Patient centric hospital mobile app for Android and iOS - Prototyping and App Development

I need to get a mobile app developed for Android and iOS for a friend's hospital. The app should be patient centric. If you are a prototype developer/designer, please give cost and time estimate of prototype. If you are mobile app developer, please give cost and time estimate for app dev. The app should work on iOS and Android phones. Please mention the tools and technologies you would be using.

Features needed are mentioned in the attached file.