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8110 Gatehouse Road, Falls Church, VA 22042

Peter H. MacArthur, MD

A member of Inova Medical Group
The doctors of Inova Medical Group are Inova’s premier primary care and specialty physicians, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records.
Peter MacArthur, MD


Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Family Medicine, Sports Medicine

Years of Experience





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About Peter MacArthur, MD

Dr. MacArthur is a primary care physician board certified in Family Medicine with a Certificate of Added Qualification in Sports Medicine. He has a special interest in the prevention and management of all musculoskeletal and athletic injuries, as well as the use of diagnostic ultrasound, therapeutic platelet-rich plasma, prolotherapy, regenerative stem cell injections and ultrasound-guided procedures.

Dr. MacArthur currently serves as a consulting physician for the Washington Nationals. Before he joined Inova, Dr. MacArthur also served as a fellow team physician for the Washington Football Team, Major League Soccer team, D.C. United and Minor League Baseball team, Potomac Nationals.

Dr. MacArthur became interested in Sports Medicine because of his own interest in sports and active living. His goal is to help his patients of all ages return to their desired activity level as quickly and safely as possible.

A native of the DC metropolitan area, Dr. MacArthur currently resides in Capitol Hill. In his spare time he enjoys running, biking, participating in recreational sports and spending time with his family. He has completed the Baltimore Marathon and numerous other races.


  • Top Docs, Washingtonian, 2020

Blog Posts

Sports Medicine Physicians: Treating Sports Injuries as a Team. June 2019.

Cupping at the Olympics: Fishy Fad or a Therapy to Try? August 2016

Born to Swim: Does Michael Phelps’s Body Give Him A Competitive Advantage? August 2016


Late vs. Early Sports Specialization
In this episode of Inova’s “Ask the Doctor,” Sports Medicine Physician Dr. Peter MacArthur tackles the issue of early vs. late sports specialization and if it leads to overall successful performance and careers. 
Listen to this podcast 

Use of Supplements in Athletes
In this episode of Inova’s “Ask the Doctor,” Sports Medicine Physician Dr. Peter MacArthur weighs the potential benefits and motivations for using supplements vs. the risks. Listen to this podcast

Sports Nutrition and Hydration
In this episode of Inova’s “Ask the Doctor,” Sports Medicine Physician Dr. Peter MacArthur explains the principles of good nutrition for athletes and how nutritional needs change based on the intensity level of the activity. Listen to this podcast

Research and Publications

Medical Considerations for Excercise in Older Adults. January/March 2016


Medical Education

University of Maryland School of Medicine 2011


University of Virginia School of Medicine
Training Specialty: Family Medicine
6/1/2011 - 6/1/2014


Virginia Commonwealth University Fairfax Family Practice
Training Specialty: Sports Medicine
7/1/2014 - 6/30/2015

Board Certification

Family Medicine, Sports Medicine

Hospital Affiliation

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Patient Reviews

About Patient Comments

The Patient Rating score is an average of all responses to physician related questions on our nationally-recognized Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are gathered from our Press Ganey Patient Satisfaction Survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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Inova Physician Referral Services

Please make note of the following information.

This referral service is sponsored by Inova. Only physicians with appropriate medical staff privileges at an Inova affiliated hospital may participate. There is no charge or fee to you or for the participating physician for our service. Physician participation is voluntary.

Physician referrals will be based on your referral needs and preferences of location, specialty, and rotation availability of the physician.

The physicians on our referral panel are independent practitioners or physician employees. The independent practitioners are not employees, agents or representatives of Inova and are solely responsible for their provision of medical care to you.