USMD Holdings, Inc. is a physician-led integrated health system. The Company, through its subsidiaries and affiliates, provides healthcare services to patients, and management and operational services to healthcare providers. It operates in physician-led integrated health system segment. It provides healthcare services to patients in physician clinics, hospitals and other healthcare facilities, including cancer treatment centers and anatomical pathology and clinical laboratories. Its subsidiary owns and operates a multi-specialty physician group practice (USMD Physician Services) in the Dallas-Fort Worth, Texas metropolitan area. USMD Physician Services forms the core of the physician-led early-stage integrated health system based on a physician-centric approach to manage an individual's health and associated healthcare. It owns and operates over one Independent Diagnostic Testing Facility (IDTF) and approximately one cancer treatment center.