Actually, health data is even more lucrative than credit card numbers on the black market. Credit card numbers only go for about $1 to $2. PHI sells for $20 to $200, depending on the type of patient data.
Why is healthcare data so much more profitable?
If you steal credit card data, you can make a purchase. If you steal health care data, you can create an identity. Recovering from identity theft is a lot harder and costlier than recovering from credit card fraud.