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.
He’s not only very knowledgeable, but has great bedside manner. Grateful for his help!!
(4 days ago)
Sep-2026
Great caring Dr and person
(5 days ago)
Sep-2026
Knowledgeable, professional, and very caring
(6 days ago)
Sep-2026
Very professional and extremely knowledgeable regarding his field.
(1 week ago)
Sep-2026
Personable
(1 week ago)
Sep-2026
Very helpful explaining my problem.
(1 week ago)
Sep-2026
Dr Harrington Is both professional and amicable He explains diagnoses and care thoroughly and understandably
Highly Recommend
(1 week ago)
Sep-2026
The guy is great.
(2 weeks ago)
Sep-2026
Excellent and clear communication with patient.
(2 weeks ago)
Sep-2026
Treated very kindly by all the nurses. Service with a smile. Dr. Harrington is the best.
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.
He’s not only very knowledgeable, but has great bedside manner. Grateful for his help!!
Great caring Dr and person
Knowledgeable, professional, and very caring
Very professional and extremely knowledgeable regarding his field.
Personable
Very helpful explaining my problem.
Dr Harrington Is both professional and amicable He explains diagnoses and care thoroughly and understandably Highly Recommend
The guy is great.
Excellent and clear communication with patient.
Treated very kindly by all the nurses. Service with a smile. Dr. Harrington is the best.