Hello- I've started a new medical billing business, formed a business relationship with a clearinghouse whom I'll be submitting electronic claims to, signed billing agreements with 2 new doctor clients, and have begun submitting claims on there behalf. My billing contract states my company will be paid 7% of all paid claims (for cash customers I collect from, and paid insurance payments). All has gone well so far, I plan to send invoices to my Dr. clients once a month. Questions: should I send out my invoices based upon 1. What my doctor clients have has actually recieved in the 30 day billing cycle? (If so, how can I be sure what my Dr. clients have actually recieved in the last 30 days?) or Should I send my invoices based upon what the insurance companies have approved for payment to the Doctor?