Reddit mentions of Healthcare Information Security and Privacy

If HIPAA is the focus, study the HCISPP material, specifically the books from the supplementary references. Really, you probably only need to read Sean Murphy's HIPAA book (https://www.amazon.com/Healthcare-Information-Security-Privacy-Murphy-ebook/dp/B00LI367Q4/ref=sr_1_3?ie=UTF8&qid=1536086450&sr=8-3&keywords=hcispp) for a high-level overview, then focus on becoming an expert on the HITRUST CSF Assurance Program. There are a ton of free references available on how to implement healthcare-specific security controls and you'll learn a lot about ISO 27001/02 and SOC 2 in the process. Just google HITRUST CSF v9 and Healthcare Sector Cybersecurity Framework Implementation Guide to get started.

From where you are, it doesn't sound like studying CRISC is the best use of your time, especially if you're not even planning to test for it.