The reviews listed below were collected independently of Princeton Orthopaedic Associates through rater8. Each review represents an authentic and verified patient experience.
Easy to talk to. Explains your situation clearly.
(6 days ago)
May-2026
Dr. Grenis is very knowledgeable and professional. He’s friendly and efficient.
(6 days ago)
May-2026
Listens and compassionate
(1 week ago)
May-2026
Professional friendly know what he’s doing knowledgeable
(1 week ago)
May-2026
He is an amazing doctor, explains so clearly and suggests the best solution.
(1 week ago)
May-2026
Doctor Michael Grenis is a wonderful doctor
(2 weeks ago)
Apr-2026
Dr Grenis is knowledgeable and skilled. Great doctor!
(2 weeks ago)
Apr-2026
Seen on time very kind and caring.
(2 weeks ago)
Apr-2026
Very professional. He has a great sense of humor and genuinely cares about his patients.
(3 weeks ago)
Apr-2026
Possibly one of the best surgeons I've encountered in my life. Thank you!
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
Easy to talk to. Explains your situation clearly.
Dr. Grenis is very knowledgeable and professional. He’s friendly and efficient.
Listens and compassionate
Professional friendly know what he’s doing knowledgeable
He is an amazing doctor, explains so clearly and suggests the best solution.
Doctor Michael Grenis is a wonderful doctor
Dr Grenis is knowledgeable and skilled. Great doctor!
Seen on time very kind and caring.
Very professional. He has a great sense of humor and genuinely cares about his patients.
Possibly one of the best surgeons I've encountered in my life. Thank you!