Website for a Medical company

I am looking for a website designer to help me create a website for my medical company. The website must have the ability for online appointment booking, a secure patient portal for accessing medical records, records of doctors and provide access to information about the services that my company provides. I want the design to be modern and minimalist, while adhering to any specific color scheme or branding guidelines that I provide. Ultimately, I want a user-friendly website that reflects the professionalism of my medical company.