There are businesses like that already but most (not all) act as consulting services. Beyond regulations, there are three main problems. 1. Each organization h

There are businesses like that already but most (not all) act as consulting services. Beyond regulations, there are three main problems. 1. Each organization has their own data silo and treats it as if it were gold. Therefore it is difficult and expensive to aggregate. 2. Because the data is sensitive, there are often many contractual restrictions beyond HIPAA on how the data can be used. Anything from research purposes only to you can build a commercial product but you can only sell it to the data owner. 3. Even if an organization wanted to share data with reasonable restrictions and pricing, it is often hard to do so because their focus isn't software. So it is difficult or impossible for them to share it. Source: I made a serious attempt at a healthcare data analytics startup. It didn't work out.