When providers fail to obtain medical histories for new patients that's not due to any legal restrictions. In most cases they simply haven't bothered to implement the open interoperability industry standards which make it easy to exchange such data, or haven't joined networks that facilitate such exchange. For example, the majority of physicians still don't have a publicly listed DirectTrust Direct Secure Messaging address even though they could have one at a very low cost.
https://www.hhs.gov/hipaa/for-professionals/faq/authorizatio...
When providers fail to obtain medical histories for new patients that's not due to any legal restrictions. In most cases they simply haven't bothered to implement the open interoperability industry standards which make it easy to exchange such data, or haven't joined networks that facilitate such exchange. For example, the majority of physicians still don't have a publicly listed DirectTrust Direct Secure Messaging address even though they could have one at a very low cost.