Meet Dr. Marc Greenstein, D.O.

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Marc Greenstein, D.O., graduated with honors from the University of Delaware in 1993. He graduated from the Philadelphia College of Osteopathic Medicine in 1997. In 2003, he completed a urology residency at the Albert Einstein Medical Center and Medical College of Pennsylvania, which was sponsored by the Philadelphia College of Osteopathic Medicine. He is member of the American Urologic Association, the Endourology Society and the American College of Osteopathic Surgeons. Dr. Greenstein is board certified by the American Osteopathic Board of Surgery. Dr. Greenstein specializes in minimally invasive surgery, stone disease, cryosurgery and robotic surgery.

Dr. Greenstein has been in private practice in Denville, NJ since 2003. He enjoys scuba diving, skiing and traveling. He thanks his wife for their new born son and rescue dog.

If you have a question for Dr. Greenstein, send it to and check back at the first of the month to see whether it’s been answered. Once a month, Dr. Greenstein will pick three to five of your questions to answer in his SharePost. Although Dr. Greenstein cannot give specific diagnoses, treatment recommendations or medical advice through our site, he will try to provide as much useful information as possible. We appreciate your questions and if yours is reprinted in Dr. Greenstein's SharePost, your identity will be kept confidential.

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