Physician referral services; health care utilization, review and cost containment services, all in the healthcare field; medical cost management and cost management for health benefit plans of others; business administration of acute medical care programs and services provided to Medicare beneficiaries and others who live in nursing homes, hospices and convalescent homes; direct physician referral services; cost management of health benefit plans covering prescription drug benefits, dental care, vision and hearing care, discount eyeglasses and medical transportation, namely costs associated with ambulance and medical evacuation transportation and care, hospice and convalescent care

Underwriting medical insurance services in the nature of health maintenance organizations and preferred provider organizations; administration of health benefit plans of others; administration of insurance claims for health maintenance organizations and preferred provider organization healthcare providers; administration of prescription drug benefit plans of others; medical insurance case and utilization review and insurance claims adjustment services for healthcare purchasers and payors and providers and Medicare beneficiaries; administration of health insurance plans for eligible Medicare beneficiaries

Medical services, namely, physician groups offering primary medical care services via health maintenance organizations and preferred provider organizations' medical programs; chronic care medical services; medical clinics, pre-surgical evaluation clinics, comprehensive care clinics, diabetes and wound clinics, anticoagulation clinics, podiatry services; hospitals; providing in-home and out-patient physician and nursing care services; emergency medical response services; medical evaluation services, namely, functional assessment programs for patients receiving medical rehabilitation services for purposes of guiding treatment and assessing program effectiveness; providing hospice and convalescent home care services; hospitalist programs, namely, providing physician services by physicians who specialize in treating the hospitalized patients of other physicians; and physical therapy, all the foregoing excluding clinical services for patients who require immunoglobulin therapy