Health, medical, hospital, pharmaceutical and prescription drug insurance underwriting; administration of prepaid, preferred provider, health maintenance organization and managed care health, medical, hospital, pharmaceutical, prescription drug plans and health savings accounts and similar related healthcare plans and associated health plan provider networks, featuring insurance-related claims administration and processing, enrolling, and providing insurance eligibility and benefit information, claims remittance advising, claims and benefits reporting; providing insurance information and data pertaining to the underwriting of health, medical, hospital, pharmaceutical and prescription drug insurance and pertaining to the administration and organizing of prepaid, preferred provider, health maintenance organization and managed care health, medical, hospital, pharmaceutical, prescription drug plans and health savings accounts and similar accounts and related healthcare plans and networks; administering and underwriting health care insurance coverage through contracted relationships with subscribers and professional clinical, hospital, nursing home and other health care providers