"Integrative medicine" is just another term invented for "alternative medicine". A few respectable universities have centers/institutes for this, but it is almost always the result of a specific effort on the part of big money donors.

I think, as many others have mentioned, that more data is becoming available, largely due to the shift to electronic medical records. As a physician, especially if you're involved in research, being able to make sense of that data will be very valuable.

I would suggest checking out http://forums.studentdoctor.net if you don't already read that forum.