Ask HN: AWS or Azure for HIPAA compliant web form?

I need a basic HIPAA compliant web form for a medical office.

I'm looking at setting up a server on AWS or Azure that will host the form. I will use use an iframe to add the form the practice's website that will be hosted on a Digital Ocean droplet.

The Azure/AWS server won't store any data but it will be transferring it to a HIPAA compliant email address (office 365 email address).

I'm somewhat confused on what the best route to take is. I was thinking about building the form on a low resource vm to reduce cost as much as possible. If a simple vm server is all I need, are there any benefits to using AWS or Azure in terms of being HIPAA compliant? In other words, does either platform make it easier to be HIPAA compliant?