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Timothy Hartshorn, M.D.

Board-Certified Orthopedic Surgeon with over 10 years of operative experience

Harvard fellowship-trained

Published author, researcher, course instructor, and medical expert witness

Specific interest in regenerative medicine, joint preservation, cartilage restoration procedures, and biologic therapies

Previous professional baseball player with experience providing team coverage in both college and professional sports

Board-Certified Orthopedic Surgeon with over 10 years of operative experience

Orthopedic Surgeon at Heart

Dr. Hartshorn is a Harvard fellowship-trained orthopedic surgeon specializing in arthroscopic and reconstructive surgery.  He has authored book chapters, published articles in the peer-reviewed literature, and has received multiple awards. His passion for his profession, however, was evident at much earlier time.

At the age of three, Dr. Hartshorn exemplified an interest in the field of Orthopedics by memorizing the names of numerous bones.  In fifth grade, he carried an anatomy book in his school backpack to read in his free time.  In high school, he shadowed surgeons to learn more.  He has always had a genuine interest in what he does which is easily evident to any patient he treats.


His approach to care is centered around getting to know each patient.  The same diagnosis can typically be treated many different ways, and each individual has different demands, expectations, and goals that require careful assessment in order to provide an accurate and thoughtful recommendation for each individual. 


Currently, Dr. Hartshorn’s practice involves both primary and minimally-invasive procedures as well as complex, revision procedures.  He is conservative in nature and prefers non-surgical options when possible.


He is passionate about keeping people active and was the captain of the nationally-ranked Baylor Bears NCAA Division 1 baseball team.  He subsequently played 2 seasons professionally for the Fort Worth Cats of the independent Central Baseball League where he earned Rookie of the Year honors.  Over the years he has served as a team physician for both college and professional sports.

When not working, he enjoys spending his time with his family traveling, being outside, and participating in a multitude of kids' activities.

Education and Training


Medical School



Certifications and Licensure

  • Board-Certified by the American Board of Orthopedic Surgery

  • Massachusetts State Medical License

Hospital Affiliations

  • St. Elizabeth's Medical Center

  • Newton-Wellesley Hospital

  • New England Baptist Hospital

  • Norwood Hospital

  • Beth Israel Deaconess Hospital - Needham

Recent Publications

  • Li X, Eichinger JK, Hartshorn T, Zhou H, Matzkin EG, Warner JP.  A Comparison of the Lateral Decubitus and Beach-Chair Positions for Shoulder Surgery: Advantages and Complications.  J Am Acad Orthop Surg.  2015 Jan;23(1):18-28.

  • Hartshorn T, Ren J, Yang C, Vangsness CT.  Imaging of the Rotator Cuff using Optical Coherence Tomography (accepted and awaiting publication)

  • Hartshorn T, Otarodifard A, White E, Hatch GF.  Radiographic Landmarks for Locating the Femoral Origin of the Superficial Medial Collateral Ligament.  AJSM, Vol. 41, Issue 11, November 2013, pp. 2527-32.

  • Schein A, Matcuk G, Patel D, Gottsegen CJ, Hartshorn T, Forrester D, White E.  Structure and Function, Injury, Pathology, and Treatment of the Medial Collateral Ligament of the Knee.  Emerg Radiol. 2012 Aug 14.

  • Click here to see Pubmed links.

Dr. Hartshorn performs an injection
Even Superman can break a bone
Team Physician for L.A. D-Fenders
Dr. JP Warner, Fellowship Director
Operating in Mbarara, Uganda
USC Mentors
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