WebMD Health Corp. provides health information services to consumers, physicians, healthcare professionals, employers, and health plans through its public and private online portals, and health-focused publications primarily in the United States. The WebMD Health Network consists of public portals, such as WebMD Health, a primary public portal for consumers; and Medscape from WebMD, a primary public portal for physicians and other healthcare professionals, as well as third party sites, through w ...

Tenet Healthcare Corporation provides health care services primarily through the operation of general hospitals in the United States. The company owns or leases physician practices, captive insurance companies, and various other ancillary health care businesses, including outpatient surgery centers, diagnostic imaging centers, occupational and rural health care clinics. Its hospitals offer acute care services, operating and recovery rooms, radiology services, respiratory therapy services, clinic ...

Novartis AG engages in the research, development, manufacture, and sale of health care products to physicians, pharmacists, hospitals, insurance groups, and managed care organizations in the United States and Europe. The company's Pharmaceuticals division offers pharmaceuticals in cardiovascular and metabolism, oncology and hematology, neuroscience, respiratory, infectious diseases, transplantation and immunology, ophthalmics, dermatology, gastrointestinal and urinary, and arthritis and bones th ...