He is rated 2.0 stars out of 5 by his patients. His areas of expertise consist of hip replacement, knee replacement, and knee arthroscopy. Dr. Liefeld's professional affiliations include UPMC St. Margaret and UPMC Passavant. He accepts several insurance carriers, including United Healthcare Platinum, United Healthcare Compass, and United Healthcare Navigate. Before performing his residency at the University of Pittsburgh Medical Center (UPMC), Dr. Liefeld attended the University of Pittsburgh School of Medicine.