The National Sports Medicine Institute (NSMI) began providing Orthopaedic surgical services and nonsurgical sports medicine care to Loudoun County residents in 2007. Our services include: Orthopaedic surgery, nonsurgical sports medicine services, radiology services, biologic therapy, physical therapy, nutritional counseling, and sports performance training, all in one location.


"The mission of NSMI is to establish in the field of Sports Medicine, a local, national and international leadership role, by providing the highest standard of sports Orthopaedic care combined with outstanding programs of education, research and sports medicine development for the benefit of all."

Dr. David C. Johnson - Founder


The National Sports Medicine Institute Staff - December 2020

Our business began as a result of a recognized need for higher level sports medicine care in Loudoun County’s rapidly growing athletic community.  We are founded on the principles of integrity, compassion, and quality of care through evidence-based practice, promotion of physical wellness and improved mobility.  Our commitment to athletic injury prevention as well as patient support during treatment and recovery from injury remains paramount to our core mission.  We care for all athletes, ranging from elite professional athletes to the recreational, weekend warriors, pediatric, high school, college, and senior athletes. NSMI has evolved into what it is today through dedicated teamwork from our staff, patients, and community partners towards our mission.

Our Mission

The goal of NSMI is to establish in the field of Orthopaedic Sports Medicine, a local, national and international leadership role, by providing the highest standard of sports Orthopaedic care combined with outstanding programs of education, research and performance enhancement to benefit athletes at all levels of competition. The clinic can care for the most distinguished elite athlete and offer the same level of care to the recreational athlete as well as those desiring mobility and active lifestyles.

Our Philosophy

Our practice is founded on achieving excellence in Orthopaedic Surgery, demonstrating integrity in our physician-patient relationships, providing compassionate care for our injured clients, and promoting wellness as a priority in life. We strive for teamwork among health care professionals to optimize both non-surgical and surgical outcomes.