Chiropractor Payment Plan Automation

I am looking for a developer to create a tool that simplifies financial arrangements for my chiropractic patients. The tool should calculate patient payment plans automatically and generate printable financial agreement forms. I prefer this tool to run on a computer in my clinic. It should utilize various inputs for payment calculations, including total treatment cost, down payment, number of payments, insurance amount, patient share, payment frequency, treatment visits, cost per visit, and financing charges. Ideal skills include experience in software development, user-friendly interface design, and knowledge of financial calculations.