Thomas Gregory Harrington, M.D., a Long Island native, graduated from St. John the Baptist Diocesan High School and received a Bachelor of Science in Biological Sciences from Binghamton University. He received a Doctorate in Medicine from New York Medical College and went on to complete an internship in General Surgery at S.U.N.Y. at Buffalo.
Thomas Gregory Harrington, M.D., a Long Island native, graduated from St. John the Baptist Diocesan High School and received a Bachelor of Science in Biological Sciences from Binghamton University. He received a Doctorate in Medicine from New York Medical College and went on to complete an internship in General Surgery at S.U.N.Y. at Buffalo.
The reviews listed below were collected independently of Advanced Urology Centers of New York (AUCNY) through rater8. Each review represents an authentic and verified patient experience.
Super pleasant and has a relaxing demeanor. Professional and shows true concern for me as a patient and a person.
(5 days ago)
Jan-2026
There is not a rating that is high enough for Dr Harrington. He and his whole staff are fantastic.
(5 days ago)
Jan-2026
Takes the time to answer all your questions. Professional and down to earth.
(6 days ago)
Jan-2026
Dr. Harrington is an extremely thorough, knowledgeable well-respected physician with an excellent bedside manner. He immediately puts you at ease, takes the time to listen, and explains everything clearly. I felt completely comfortable and confident in his care, and I would trust and recommend him without hesitation.
(6 days ago)
Jan-2026
Dr. Harrington is very patient and caring. I love talking to him with any concerns that I may have.
(6 days ago)
Jan-2026
Extremely knowledgable, very thorough with easy to understand remarks and creates a solid “game plan” for the future!
(1 week ago)
Jan-2026
One of the best “bedside” manners I ever dealt with.
He gave me all the time I needed to discuss everything that was on my mind
I’m glad he is my doctor
(1 week ago)
Jan-2026
Entire staff work as a well trained team tAnd the Dr.. was able to make and explain what my problem is
Thomas Gregory Harrington, M.D., a Long Island native, graduated from St. John the Baptist Diocesan High School and received a Bachelor of Science in Biological Sciences from Binghamton University. He received a Doctorate in Medicine from New York Medical College and went on to complete an internship in General Surgery at S.U.N.Y. at Buffalo. Following a second year of General Surgery at S.U.N.Y. at Stony Brook, he completed his Urology residency at Stony Brook in 1997, during which time he published articles on the subjects of male infertility and urologic trauma.
Dr. Harrington is the Chairman of Urology at St Catherine of Siena Medical Center in Smithtown and has served as Director of the Department of Surgery and also as President of the Medical Staff. He is also on the attending staff at John T. Mather Memorial Hospital and St. Charles Hospital and Rehabilitation Center in Port Jefferson Station, as well as Huntington Hospital. Dr. Harrington is a Diplomate of the American Board of Urology, Fellow of the American College of Surgeons and practices Adult and Pediatric Urology in Smithtown.
Super pleasant and has a relaxing demeanor. Professional and shows true concern for me as a patient and a person.
There is not a rating that is high enough for Dr Harrington. He and his whole staff are fantastic.
Takes the time to answer all your questions. Professional and down to earth.
Dr. Harrington is an extremely thorough, knowledgeable well-respected physician with an excellent bedside manner. He immediately puts you at ease, takes the time to listen, and explains everything clearly. I felt completely comfortable and confident in his care, and I would trust and recommend him without hesitation.
Dr. Harrington is very patient and caring. I love talking to him with any concerns that I may have.
Extremely knowledgable, very thorough with easy to understand remarks and creates a solid “game plan” for the future!
One of the best “bedside” manners I ever dealt with. He gave me all the time I needed to discuss everything that was on my mind I’m glad he is my doctor
Entire staff work as a well trained team tAnd the Dr.. was able to make and explain what my problem is
had to wait over 45 minutes to be seen!
Very caring and thorough urologist.