Michael L. Knudsen, MD
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Overview
Michael L. Knudsen, MD, is a board-certified, fellowship-trained shoulder and elbow surgeon at Columbia University Irving Medical Center and NewYork-Presbyterian, providing comprehensive surgical care for shoulder and elbow conditions in New York City and Westchester. His practice includes shoulder replacement, rotator cuff repair and revision surgery, shoulder instability and labral repair, fracture care, and elbow surgery, with particular expertise in complex shoulder reconstruction and primary and revision shoulder replacement.
Dr. Knudsen performs anatomic and reverse total shoulder replacement for advanced shoulder arthritis, rotator cuff deficiency, fractures, and other complex shoulder conditions. He also evaluates patients with painful or failed prior shoulder replacements, glenoid deformity or bone loss, and persistent problems after previous shoulder surgery. He incorporates advanced imaging and CT-based three-dimensional planning into patient-specific surgical planning and complex reconstruction when appropriate.
His comprehensive shoulder practice also includes repair of rotator cuff tears, treatment of massive or failed rotator cuff tears, recurrent shoulder instability and dislocation, labral injuries, instability associated with glenoid bone loss, and traumatic shoulder injuries. His elbow practice includes arthroscopic, tendon, ligament, and fracture surgery. Dr. Knudsen welcomes complex second opinions for patients considering shoulder or elbow surgery or experiencing persistent problems after a previous operation.
Dr. Knudsen completed orthopedic surgery residency at the University of Minnesota and advanced fellowship training in shoulder and elbow surgery at Columbia University Irving Medical Center/NewYork-Presbyterian. His sports medicine experience includes previous team-physician roles with the Minnesota Twins, St. Paul Saints, University of Minnesota Athletics, New York Yankees, and Columbia University Athletics. He currently serves as Assistant Team Physician for Iona University Athletics.
In addition to his clinical practice, Dr. Knudsen instructs Columbia orthopedic surgery residents and shoulder-and-elbow fellows. His academic work focuses on shoulder arthroplasty, complex reconstruction, rotator cuff repair, shoulder instability, fractures, and sports-related shoulder and elbow injuries. He has authored or coauthored more than 30 peer-reviewed publications and multiple book chapters. He is Section Head ofJBJS Clinical Classroom–Shoulder & Elbow, serves on the AAOS Shoulder & Elbow Program Committee and ASES Education Committee, and serves as faculty for national courses in shoulder arthroplasty and revision surgery.
Areas of Expertise / Conditions Treated
- Arthroscopic Shoulder Surgery
- Biceps and Triceps Tendon Ruptures
- Elbow Arthroscopy
- Elbow Fracture Surgery
- Elbow Ligament Reconstruction
- Elbow Surgery
- Labral Tear of Shoulder
- Reverse Shoulder Arthroplasty
- Revision of Joint Replacement
- Rotator Cuff Repair
- Rotator Cuff Surgery
- Rotator Cuff Tear
- Shoulder Arthritis
- Shoulder Arthroplasty
- Shoulder Fracture Surgery
- Shoulder Instability
- Shoulder Reconstruction
- Shoulder Replacement
- Shoulder Replacement Surgery
- Shoulder Trauma Surgery
Academic Appointments
- Assistant Professor of Orthopedic Surgery at CUMC
Administrative Titles
- Attending Physician, NewYork-Presbyterian Hospital
Hospital Affiliations
- NewYork-Presbyterian / Columbia University Irving Medical Center
- NewYork-Presbyterian Westchester
- NewYork-Presbyterian Allen Hospital
Gender
- Male
Schedule an Appointment
Phone Appointments
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Location(s)
Insurance Accepted
Aetna
- Aetna Signature Administrators
- EPO
- HMO
- Medicare Managed Care
- NY Signature
- POS
- PPO
- Student Health
Affinity Health Plan
- Essential Plan
- Medicaid Managed Care
AmeriHealth of New Jersey
- PPO - New Jersey Services
Amida Care
- Special Needs
Cigna
- EPO
- Great West (National)
- HMO
- POS
- PPO
ElderServe
- Special Needs
Emblem/GHI
- Medicare Managed Care
- PPO
Emblem/HIP
- ConnectiCare
- EPO
- Essential Plan
- HMO
- Medicaid Managed Care
- Medicare Managed Care
- POS
- PPO
- Select Care (Exchange)
- Vytra
Empire Blue Cross/Blue Shield
- EPO
- HMO
- Medicare Managed Care
- PPO
Empire Blue Cross Blue Shield HealthPlus
- Child/Family Health Plus
- Essential Plan
- Individual Network (Exchange)
- Medicaid Managed Care
Fidelis Care
- Child/Family Health Plus
- Essential Plan
- Medicaid Managed Care
- Medicare Managed Care
Healthfirst
- Child/Family Health Plus
- Leaf (Exchange)
- Medicaid Managed Care
- Medicare Managed Care
Healthspring (Cigna Medicare)
- Medicare Managed Care
Horizon Blue Cross Blue Shield
- EPO - New Jersey Services
- HMO - New Jersey Services
- POS - New Jersey Services
- PPO - New Jersey Services
Local 1199
- NYP Employee Plan
MagnaCare (National)
- MagnaCare
Medicare
- Railroad
- Traditional Medicare
MVP Health Care
- Child/Family Health Plus
- Essential Plan
- HMO
- Medicaid Managed Care
QualCare
- POS - New Jersey Services
UnitedHealthcare
- Empire Plan
- HMO
- Medicaid (Community Plan)
- Medicare Managed Care
- Oxford Freedom
- Oxford HMO
- Oxford Liberty
- POS
- PPO
VNSNY CHOICE
- Medicare Managed Care
- SelectHealth
- Special Needs
WellCare
- Medicaid Managed Care
- Medicare Managed Care
Workers Compensation
- Workers Comp-Board of NY
World Trade Center Health Plan
- World Trade Center Health Plan
Credentials & Experience
Education & Training
- University of Minnesota Medical School
- Residency: University of Minnesota Medical Center
- Fellowship: Columbia University Medical Center
Board Certifications
- Orthopaedic Surgery




