Patient management services for house call practitioners, namely, providing temporary use of online non-downloadable computer software for such activities and functions as scheduling of house call visits, paperless patient information and document management, remote access to unified email, voicemail and fax communications, support for portable medical and diagnostic devices, electronic retrieval of lab outcomes and analyses, electronic ordering of prescriptions, home services, tests and consultations, centralized storage and backup of patient information, centralized authentication that supports biometric fingerprint readers, billing compliance, HIPAA compliance and audit trails