Hello,
I am en experienced Android Developer. I have developed a quite few work on android. I have experience on JSON, REST API as well. I am experienced to make API by myself using php. I believe i can fulfil any job related android. I have some android work already published on play store. They are API based and local data based. Hope to get positive nuts from you. I have not made any app for doctor. But i believe i can do it easily with the help of API.