Daniel J. Schaefer

MQ Associates, Inc. operates as a holding company with interest in diagnostic imaging services. It operates independent, fixed-site, outpatient diagnostic imaging centers in the U.S. through its subsidiaries. The firm's centers provides services using a variety of technologies including magnetic resonance imaging, computed tomography, nuclear medicine, general radiology, ultrasound, bone densitometry, and mammography. The company was founded in 1993 by John K. Luke and is headquartered in Alpharetta, GA.

MedQuest, Inc. owns and operates diagnostic image centers. The company provides diagnostic imaging services using technologies including magnetic resonance imaging, computed tomography, nuclear medicine, general radiology, bone densitometry, ultrasound, and mammography. It is headquartered in Alpharetta, GA.

Span-America Medical Systems, Inc. engages in the manufacture and market products to the healthcare industry for the prevention and treatment of pressure ulcers. It offers surfaces, beds, lifts, seating, positioners, skin care, fall protection, and furniture products under PressureGuard, Geo-Mattress, Span+Aids, Span+Aids, and Selan brands. The company was founded by Donald C. Spann on September 21, 1970 and is headquartered in Greenville, SC.

Part of Alpha Pro Tech Ltd., Alpha ProTech Engineered Products, Inc. manufactures and distributes protective apparel, infection control masks, and building and roof products. The company is based in Valdosta, GA.

MedQuest Associates, Inc. operates a network of diagnostic imaging facilities and provides hospital radiology services. It offers arthrogram, bone densitometry, computerized tomography scan, diagnostic x-ray, fluoroscopy, magnetic resonance imaging, nuclear medicine, ultrasound and ultrasound, mammography and osteoporosis screening. The firm also provides services, including outpatient imaging management and joint venture, referring physician engagement, and service line performance consulting. The company was founded in 1993 and is headquartered in Alpharetta, GA.