Dr. McMahon's average rating from his patients is 4.5 stars out of 5. Areas of expertise for Dr. McMahon include leg fracture, arthroscopic surgery, and forearm fracture. He accepts Blue Cross/Blue Shield, Coventry, and Coventry Health Care Plans, in addition to other insurance carriers. He obtained his medical school training at Georgetown University School of Medicine and performed his residency at Walter Reed National Military Medical Center. He is conversant in Spanish. Dr. McMahon's hospital/clinic affiliations include MedStar Georgetown University Hospital and MedStar Montgomery Medical Center. He has an open panel.