Daniel Virnich

HealthCare Partners LLC manages the administrative systems of HealthCare Partners Medical Group. The firm also provides support services to its independent physician association (IPA) network. It also offers strategic planning, implementation, and development of integrated delivery systems, and offers expertise in IPA and medical group formation. The company was founded in 1992 and is headquartered in El Segundo, CA.

Team Health Holdings, Inc. is a leading physician practice committed to quality and safety. Founded in 1979 by H. Lynn Massingale and Robert E. Sweeney, the company is headquartered in Knoxville, TN and has subsidiaries in Cayman Islands and United States. The company empowers clinicians to act on what they believe is right, invests in learning and development to promote growth in the clinical field, and fosters an environment where continuous improvement is a shared priority. With over 15,000 affiliated healthcare professionals and advanced practice clinicians, TeamHealth offers a wide range of medical solutions to more than 2,700 acute and post-acute facilities and physician groups nationwide, including emergency medicine, hospital medicine, critical care, anesthesiology, orthopedic surgery, general surgery, obstetrics, acute behavioral health, post-acute care, post-acute behavioral health, ambulatory care, virtual care, and medical call center solutions. The CEO is Leif M. Murphy.

DaVita Medical Group operates and manages medial groups and affiliated physician networks. The company headquartered in Denver, CO.

TOI Management LLC engages in the provision of business support services. The company is headquartered in Cerritos, CA.

The Oncology Institute of Hope & Innovation operates as a private practice cancer center. It focuses on cancer prevention, diagnosis, and education. The firm's services include chemotherapy education, comprehensive lab testing, pain management, financial consulting, dietary counseling, nutraceuticals, and clinical trails. The company was founded by Richy Agajanian and Hilda Agajanian in August 2007 and is headquartered in Cerritos, CA.

Cortica Healthcare, Inc. operates neurological clinics. It offers in-home, in-clinic, and telehealth services. The company was founded by Neil Hattangadi and Suzanne Goh and is headquartered in San Diego, CA.