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Jonathan T. Nassos, M.D.

Board Certified Orthopedic Surgeon & Sports Medicine

Dr. Jonathan Nassos is a board-certified, fellowship-trained orthopaedic surgeon who specializes in the surgical and non-surgical treatment of musculoskeletal disorders and injuries, including arthroscopic surgery, joint replacement, and orthopaedic trauma. He greatly values the individual needs of each patient and is dedicated to prove the highest quality of care for his patients. He received his bachelor’s degree from the University of Illinois at Urbana-Champaign, his M.D. from Loyola University Chicago Stritch School of Medicine, and completed his residency in orthopaedic surgery at Loyola University Medical Center.

Following residency, he completed an orthopaedic sports medicine fellowship at a prestigious Kerlan-Jobe Orthopaedic Clinic in Los Angeles, California. During that time , he worked as an assistant team physician for the Los Angeles Lakers, Dodgers, Kings, Sparks, Anaheim Ducks, and Loyola Marymount University. He is active in research which he has been presented both at national and international scientific meetings. He is currently an Associate Master Instructor of Arthroscopy for the Arthroscopy Association of North America, teaching other orthopaedic surgeons about cutting-edge arthroscopic surgical procedures. He is a Fellow of the American Academy of Orthopaedic Surgeons. Dr. Nassos lives in Los Angeles with his wife Jenni, two daughters, and two dogs. He spends his free time with the family and enjoys playing tennis when he can get onto the court.

Know more about Dr. Jonathan T. Nassos

Education

2009-2010

Orthopaedic Sports Medicine Fellowship
Kerlan-Jobe Orthopaedic Clinic
Los Angeles, CA

2004-2008

Orthopaedic Surgery Resident
Loyola University Chicago Orthopaedic Surgery Residency Program
Training Sites:

  • Loyola University Medical Center, Maywood, IL
  • Edward Hines, Jr. VA Hospital, Hines, IL
  • Shriner’s Hospital for Children, Chicago, IL
  • Surgical Mission Trip, Buga, Colombia, S.A. 2006, 2007

2003-2004

Surgery Internship
Loyola University Chicago Department of Surgery

Training Sites:

  • Loyola University Medical Center, Maywood, IL
  • Edward Hines, Jr. VA Hospital, Hines, IL
  • Resurrection Medical Center, Chicago, IL

1999-2003

Doctor of Medicine
Loyola University Chicago – Stritch School of Medicine
Training Sites:

  • Loyola University Medical Center, Maywood, IL
  • Hines / VA Hospital, Maywood, IL
  • Resurrection Medical Center, Chicago, IL
  • MacNeal Hospital, Berwyn, IL

1995-1999

Bachelor of Arts, Economics, Distinction in Economics
University of Illinois, Urbana-Champaign, IL

Professional Appointments

Attending Staff Physician

2013-Present Cedars-Sinai Medical Center, Los Angeles, CA
Glendale Adventist Medical Center, Los Angeles, CA
Southern California Hospital, Culver City, CA

2012-Present Mission Community Hospital, Panorama City, CA

2018-Present DOCS Surgical Hospital, Los Angeles, CA

2012-2019 Olympia Medical Center, Los Angeles, CA

2008-2012 Elmhurst Memorial Hospital, Elmhurst, IL
Alexian Brothers Medical Center, Elk Grove Village, IL

2008-2010 Swedish Covenant Hospital, Chicago, IL

2009-10 Faculty Fellow
USC University Hospital, Los Angeles, CA

2008-09 Consultant
Edward Hines, Jr. VA Hospital, Hines, IL

Employment

2012-Present Nassos Orthopaedic Surgery and Sports Medicine
CEO/Attending Physician
Los Angeles, CA

2008-2012 G & T Orthopaedics and Sports Medicine
Attending Physician
Chicago, IL

2009-10 Orthopaedic Sports Medicine Fellow
Kerlan-Jobe Orthopaedic Clinic
Los Angeles, CA

2004-08 Orthopaedic Surgery Resident
Loyola University Chicago Orthopaedic Surgery Residency Program
Maywood, IL

2003-04 Surgery Intern
Loyola University Chicago Department of Surgery
Maywood, IL

2002-03 Loyola University Chicago Stritch School of Medicine
Medical Student Tutor

1997 Hospital Administrative Intern
Resurrection Medical Center, Chicago, IL

Honors/Awards/Grants

2008 JBJS/OREF Journal Club Grant

2008 Schwartz Traveling Fellowship

2008 Excellence in Research Award – Loyola University Chicago,
Department of Orthopaedic Surgery

2008 OTA Resident Scholarship

2007 AANA Resident Scholarship

2006 Magis Award – Loyola University Medical Center

2005 Unrestricted Resident Research Grant - Medtronic

2003 Miller Scholarship –Loyola University Chicago Stritch School of Medicine

1999 Omicron Delta Epsilon – International Honor Society for Economics

1999 Dean’s List – University of Illinois at Urbana-Champaign

Publications

  • Nassos JT, ElAttrache NS, Angel MJ, Tibone JE, , Limpisvasti O, Lee TQ. Optimizing a water-tight construct in arthroscopic rotator cuff repair. J Shoulder Elbow Surg. 2012 May;21(5):589-96.
  • Nassos JT, Sullivan, J, ElAttrache NS, Mejia MR, Yocum LA. Return to play in overhead athletes following dominant arm glenohumeral dislocation.
  • Nassos JT, Ghanayem AJ, Sasso RC, Tzermiadianos MN, Voronov LI, Havey RM, Rinella AS, Carandang G, Patwardhan AG. A biomechanical evaluation of segmental occipito-atlanto-axial fixation techniques. Spine. 2009 Dec 1;34(25):2740-4.
  • Nassos JT, Chudik S. Arthroscopic rotator cuff repair with biceps tendon augmentation. Am J Orthop. 2009 Jun 38(6):279-81.
  • Nassos JT. Ghanayem AJ. Segmental stabilization of the occipitocervical junction with respect to the vertebral artery. Cont Spine Surg. 2007; 8: 1-6.
  • Nassos J, Rabin S. The medical liability crisis. Loyola Orthop J. 2005;14:64-7.
  • Nassos JT, Hopkinson WJ, Pinzur MS, Stanley SK. Lower extremity amputee functional outcomes after lower extremity fractures. Loyola Orthop J. 2004; 13:74-7.
  • Bush-Joseph C, Berger R, Virkus W, Nassos J. Selective Exposures in Orthopaedic Surgery: The Knee. (Digital media), American Academy of Orthopaedic Surgeons, Rosemont, IL. 2002.

Presentations/Abstracts

  • Shoulder Injuries, Medlegal Seminar, Glendale, CA, September 30, 2015
  • Knee Pain. Community Seminar, Los Angeles, CA, June 3, 2015
  • Knee Arthritis. Community Seminar, Los Angeles, CA, December 6, 2012.
  • The Knee. WCLA Medical Seminar, The Chicago Cultural Center, Chicago, IL, September 16, 2011.
  • Optimizing a Water-Tight Construct in Arthroscopic Rotator Cuff Repair. Nassos JT, ElAttrache N, Angel M, Tibone JE, Limpisvasti O, Lee TQ. American Shoulder and Elbow Surgeons Closed Meeting. Scottsdale, AZ, October 20-23, 2010.
  • Return to play in overhead athletes following dominant arm glenohumeral dislocation. Nassos JT, ElAttrache NS, Mejia MR, Yocum LA. Kerlan-Jobe Alumni Research Conference, Providence, RI, July 16, 2010.
  • Optimizing a water-tight construct in arthroscopic rotator cuff repair. Nassos JT, ElAttrache NS, Angel MJ, Tibone JE, Limpisvasti O, Lee TQ. Kerlan-Jobe Alumni Research Conference, Providence, RI, July 16, 2010.
  • Primary Osteoarthritis of the Elbow. Kerlan-Jobe Orthopaedic Clinic, Los Angeles, CA. April 28, 2010.
  • Valgus Instability in the Overhead Athlete. Kerlan-Jobe Orthopaedic Clinic, Los Angeles, CA. December 10, 2009.
  • The Middle Age Workout. Elmhurst Center for Health, Elmhurst, IL. October 7, 2008.
  • Massive Rotator Cuff Tears. Loyola University Medical Center, Maywood, IL. Department of Orthopaedic Surgery and Rehabilitation, Grand Rounds, June 5, 2008.
  • Valgus Instability of the Elbow in the Throwing Athlete. Loyola University Medical Center, Maywood, IL. Department of Orthopaedic Surgery and Rehabilitation, Grand Rounds, March 15, 2007.
  • Evaluation of Segmental Occipito-Atlanto-Axial Fixation Techniques with Respect to Risk to the Vertebral Artery. Ghanayem A, Nassos J, Tzermiadianos M, Voronov L, Patwardhan A. Biomechanical Cervical Spine Research Society-European Section, Berlin, Germany, May 17 – 19, 2006.
  • A Biomechanical Evaluation of Segmental Occipito-Atlanto-Axial Fixation Techniques with Respect to Risk to the Vertebral Artery. Nassos J, Tzermiadianos M, Voronov L, Ghanayem A, Patwardhan A. American Spinal Injury Association Annual Meeting, Boston, June 25-28, 2006.
  • A Biomechanical Evaluation of Segmental Occipito-Atlanto-Axial Fixation Techniques with Respect to Risk to the Vertebral Artery. Nassos J, Tzermiadianos M, Voronov L, Ghanayem A, Patwardhan A. Spine Across the Sea Annual Meeting, Maui, Hawaii, July 23-27, 2006.
  • A Biomechanical Evaluation of Segmental Occipito-Atlanto-Axial Fixation Techniques with Respect to Risk to the Vertebral Artery. Nassos J, Sasso R, Ghanayem A, Tzermiadianos M, Voronov L, Patwardhan A. NASS Annual Meeting, Seattle, Washington, September 26-30, 2006.

Professional Memberships/Committees

2021 AANA Learning Center Committee

2017 – Present American Journal of Sports Medicine Reviewer

2015 - 16 Orthopaedic Consultant – Los Angeles Sparks

2011 – 12 Orthopaedic Consultant – Chicago Rush Arena Football Team

2009 - 10 Assistant Team Physician – Los Angeles Lakers

2009 – 10 Assistant Team Physician – Los Angeles Dodgers

2009 - 10 Assistant Team Physician – Los Angeles Kings

2009 – 10 Assistant Team Physician – Los Angeles Sparks

2009 – 10 Assistant Team Physician – Anaheim Ducks

2009 – 10 Assistant Team Physician – Loyola Maramount University

2013 – Present Los Angeles County Medical Association - Member

2013 – Present California Medical Association – Member

2015 - Present California Orthopaedic Assocation, Member

2004 - Present American Academy of Orthopaedic Surgeons – Active Fellow

2007 - Present Arthroscopy Association of North America- Active Member

2009 - Present Associate Master Instructor of Arthroscopy, AANA

2009 - Present American Orthopaedic Society for Sports Medicine – Active Member

2007 - 08 Loyola University Chicago Stritch School of Medicine – Committee on Admissions

2007 - 08 Assistant Team Physician - Loyola University Chicago

2007 - 08 Assistant Team Physician – Lewis University

Licensure/Certifications

2015 Subspecialty Certificate – Orthopaedic Sports Medicine

2015 Expert Reviewer – Medical Board of California

2015 Qualified Medical Evaluator – State of California

2012 Board Certified – American Board of Orthopaedic Surgery

2009-Present California License A108187

2005-Present Illinois License 036114903

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