Network: Your peers, friends, even your healthcare providers can provide perspective and introduce you to others to build relationships in the healthcare industry.
Identify areas of interest: narrow down the scope of your interest in healthcare by focusing on 2-3 verticals, which may include medical devices, hospital administration, biotech, international aid agencies, medical group management, health insurance, etc.
Stay up-to-date with the news: Especially with changes in healthcare policy, the way services are provided may change. Set up Google Alerts for healthcare (and the company of interest in particular).
Dig into interesting companies and segments: Read 1-2 brokerage reports on your target healthcare segment or potential target companies, and identify key products and trials investors are monitoring
Expand your technical knowledge: Every month, check (or if you dare, subscribe) to a journal like the New England Journal of Medicine, Lancet, or other peer-reviewed medical/healthcare journal (make sure it is aligned to your target area)