I assume that there are and that they are all individually fantasizing about being the company that builds that standard.

So long as health care is a product needed by every individual in the country and remains the beneficiary of some $1T in federal outlays (to say nothing of state and private costs), equilibrium will be elusive. There is far too much money to be made in the churn.

Here's an open-source one in Canada that has about a 20% market share in Ontario: http://oscar-emr.com/

Built by an engineer-turned-physician.

Health Level 7? http://en.wikipedia.org/wiki/Health_Level_7

You should checkout OpenEhr[0], "enable the development and deployment of open, interoperable and computable patient-centric health information systems"

0: http://www.openehr.org/