CRM for health clinic

I am interested to build a simple CRM for a small clinic with 10 doctors. The crm should have the following functions

Cloud based
Seperate access for each doctor + 1 access for receptionist to manage all + 1 admin access
Register / edit / delete patients (individual profile for each patient)
Book appointments
Allow different doctors to access their clients and records
Create reports for invoices, receipts and debtors for each doctor separately
Issue invoices
Issue receipts
Sms / Email reminders for appointments
Ability to set therapies and prices

Could you please give me a price estimate for the above?

Thanks
Loukas