CRM software with unique functionality

I'm looking to build CRM software that will allow providers to manage patients within a medical office (scheduling, communications, task management, etc). It will include typical CRM functionality but more specific functionality re: patient management. The CRM work is easy for most developers but the patient functionality is foreign to 99% of developers. However, I can easily walk you through that part.

Of course, there are many open source CRM solutions available but I really want to build my own. Many do not have phone integration which is a must as it's the most difficult aspect of managing communications within a medical office. I have a number of suggested solutions that I have yet to fully explore (Zoho, Salesmate, CallRail, FreePBX, etc). I'm told that Ring Central has a strong history in the medical field and that they have the best API on the market (per an independent person who has worked with several). Furthermore, they apparently have an almost "ouf of the box" solution though some additional development may be required.

I would like to start with the patient management/clinical portion first since it's unique and foreign to most developers. It's essentially a tool to manage a patient's medical problems. It will allow these problems to be displayed in several ways and then allow other elements to join to print reports as needed per outside entities. It also will allow the user to quickly generate reports/notes.

With respect to technology, I was considering an all javascript solution so I was thinking Vue/React on the front end w/ Node and MySQL. Some have said that using Node was overkill for this project as at most there would only be a few hundred users. Your thoughts are welcome. Regardless, this project will require constant revision and it needs to be developed with flexible technology to allow such.

For those who are interested I have created a specification document that details the project. I will send the link after further discussion to potential candidates.

I could not put everything I wanted here due to the character limitation so please see attachment.

Thanks for your interest in this project. Again I'm looking for a long term partner.