ClinicGate

ClinicGate offers an easy to use Windows interface featuring an
integration of Medical Billing, Appointment Scheduling, Patient
Information, Tracking Receivables, Managing Expenses and
Generating Customized Reports.

ClinicGate is a tool for solo or 2-8 physicians that contain all the
Financial, Clinical, and Operational elements of a successful running
practice.
http://www.med-sites.com/clinicgate/clinic_gate.htm