How is your product mission critical? What pain does this solve for them? Is it hippa compliant? Is it secure? How is it better than Doximity for secure doc to doc communications( which is free, by the way) how is it better than the 4 or so other secure physician to physician communication platforms out there? Take a look at mobihealth news, several are advertising there. How will your product improve patient outcomes? Once you have answered these questions, Sound like you need a couple of cmo's to interview asking them about their pain points! Keep in mind inbound marketing to show expertise and engage those cmo's even ask which features they'd like to see!

I'm happy to help, let me know!