Gregory C. Mallo, M.D., F.A.A.O.S.
"Together, we will customize and implement a treatment plan using all available resources, including surgery only when necessary."
About Dr. Mallo
Gregory C. Mallo, M.D., F.A.A.O.S., is a board-certified, fellowship-trained shoulder specialist who has published and presented on a variety of shoulder-related orthopedic topics, including rotator cuff injury, total shoulder arthroplasty, and posterior shoulder pain. Before joining Orlin & Cohen, Dr. Mallo was a shoulder specialist at St. Charles Hospital.
Read MoreHospital Affiliations
- Mather Hospital, Port Jefferson, NY
Professional Affiliations
- American Academy of Orthopedic Surgeons, Fellow
- Society of Military Orthopedics, Member
- Arthroscopy Association of North America, Member
- American Mensa, Member
Licensures & Certifications
- American Board of Orthopedic Surgery
- Combat Extremity Certification
- Advanced Trauma Life Saving Certification
- Basic Life Saving Certification
- New York State License
Medical Education
- Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA, 2005
Internships
- General Surgery, Stony Brook University Hospital, Stony Brook, NY, 2006
Residency
- Orthopedic Surgery, Stony Brook University Hospital, Stony Brook, NY, 2010
Fellowships
- AANA Advanced Arthroscopy Traveling Fellowship Program, 2014
- Harvard Shoulder Fellowship Program, Boston, MA, 2015
Castle Connolly Top Doctors
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Share your experience with Dr.Mallo now.
Kathy Gannon
Procedure
Shoulder Surgery
In June of 2024 I had shoulder surgery after years of pain and limited movement. I started PT with D...
Konstandinos Vlachos
Procedure
Shoulder Surgery
I had a procedure on Feb 27 2025 by Dr. Mallo on my left shoulder The procedure it was a success and...
Charles Ferro
Procedure
Shoulder Surgery
I put this off for about 1 1/2 years. I saw 3 surgeons and asked around quite a bit. I have 3 people...
Kathleen Schombs
Procedure
Shoulder Surgery
Rich helped me to get better after shoulder surgery. Worked and explained everything to me. I would ...
Kathleen Schombs
Procedure
Calcification Tendinitis of Shoulder
Had a great experience working with Eileen after shoulder surgery. Walked me through and explained h...
Christopher Stelmach
Procedure
Rotator Cuff Repair
I injured my shoulder in May of last year and did not see a doctor until August because I played Gol...
Ryan Huffman
Procedure
Bi-lateral rotator cuff repair
Dr. Mallo performed rotator cuff repair on both my left and right shoulders. I am 7 months out from ...
Charlene Morton
Procedure
Both shoulders
Dr. Mallo and Danny, the P.A., did an amazing job repairing both my shoulders. Leslie Bernstein, DPT...
Deborah Kaye-Ohman
Procedure
left Shoulder
I had surgery on my left shoulder in 2 spots. I had a lot of pain and some discomfort. I had PT with...
Glenn McIver
Procedure
Frozen shoulder
After receiving a frozen shoulder diagnosis from Dr. Mallo and a physical therapy prescription I wen...
Kathleen Meyer
Procedure
Reverse shoulder replacement
I was initially hesitant to consider surgery. However, Dr. Mallo’s reputation, experience and expe...
Paul Scaley
Procedure
Acute severe left shoulder TRC
Unfortunately, my MRI test results confirmed Dr. Mallo's suspicions. I will need a shoulder replacem...
Lydia Blake
Procedure
Shoulder Replacement
I had my shoulder replaced by Dr. Gregory Mallo in September of 2021. I felt extremely well taken ca...
Paul Amarante
Procedure
Cortisone Injection
Had shoulder pain, which was seriously impacting my ability to work out (weightlifting, universal ma...
Allan Fain
Procedure
Rotator Cuff
I had a very complicated surgery, Dr. Mallo and his P.A. Daniel were an unbelievable team. They were...
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