Education

  • College: Dartmouth College, Hanover, NH
  • Medical School: Tufts University School of Medicine, Boston, MA, MD/MBA in Health Management
  • Residency: Orthopaedic Surgery, Columbia University Medical Center/New York Orthopaedic Hospital, New York, NY
  • Fellowship: Sports Medicine, Lenox Hill Hospital/Nicholas Institute of Sports Medicine & Athletic Trauma, New York, NY
  • Fellowship: Shoulder & Elbow Surgery, Washington University School of Medicine, Saint Louis, MO

Biography

Castle Connolly 2021 Top DoctorsDr. Kowalsky currently sees patients in the ONS offices in Greenwich, Harrison, and Stamford.

Marc Kowalsky, MD is a board-certified orthopedic surgeon, with subspecialty certification in Sports Medicine by the American Board of Orthopaedic Surgery.  He completed two subspecialty fellowships:  the first in Sports Medicine at Lenox Hill Hospital/Nicholas Institute of Sports Medicine and Athletic Trauma, and the second in Shoulder & Elbow Surgery at the Washington University School of Medicine.  He has expertise in the surgical and nonsurgical management of sports injury of the shoulder, elbow and knee.  He treats complex shoulder and elbow conditions, including degenerative disease, trauma, and revision surgery. He has a particular interest in the management of shoulder and elbow arthritis, instability, ligament and tendon injuries, as well as knee ligament injury and cartilage disorders.

Dr. Kowalsky has authored original research manuscripts, review articles, and textbook chapters focusing on rotator cuff repair, shoulder replacement, and AC joint reconstruction. He currently serves as a reviewer for the Journal of the American Academy of Orthopaedic Surgeons, Journal of Shoulder and Elbow Surgery and the American Journal of Sports Medicine.  He serves on the Executive Committee of the American Clinical Elbow and Shoulder Surgeons, and is an active member of The American Shoulder and Elbow Surgeons, a society made up of the leading national and international shoulder and elbow surgeons.

Dr. Kowalsky has cared for college and professional athletes at every level of competition.  As a sports medicine fellow, he was an assistant team physician for the New York Jets and the New York Islanders.  He has provided sports medicine coverage for the Tournament of Champions Squash Tournament and the United States Open Tennis Championship.  He currently serves as team physician for the White Plains Rugby Football Club, Iona College Rugby Football Club, and the Greenwich High School Rugby Team. He currently serves as medical director for the Northeast Academy national development rugby program.  Dr. Kowalsky is a team physician for the CT Whale of the National Women’s Hockey League, and for the USA Rugby National Team.

Dr. Kowalsky sees patients at ONS locations in Harrison, NY and Greenwich and Stamford, CT.

Affiliations

  • American Board of Orthopaedic Surgery | Diplomate
  • American Academy of Orthopaedic Surgeons | Fellow
  • The American Shoulder and Elbow Surgeons | Active Member
  • Association of Clinical Elbow and Shoulder Surgeons
  • Arthroscopy Association of North America
  • American Orthopaedic Society for Sports Medicine
  • Connecticut Orthopaedic Society | Board of Directors

Sports Teams Affiliations

  • USA Rugby National Team | Team Physician
  • Connecticut Whale | Team Physician
  • Northeast Academy | Medical Director
  • White Plains Rugby Football Club | Team Physician
  • Iona College Rugby Football Club | Team Physician
  • Greenwich High School Rugby Team| Team Physician
  • Eastern FC Football Club | Medical Director

Honors

  • Castle Connolly Top Doctor in NY Metro Area, 2021
  • Greenwich Magazine, Top Doctor in Fairfield County, 2021
  • Stamford Magazine, Top Doctor in Fairfield County, 2021
  • New Canaan/Darien Magazine, Top Doctor in Fairfield County, 2021
  • Westport Magazine, Top Doctor in Fairfield County, 2021
  • New York Super Doctors, 2015–2021
  • New York Super Doctors Rising Stars, 2013–2014
  • Vitals.com Patient Choice Award
  • Vitals.com Compassionate Doctor Recognition
  • Best Fellow Research Presentation Award, Lenox Hill Hospital Department of Orthopaedic Surgery
  • Alexander Garcia, MD Senior Resident Award, New York Orthopaedic Hospital
  • Rosamond Kane, MD Pediatric Resident Award, New York Orthopaedic Hospital

Testimonials

Z.G.5 Star Google Review

"From start to finish Dr Kowalsky & his office set a gold standard for orthopedics. Laid out the options, pros/cons, made them relevant in layman’s terms & real life examples. Follow up visits to the Gwich office + PT clinic was always quick & easy and staff were friendly. Nice guy, great doctor / practice."

G.B5 Star Google Review

“I had a sports injury and needed AC joint surgery to repair my shoulder. After several consultations including HSS, I chose Dr. Kowalsky due to his experience, knowledge, and professional bedside manner. The outpatient ambulatory surgical center in Stamford was beautiful, extremely clean, and staffed with a professional staff of doctors and nurses. The ASC staff made me feel safe and comfortable during my pre/post-surgery time with them. Thanks to Dr. Kowalsky, my shoulder surgery had very little pain with no complications. I was back in the gym lifting weights within 8 weeks.”

D.W.5 Star Healthgrades Review

"After my injury I was referred to Dr Kowalsky by a coworker. This referral was the best I've received. He has been very attentive, patient and transparent. All of the questions that were asked were answered, and all of the answers were accurate as time passed. I would recommend that if you have an injury that he can help you with do not hesitate to get in touch with his staff. Thank you so much Doc for you kindness, patience and understanding."

 

Published Research

SLAP Tears and Lesions of the Biceps Tendon

Kowalsky, MS. “SLAP Tears and Lesions of the Biceps Tendon.” In AAOS Comprehensive Orthopaedic Review, 3rd Ed. Martin I. Boyer, MD, ed. Chicago: American Academy of Orthopaedic Surgeons, Rosemont, IL. 2019.

Rehabilitation Strategies After Shoulder Arthroplasty in Young and Active Patients

Brameier DT, Hirscht A, Kowalsky MS, Sethi PM. “Rehabilitation Strategies After Shoulder Arthroplasty in Young and Active Patients”. Clin Sports Med. 37(4): 569-583. 2018 Oct.

Classifying glenohumeral synovitis: a novel intraoperative scoring system

Davis DE, Maltenfort M, Abboud JA, Getz C, Rothman Institute Shoulder Consortium Group, Association of Clinical Elbow and Shoulder Surgeons. “Classifying glenohumeral synovitis: a novel intraoperative scoring system”. JSES. 26(11): 2047-2053, 2017 Nov.

Augmentation of a Distal Biceps Repair with an Acellular Dermal Graft Restores Native Biomechanical Properties in a Tendon Deficient Model

Conroy C, Sethi P, Macken C, Wei D, Kowalsky MS, Mirzayan R, Pauzenberger L, Dyrna F, Obopilwe E, Mazzocca AD. “Augmentation of a Distal Biceps Repair with an Acellular Dermal Graft Restores Native Biomechanical Properties in a Tendon Deficient Model”. AJSM. 45(9): 2028-2033, 2017 Jul.

Arthroscopic Treatment of Osseous Instability of the Shoulder

Porter DA, Birns M, Hobart SJ, Kowalsky MS, Galano GJ. “Arthroscopic Treatment of Osseous Instability of the Shoulder”. HSS Journal. 13: 292-301, 2017 May.

Minimally Invasive Treatment of Elbow Articular Cartilage Injury

Kowalsky, MS. “Minimally Invasive Treatment of Elbow Articular Cartilage Injury”. In Minimally Invasive Surgery in Orthopedics, 2nd Ed. Scuderi GR, Tria AJ, ed. Springer, New York. 2016.

Minimally Invasive Surgery in Orthopedics

Minimally Invasive Surgery in Orthopedics, 2nd Ed. Scuderi GR, Tria AJ, editors. Kowalsky, MS, Elbow Section editor. Springer, New York. 2016

Profile of Current Opinion on Arthroscopic Acromioplasty: A Video Survey Study

Ponzio DY, VanBeek C, Wong JC, Padegimas EM, Anakwenze OA, Getz CL, Abboud JA, ACESS Group. “Profile of Current Opinion on Arthroscopic Acromioplasty: A Video Survey Study”. Arthroscopy. 32(7): 1253-62, 2016 Jul.

Chronic Glenohumeral Dislocation: Anterior and Posterior

Kowalsky MS, Zuckerman JD. “Chronic Glenohumeral Dislocation: Anterior and Posterior”. In Clinical Decision Support: Shoulder and Elbow. Zuckerman JD, Oh L, Strauss E, ed. Decision Support in Medicine, LLC, Wilmington, DE. 2015.

Minimally Invasive Treatment of Elbow Articular Cartilage Injury

Kowalsky, MS. “Minimally Invasive Treatment of Elbow Articular Cartilage Injury”. In: Minimally Invasive Surgery in Orthopedics, 2nd Ed. Scuderi GR, Tria AJ, editors. New York: Springer, New York; 2016: 1-16.

SLAP Tears and Lesions of the Biceps Tendon

Kowalsky, MS. “SLAP Tears and Lesions of the Biceps Tendon”. In AAOS Comprehensive Orthopaedic Review, 2nd Ed. Boyer, MI, ed. American Academy of Orthopaedic Surgeons, Rosemont, IL. 2014

The relationship between scapular notching and reverse shoulder arthroplasty prosthesis design

Kowalsky MS, Galatz LM, Shia DS, Steger-May K, Keener JD. “The relationship between scapular notching and reverse shoulder arthroplasty prosthesis design”. JSES. 21(10): 1430-41, 2012 Oct.

Arthroscopic Repair of Massive Rotator Cuff Tears

Kowalsky MS, Galatz LM. “Arthroscopic Repair of Massive Rotator Cuff Tears”. In Operative Techniques: Shoulder & Elbow, Neviaser RJ et al., ed. Elsevier, Philadelphia, 2011.

Revision Arthroscopic Rotator Cuff Repair: Repair Integrity and Clinical Outcome. Surgical Technique

Kowalsky MS, Keener JD. “Revision Arthroscopic Rotator Cuff Repair: Repair Integrity and Clinical Outcome. Surgical Technique”. JBJS (Am). 93(supplement 1): 62-74, 2011 Mar.

Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction

Kowalsky, MS. Kremenic IJ, Orishimo KF, McHugh MP, Nicholas SJ, Lee SJ. “Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction”. Am J Sports Med. 38(11): 2313-19, 2010 Nov.

Traumatic posterior glenohumeral dislocation: Classification, pathoanatomy, diagnosis, and treatment

Kowalsky MS, Levine WN. “Traumatic posterior glenohumeral dislocation: Classification, pathoanatomy, diagnosis, and treatment”. Orthop Clin North Am. 39(4): 519-33, 2008 Oct.

Evaluation of suture abrasion against rotator cuff tendon and proximal humerus bone

Kowalsky MS, Dellenbaugh SG, Erlichman DB, Gardner TR, Levine WN, Ahmad CS. “Evaluation of suture abrasion against rotator cuff tendon and proximal humerus bone”. J Arthroscopy. 24(3): 329-34, 2008 Mar.

Arthroscopic Treatment of Subcoracoid Impingement Caused by Lesser Tuberosity Malunion: A Case Report and Review of the Literature

Kowalsky MS, Bell John-Erik, Ahmad CS. “Arthroscopic Treatment of Subcoracoid Impingement Caused by Lesser Tuberosity Malunion: A Case Report and Review of the Literature”. J Shoulder Elbow Surg. 16(6): e10-4, 2007 Nov-Dec.

Poster Presentations

Evaluation of Suture Abrasion Against Rotator Cuff Tendon Using a Cyclic Loading Model

Kowalsky MS, Dellenbaugh SG, Erlichman DB, Gardner TR, Levine WN, Ahmad CS. “Evaluation of Suture Abrasion Against Rotator Cuff Tendon Using a Cyclic Loading Model”. 2007 OREF Annual New York Resident Research Symposium, New York Presbyterian Hospital. New York, NY. May 25, 2007.

Cell-mediated and Humoral Immune Responses in Vaccinated Chimpanzees Challenged with HIV-1

Kowalsky MS, Leno M, Robert-Guroff M. “Cell-mediated and Humoral Immune Responses in Vaccinated Chimpanzees Challenged with HIV-1”. Summer Research Program Poster Day, NIH. Bethesda, MD. August 6, 1998.

Podium Presentations

Is Opioid-Free Surgery Possible?

Kowalsky, MS. “Is Opioid-Free Surgery Possible?”. 10th Annual ONS Foundation Medical Education Conference, ONS Foundation for Clinical Research and Education. Greenwich, CT. November 10, 2018.

Emerging Technology in Shoulder Arthroplasty

Kowalsky, MS. “Emerging Technology in Shoulder Arthroplasty”. 9th Annual ONS Foundation Medical Education Conference, ONS Foundation for Clinical Research and Education. Greenwich, CT. November 18, 2017.

Rotator Cuff Tears in the Overhead Athlete

Kowalsky, MS. “Rotator Cuff Tears in the Overhead Athlete”. 7th Annual ONS Foundation Medical Education Conference, ONS Foundation for Clinical Research and Education. Greenwich, CT. November 7, 2015.

Elbow Injuries in the Throwing Athlete

Kowalsky, MS. “Elbow Injuries in the Throwing Athlete”. Grand Rounds, Roosevelt Hospital CV Starr Hand Surgery Center. New York, NY. March 3, 2015.

Shoulder Injuries in the Overhead Athlete

Kowalsky, MS. “Shoulder Injuries in the Overhead Athlete”. 3rd Annual Orthopaedic Surgery Symposium, New York Hospital Queens Department of Orthopaedic Surgery. Queens, New York. October 4, 2013.

Acromioclavicular Joint Resection / Reconstruction

Kowalsky, MS. “Acromioclavicular Joint Resection / Reconstruction”. New Technologies in Shoulder and Elbow Surgery 2013: Arthroscopy to Arthroplasty, Yale Department of Orthopaedics and Rehabilitation Shoulder and Elbow Service. New Haven, CT. August 16, 2013.

Traumatic Anterior Glenohumeral Dislocation: Pathoanatomy and Evidence-based Management

Kowalsky, MS. “Traumatic Anterior Glenohumeral Dislocation: Pathoanatomy and Evidence-based Management”. Grand Rounds, Roosevelt Hospital CV Starr Hand Surgery Center. New York, NY. April 2, 2013.

Acromioclavicular Separation: Injury and Surgical Intervention

Kowalsky, MS. “Acromioclavicular Separation: Injury and Surgical Intervention”. Grand Rounds, Roosevelt Hospital CV Starr Hand Surgery Center. New York, NY. April 17, 2012.

Acromioclavicular Joint Separation: Evidence-based diagnosis & management

Kowalsky, MS. “Acromioclavicular Joint Separation: Evidence-based diagnosis & management”. Rehabilitation Lecture Series, North Shore-LIJ Rehabilitation Network. Syosset, NY. July 27, 2011.

The relationship between scapular notching and reverse shoulder arthroplasty prosthesis design

Kowalsky MS, Galatz LM, Shia DS, Steger-May K, Keener JD. “The relationship between scapular notching and reverse shoulder arthroplasty prosthesis design”. AAOS 2011 Annual Meeting. San Diego, CA. February 16, 2011.

Reverse shoulder arthroplasty for proximal humerus fractures

Kowalsky MS. “Reverse shoulder arthroplasty for proximal humerus fractures”. Grand Rounds, New York Hospital Queens Department of Orthopaedic Surgery. Queens, New York. September 29, 2010.

Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction

Kowalsky MS. Kremenic IJ, Orishimo KF, McHugh MP, Nicholas SJ, Lee SJ. “Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction”. AOSSM 2010 Annual Meeting. Providence, Rhode Island. July 17, 2010.

Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction

Kowalsky MS. “Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction”. Annual Alumni Meeting, Lenox Hill Hospital Department of Orthopaedic Surgery. June 8, 2009.

Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction

Kowalsky MS. “Effect of distal clavicle excision on in situ graft forces in CC ligament reconstruction”. West Point Sports Medicine Fellowship Day, United States Military Academy. June 4, 2009.

Evaluation of suture abrasion against rotator cuff tendon and proximal humerus bone

Kowalsky MS. “Evaluation of suture abrasion against rotator cuff tendon and proximal humerus bone”. Residency Graduation, Columbia University Department of Orthopaedic Surgery. June 19, 2008.

Locked Plating: Biomechanics and Clinical Applications

Kowalsky MS, Chung W, Gonzalez-Lomas G, Su BW. “Locked Plating: Biomechanics and Clinical Applications”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. June 22, 2005.

Dysfunction of the Posterior Tibial Tendon

Kowalsky MS, Hwang M, Lobo M. “Dysfunction of the Posterior Tibial Tendon”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. April 21, 2005.

Musculoskeletal Tumors: Giant Cell Tumor of Bone

Kowalsky MS. “Musculoskeletal Tumors: Giant Cell Tumor of Bone”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. February 3, 2005.

Pathology of the Achilles Tendon

Kowalsky MS, Moore D, Lobo M. “Pathology of the Achilles Tendon”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. July 22, 2004. 22, 2005

Dysfunction of the Posterior Tibial Tendon

Kowalsky MS, Hwang M, Lobo M. “Dysfunction of the Posterior Tibial Tendon”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. April 21, 2005.

Musculoskeletal Tumors: Giant Cell Tumor of Bone

Kowalsky MS. “Musculoskeletal Tumors: Giant Cell Tumor of Bone”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. February 3, 2005.

Pathology of the Achilles Tendon

Kowalsky MS, Moore D, Lobo M. “Pathology of the Achilles Tendon”. Grand Rounds, Columbia University Department of Orthopaedic Surgery. July 22, 2004.