Bind the website on the Bitrix system Medialog

Hello!
A serious project for a professional who knows her job.
The clinic has a system of recording patients and doctors prima Medialog (running on SQL)
There is a site "1C-Bitrix: Site medical organization" (extended functions) in which there is Open and documented API, which makes possible individual development and integration with other MIS (MIS is also open-source)

Need to organize the work sovmesno the operation of the site and Medialog :
- Schedule doctors
- Making an appointment
- The results
- Personal account