Gregory C. Mallo, MD

Board Certified
Harvard Shoulder Fellowship
Advanced Shoulder Reconstruction & Sports Medicine


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Gregory C. Mallo, MD, FAAOS is a board certified orthopedic surgeon specializing in shoulder reconstruction and arthroscopy of the shoulder and knee.

As a medical officer in the United States Navy, Dr. Mallo was deployed to a forward operating position in the Helmand Province of Afghanistan with the Marines of the Combat Logistics Battalion out of Camp Lejeune in Jacksonville, North Carolina. His military practice involved complex shoulder and knee care for Marines and Sailors including members of the Elite Special Forces and Wounded Warrior Communities. In 2014 Dr. Mallo was one of only four surgeons in the nation chosen for the prestigious Advanced Arthroscopy Traveling Fellowship program by the Arthroscopy Association of North America (AANA).

Dr. Mallo also completed a fellowship dedicated to Shoulder Reconstruction and Arthroscopy at Harvard University / The Boston Shoulder Institute. The fellowship was completed under the directorship of Jon J.P. Warner, MD, Laurence D. Higgins, MD, Matthew T. Provencher, MD, and Tom Holovacs, MD.

This prestigious, comprehensive immersion into the open and arthroscopic treatment of complex shoulder conditions, including revision rotator cuff surgery and shoulder arthroplasty, is based at the renowned Massachusetts General Hospital in Boston, MA.

In addition, Dr. Mallo spent time as an International Visiting Shoulder Fellow in Annecy, France, at the Alps Surgical Institute under Laurent Lafosse and at Uniklink Balgrist in Zurich, Switzerland, under Drs. Christian Gerber and Domniik Meyer.


Shoulder Arthroscopy & Reconstruction

• Primary & Revision Minimally Invasive Arthroscopic Surgery
• Primary & Revision Shoulder Replacement

Sports Medicine

• Minimally Invasive Arthroscopic Treatment of Knee Conditions

Nicholle Mylett, Office Manager
Lisa Farrell, Administrative Assistant
Bianca Lopez, Medical Assistant
Lia Simonetti, Receptionist

East Setauket

6 Technology Drive
East Setauket, New York 11733


55 Medford Avenue
Suite E
Patchogue, NY 11772


500 Commack Road
Suite 150B
Commack, NY 11725

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Office Locations - Blue Surgery Locations: Green Outpatient Rehabilitation Locations: Red