Well, actually HIPAA stands for "Health Insurance Portability and Accountability Act" - it's specifically about making health records portable.
The security provisions were it's more minor, yet, best know part.
No, it's about making health insurance portable. [0] (The Security and Privacy pieces—as well as the IT standards bits—are part of the one “accountability” piece of the title, and largely irrelevant to the “portability” piece.)
Health records, in terms of interoperability, weren't a big focus in the legislation (they became a bigger focus with meaningful use and related rules in the ACA.)
EDIT: to be fair, though, access to your own records is also part of the accountability part, which isn't exactly portability of records, but it's related.
[0] See, e.g , http://www.investopedia.com/terms/p/portability.asp
HIPAA requires that our medical data is secured when stored at a medical facility, but I still have to drive over with CDs and printed X rays if I have to go to different doctors and specialists. Doctor's referrals are still paper printouts, and you have to show up early to any doctor as a new patient, and fill out the same form about your medical history all over again. Things are still faxed, sometimes emailed.
This problem is still completely unsolved in the US. The closest thing is maybe if you're going across doctors in one hospital or hospital network, then your records are electronically "transferred"