A similar red flag should have been raised when dialysis giant DaVita Inc. purchased HealthCare Partners for a staggering $4.4 billion. This was the largest healthcare merger in U.S. history which was made possible by HCP's aforementioned unlawful activities and the likely non-disclosure of material evidence during the merger. As a result, Davita HealthCare Partners is one of the largest health care groups in the country yet they continue to operate without a license and profit handsomely for it.