Howard Brown Health Center

Walgreen Co. engages in the provision of pharmacy, health, and wellness solutions. Its services include pharmacy, front end, health care services, and consumer services. The company was founded by Charles R. Walgreen, Sr. in 1901 and is headquartered in Deerfield, IL.

LabCorp provides leading-edge medical laboratory tests and services through a national network of primary clinical laboratories and specialized Centers of Excellence. Recognized for our innovation, quality, and customer convenience, LabCorp delivers timely, accurate results for improved patient care. With scientific expertise in esoteric testing, genomics, and clinical and anatomic pathology, LabCorp performs more than 1 million tests on more than 370,000 specimens each day. LabCorp is a pioneer in applying advances in medicine and science to laboratory testing, with more than 35 years of experience in serving physicians and their patients. LabCorp operates a sophisticated laboratory network, with corporate headquarters in Burlington, NC, and more than 30,000 employees nationwide. Our 220,000 clients include physician offices, hospitals, managed care organizations, and biotechnology and pharmaceutical companies. Laboratory Corporation of America Holdings is listed on the New York Stock Exchange (NYSE) under ticker symbol LH

Quest Diagnostics, Inc. engages in the provision fo diagnostic testing, information and services. It operates through the Diagnostic Information Services (DIS) and All Other segments. The DIS segment offers diagnostic information services to patients, clinicians, hospitals, health plans, and employers. The All Other segment consists of risk assessment services, healthcare information technology, diagnostic products, and clinical trials testing businesses. The company was founded in 1967 and is headquartered in Secaucus, NJ.