By Rebecca Coelius, MD

Rock Health, the digital health incubator based in San Francisco, has released its Digital Health 2012 Midyear Report with very good news for health tech entrepreneurs.

As of this month, cumulative investments for 2012 come in at 675 million dollars, or 73% more than this time last year.

The report notes that 68 companies raised more than 2 million dollars from 92 different VC firms thus far in 2012, with Castlight (100 million), GoHealth (50 million), Kinnser Software (50 million) and Airstrip (49 million) taking home the majority of the investments. Several startups also closed significant seed rounds, including Rock Health’s own incubator-graduate Cellscope.

In addition to periodic reports, Rock Health also maintains a comprehensive funding database worth following.

Rebecca Coelius, MD received her Medical Degree from the University of California – San Francisco. She writes and speaks frequently on emerging opportunities at the intersection of medicine, technology, and policy. Follow her on Twitter @RebeccaCoelius