Application service provider (ASP) featuring computer software for providing, standardizing, integrating, matching, verifying, cleansing, augmenting and actively managing medical provider information and data for use in the field of administering and processing of employer and employee insurance and benefits, administering and processing insurance carrier services, administering and processing invoices and payments to and from benefit providers and insurance companies, and administering and processing employer and employee insurance and benefits for use by employers, third party administrators, and medical and dental service providers