Health, medical, hospital, pharmaceutical and prescription drug insurance underwriting, including for Medicare beneficiaries; administration and organizing of prepaid and/or preferred provider and/or managed care, health, medical, hospital, pharmaceutical, prescription drug plans, namely, claims administration and processing, enrolling, providing eligibility and benefit information, claims remittance advising, claims and benefits reporting; administering and underwriting health care coverage through contracted relationships with subscribers and professional clinical, hospital, nursing home and other health care providers; providing information, data, reports and analysis pertaining to the underwriting of health, medical, hospital, pharmaceutical and prescription drug insurance and pertaining to the administration and organizing of prepaid and/or preferred provider health, medical, hospital, pharmaceutical, prescription drug plans, and related healthcare plans and networks