ODOO 8 "OpenERP" tailoring -- 2

Dear all, I have ODOO 8 and I have a clinic with 3 doctors and owner, what I need is simply use ODOO so each doctor can simply create a profile for each patient for storing historical data, this is simply will be achieved via CRM module, but what I really need is to setup the invoicing part where to suite each doctor. Each doctor is selling his own services, and each service price is treated differently based on the patient Vs. the medical insurance company that he is dealing with , For instance Doctor-1 selling Service 1 and Service 2 Service-1 costs $10 for patients with no medical insurance, and for $15 if the patient is using Medical-Insurance-1 but the patient will pay only $5 and the Medical-Insurance-1 will pay the remaining $10 so for the invoice it will illustrate the sharing due amount by patient, the due amount by medical insurance, and simple report to show the financial breakdown for the month I guess this can be achieved by Sales Module and Invoicing Module