

Demetris Delos, MD
Clinical Interests
Shoulder, Elbow, Knee Surgery; Joint Preservation Surgery, Joint Replacement Surgery
Located In
Greenwich, Stamford
About
Demetris Delos, MD is a fellowship trained, board-certified orthopedic surgeon who specializes in knee, shoulder and elbow conditions. He is a nationally recognized leader in sports medicine and knee and shoulder surgery. Dr. Delos has over 30 peer-reviewed articles and more than 50 national and international presentations. He has authored or co-authored more than five textbook chapters.
Dr. Delos has a particular interest in minimally invasive methods of shoulder surgery and complex knee preservation surgery, including revision surgery for torn ligaments, meniscal and cartilage transplantation, and joint replacement (both partial and total). He has a particular interest in biologic forms of treatment, such as platelet rich plasma (PRP) and stem cell therapy, and has conducted seminal research on the topic.
As an athlete whose playing career was affected by a serious knee injury, Dr. Delos works with competitive athletes and weekend warriors to help them achieve their goal of returning to the highest levels of activity possible. He has extensive experience caring for athletes of all competitive levels, including professional, college and high school athletes. He is a former assistant orthopaedic surgeon for the NY Giants Football team and is currently the team physician for the Purchase College Athletic Department and the Westchester Flames semi-professional soccer team. Dr. Delos also serves as a team physician for many local high schools, including Byram Hills High School, Greenwich High School, Iona Prep and Manhattanville College.
Dr. Delos earned his medical degree from Weill Medical College of Cornell University and completed his orthopaedic residency at Hospital for Special Surgery (HSS)/New York-Presbyterian Hospital. He completed a research fellowship at the HSS Laboratory for Soft Tissue Research as well as a surgical fellowship in Sports Medicine and Shoulder Surgery at HSS, where he was Chief Administrative Fellow.
Aetna
- Commercial Plans (Including APCN Plus, We do not accept regular APCN)
- Managed Medicare
Anthem Blue Cross Blue Shield of CT
- Commercial and Exchange
- Managed Medicare
Blue Cross Blue Shield (Plans Outside CT)
- Cards with the “PPO” inside the suitcase logo
CarePartners of Connecticut
- Managed Medicare (HMO/PPO)
Cigna
- Commercial, MetroNY, and LocalPlus
- Cigna+Oscar, Cigna+MVP (CT Locations Only)
ConnectiCare
- Commercial and Exchange (Except “Value” Network)
- Managed Medicare
Connecticut Medicaid
Connecticut State Workers’ Compensation
EmblemHealth
- Emblem Commercial and Exchange (Except for Millennium and Enhanced Care Prime Networks)
- Managed Medicare (VIP Prime, Bold, Reserve)
Harvard Pilgrim
- Through United Shared Services – ONS Harrison location only.
Medicare (Including Railroad Medicare)
Oxford
- Liberty and Freedom Plans
UHC/NYSHIP/NY Government Empire Plan
United Healthcare
- All Commercial Plans (Except Indemnity and Compass)
- Managed Medicare
Orthopaedic & Neurosurgery Specialists (ONS) accepts most major insurance plans. Please see the list of accepted insurance plans above and confirm that ONS participates with your plan prior to scheduling an appointment. Certain insurance plans are limited to specific regions and physicians. If you have additional questions, please call our offices at (203) 869-1145 ext. 279 and our team will be happy to provide additional information.