep 25, 2022
Never felt as though she only had x number of minutes to address my care plan. Listened to all my concerns, did a physical exam, did NOT stare at her computer the whole time. I felt as though I was interacting with a person who was interested in my health and was willing to share her time and expertise directing me towards optimum health. Excellent rapport, didn't feel that I was a NUMBER that had to be addressed in x minutes . Complete and welcome change from my former health care provider! Thank you!
Aug 22, 2022
Dr. Gleeson is an excellent physician at every level. Besides being brilliant and down to earth, she is kind and compassionate and very caring. She makes everything seem possible and easy to accomplish, regardless of how complicated her recommendations might be in my plan of care.
Aug 13, 2022
Just love Dr. Gleeson!
Jul 13, 2022
I have referred Dr Gleeson to several friends.
Jun 23, 2022
Dr. Gleeson always takes the time to thoroughly go over my medical history, prescriptions and well being. I highly recommend Dr. Gleeson to anyone looking for a compassionate, caring provider.
Jun 21, 2022
There are no words to express the respect and admiration I have for Dr. Gleeson. She is essential to my physical and mental well-being.
Jun 20, 2022
Dr. Gleeson is the best doctor I have ever had the pleasure of dealing with. There is not a single negative thing that I could say about her. Any patient of hers is lucky to receive the level of care that she provides.
Jun 20, 2022
Dr. Gleeson is an excellent provider. Far exceeded my expectations.
May 31, 2022
I have been with Dr. Gleeson since 1996 and feel very safe with her. She seems like family.
May 25, 2022
Dr. Gleeson always got back to me about my COVID and kept checking on me, always listened to me - called me after hrs.!
May 19, 2022
Dr. Gleeson is the best doctor I have ever seen! She is knowledgeable and so caring. She was my cheerleader when I needed support. I adore her!
Apr 29, 2022
Dr Gleeson explained side effects of anti- viral med before prescribing.
Apr 26, 2022
Dr. Gleeson is the best!!
Apr 23, 2022
Excellent MD - Excellent care.
Apr 22, 2022
I value and appreciate being under the care of Dr. Gleeson.
Mar 28, 2022
Dr. Gleeson spent a lot of time with me, assessing past care, concerns, giving explanations. Very pleased.
Mar 23, 2022
LOVE Dr. Gleeson-she's compassionate, sincere, straightforward, great listener and puts my mind at ease!
Mar 23, 2022
I am always pleased with outcomes of each visit.
Mar 16, 2022
Dr. Gleeson has a clear & compassionate understanding of geriatric problems, concerns, & mediations. Her care is excellent & professional. I trust her completely.
Mar 15, 2022
Dr. Gleason always comes super-prepared with notes and insights. She is a gifted doctor. I am under the care of an oncologist and while I have confidence in [...], it is the time with Dr. G that truly helps me understand my medical situations, ontological and otherwise. She is the ultimate doctor in whom I place my trust. Dr. G has taken a deep interest in the type of cancer that challenges me. On both a personal and professional level during this appointment and always she is the medical provider I most value and trust. [...] I took comfort in knowing that in this appointment with Dr. G I would gain important insights and reassurance. Dr. G called me twice that evening with additional information. I could write a book about the superb qualities Dr. Gleeson brings to the profession and how she should be emulated.
Feb 25, 2022
Dr. Gleeson exceeded my expectations - As a new patient, I am very impressed with her level of care, sensitivity to issues, and thoroughness with everything.
Feb 11, 2022