Michael Murdock

Radiologix, Inc. used to provide diagnostic imaging services. It owned and operated multi-modality diagnostic imaging centers that used advanced imaging technologies such as positron emission tomography (PET), magnetic resonance imaging (MRI), computed tomography (CT) and nuclear medicine, as well as x-ray, general radiography, mammography, ultrasound and fluoroscopy. The company was founded by Derace L. Schaffer & Sami S. Abbasi in 1996 and is headquartered in Dallas, TX.

DentalOne Partners, Inc. engages in the provision of dental support services. It offers practice, marketing, and technology support; and clinical and professional development. The firm's brands include DentalWorks, SmileLogix, SmileIQ, and DentalWorks Discount Plan. The company was founded in 2011 and is headquartered in Plano, TX.

Physician Reliance Network LLC owns and operates cancer research centers. The company was founded in June 1993 and is headquartered in The Woodlands, TX.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.