Clinical data storage choices

I am a system admin for a large hospital and we are trying to utlilize OpenEMR as our choice of practice development and clinical data solution.

I am also a developer and i saw that Open EMR is a PHP /My SQL based solution.

I have developed FHIR based solutions before and have found NoSQL based databases such as MongoDB are easier to store and retrieve data. The fact that the FHIR input can be stored and queried as-is makes it easy and convenient to create applications that can be distributed.

I wanted to check if there is a adapter that will allow me to use MongoDB or any other NoSQL solution as the backend instead of MySQL.