Dr. John T. Phelan II is a board-certified physician in Internal Medicine, Hematology, and Medical Oncology. He earned his Bachelor of Science in Chemistry from Boston College and his M.D. from the Medical College of Wisconsin. Dr. Phelan completed his Internal Medicine residency at the University of Michigan Medical Center and pursued a fellowship in Hematology/Oncology at the University of Alabama at Birmingham. Prior to joining New York Oncology Hematology, he served as an attending physician at the Lipson Cancer Center at Rochester General Hospital and held an affiliated faculty appointment at Roswell Park Cancer Institute.
Dr. John T. Phelan II is a board-certified physician in Internal Medicine, Hematology, and Medical Oncology. He earned his Bachelor of Science in Chemistry from Boston College and his M.D. from the Medical College of Wisconsin. Dr. Phelan completed his Internal Medicine residency at the University of Michigan Medical Center and pursued a fellowship in Hematology/Oncology at the University of Alabama at Birmingham. Prior to joining New York Oncology Hematology, he served as an attending physician at the Lipson Cancer Center at Rochester General Hospital and held an affiliated faculty appointment at Roswell Park Cancer Institute.
The reviews listed below were collected independently of New York Oncology Hematology through rater8. Each review represents an authentic and verified patient experience.
Excellent care provided
(3 days ago)
Jan-2026
Very pleased would recommend family and friends to him
(5 days ago)
Jan-2026
Very good Doctor, very thoughtful and honest.
(6 days ago)
Jan-2026
Dr Phelan has always shown interest in my health. I find him to be an excellent physician who takes the time to review my chart before I see him. I would definitely refer anyone to him.
(3 weeks ago)
Jan-2026
Thorough & engaged as always!
(1 month ago)
Dec-2025
Dr. Phelan is the best. Very thorough. Always answers questions.
(1 month ago)
Dec-2025
Has made me feel so comfortable. He is honest yet not out to scare you. I am very glad to have him as a doctor and feel he is in every way monitoring my condition very closely
(2 months ago)
Dec-2025
Dr Phelan is an amazingly kind Dr who truly cares not only about the conditions he’s treating, but the whole person as well as what may be happening in their life that may be contributing to feeling bad but also making sure they are safe. I have been beyond blessed to have him as my Dr for the last 15 yrs.
(2 months ago)
Nov-2025
Dr was thorough and nurse Crystal fantastic my blood pressure was crazy and she kept trying to see what was going on. Bravo for both Dr and Crystal,
(2 months ago)
Nov-2025
Dr. Phelan worked to finally develop a treatment plan that works and is tolerable. Thanks so much.
(2 months ago)
Nov-2025
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Troy Cancer Center
258 Hoosick Street Suite 201 Troy, NY 12180
Dr. John T. Phelan II is a board-certified physician in Internal Medicine, Hematology, and Medical Oncology. He earned his Bachelor of Science in Chemistry from Boston College and his M.D. from the Medical College of Wisconsin. Dr. Phelan completed his Internal Medicine residency at the University of Michigan Medical Center and pursued a fellowship in Hematology/Oncology at the University of Alabama at Birmingham. Prior to joining New York Oncology Hematology, he served as an attending physician at the Lipson Cancer Center at Rochester General Hospital and held an affiliated faculty appointment at Roswell Park Cancer Institute.
Excellent care provided
Very pleased would recommend family and friends to him
Very good Doctor, very thoughtful and honest.
Dr Phelan has always shown interest in my health. I find him to be an excellent physician who takes the time to review my chart before I see him. I would definitely refer anyone to him.
Thorough & engaged as always!
Dr. Phelan is the best. Very thorough. Always answers questions.
Has made me feel so comfortable. He is honest yet not out to scare you. I am very glad to have him as a doctor and feel he is in every way monitoring my condition very closely
Dr Phelan is an amazingly kind Dr who truly cares not only about the conditions he’s treating, but the whole person as well as what may be happening in their life that may be contributing to feeling bad but also making sure they are safe. I have been beyond blessed to have him as my Dr for the last 15 yrs.
Dr was thorough and nurse Crystal fantastic my blood pressure was crazy and she kept trying to see what was going on. Bravo for both Dr and Crystal,
Dr. Phelan worked to finally develop a treatment plan that works and is tolerable. Thanks so much.