The reviews listed below were collected independently of Princeton Orthopaedic Associates through rater8. Each review represents an authentic and verified patient experience.
Very nice
(3 days ago)
Sep-2026
Terrific doctor
(4 days ago)
Sep-2026
Kind, thorough and reassuring. Seen on time and felt well cared for, from start to finish, with the medical assistant Xavier, through radiology with Linda and Savannah, and of course, the wonderful Dr. Grenis.
(4 days ago)
Sep-2026
I trust Dr. Grenis with my hands. One doesn’t realize how important hands are until they don’t work! Thanks to Dr Grenis my hands now are free from pain and they work!
(1 week ago)
Sep-2026
Caring.. Makes you feel comfortable,
(1 week ago)
Sep-2026
Very easy doctor to talk to, friendly and approachable. He is a confident and experienced doctor. Felt comfortable during the visit and happy with the diagnosis and treatment. Thank you!
(2 weeks ago)
Sep-2026
Exceptional doctor and staff
(2 weeks ago)
Sep-2026
Caring, knowledgeable
(3 weeks ago)
Sep-2026
Quick service with minimal waiting. Good technology at Check in
(3 weeks ago)
Sep-2026
Thorough. Explained every option after diagnosing my symptoms.
Dr. Michael Grenis is a board-certified orthopedic surgeon with a subspecialty interest in hand surgery and the treatment of orthopedic trauma.
Born and raised in Newburgh, N.Y., Dr. Grenis received his undergraduate education at Cornell University where he majored in biochemistry. He earned an M.D. degree at New York Medical College where he was elected to Alpha Omega Alpha, the national medical honor society.
After medical school, Dr. Grenis did an internship in surgery, a residency in orthopedic surgery and a fellowship in hand surgery, all at New York University Medical Center and Bellevue Hospital in New York City. His special interest and advanced training in hand surgery encompasses the evaluation and treatment of conditions such as carpal tunnel syndrome, tendonitis, fractures and ligament injuries of the hand and wrist.
Dr. Grenis has been practicing orthopedic and hand surgery in Princeton since 1990. He has hospital privileges at the University Medical Center of Princeton at Plainsboro and Capital Health System.
Dr. Grenis has been named a “Top Doctor” by the Castle-Connolly Guide to Top Doctors in the New York Metro Area.
Dr. Grenis has published papers in national orthopedic review journals and has presented a scientific paper at a national meeting of the American Association for Hand Surgery. He is a member of the American Academy of Orthopaedic Surgeons, the New Jersey Medical Society, and the Orthopaedic Trauma Association.
See other doctors in Princeton Orthopaedic Associates
Very nice
Terrific doctor
Kind, thorough and reassuring. Seen on time and felt well cared for, from start to finish, with the medical assistant Xavier, through radiology with Linda and Savannah, and of course, the wonderful Dr. Grenis.
I trust Dr. Grenis with my hands. One doesn’t realize how important hands are until they don’t work! Thanks to Dr Grenis my hands now are free from pain and they work!
Caring.. Makes you feel comfortable,
Very easy doctor to talk to, friendly and approachable. He is a confident and experienced doctor. Felt comfortable during the visit and happy with the diagnosis and treatment. Thank you!
Exceptional doctor and staff
Caring, knowledgeable
Quick service with minimal waiting. Good technology at Check in
Thorough. Explained every option after diagnosing my symptoms.