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.
Extremely confident with my dr
(6 days ago)
Jul-2026
Best Doctor
(1 week ago)
Jul-2026
Extremely thorough and answered all questions…
(2 weeks ago)
Jul-2026
Dr. Harrington has a wonderful bedside manner and is extremely comforting towards his patients. The staff is very helpful and supportive.
(2 weeks ago)
Jul-2026
Very Professional office . Thank you for making me feel comfortable getting my exam .
(2 weeks ago)
Jul-2026
Dr.Harrington is a very good doctor, he’s
a pleasant, has a very nice personality,
And very knowledgeable. He is a man
Who cares deeply about his patients. I
Consider him a friend.
(2 weeks ago)
Jul-2026
Quality caring treatment as usual with Dr. H.
(2 weeks ago)
Jul-2026
Exceptional service
(2 weeks ago)
Jul-2026
For first visit... So far so good.
(1 month ago)
Jul-2026
Registering before ones appointment is fast and easy and it makes your arrival smooth and efficient.. The staff is very helpful and Dr. Harrington is terrific . Friendly, personable and professional.
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.
Extremely confident with my dr
Best Doctor
Extremely thorough and answered all questions…
Dr. Harrington has a wonderful bedside manner and is extremely comforting towards his patients. The staff is very helpful and supportive.
Very Professional office . Thank you for making me feel comfortable getting my exam .
Dr.Harrington is a very good doctor, he’s a pleasant, has a very nice personality, And very knowledgeable. He is a man Who cares deeply about his patients. I Consider him a friend.
Quality caring treatment as usual with Dr. H.
Exceptional service
For first visit... So far so good.
Registering before ones appointment is fast and easy and it makes your arrival smooth and efficient.. The staff is very helpful and Dr. Harrington is terrific . Friendly, personable and professional.