Was he the guy who stabbed Tyrod Taylor in the lung, or am I mixing up my stories?
Nope, that quack came after this one... After reading about Chao, they probably upgraded, regardless of the stabbing incident:
The Chao dossier is lengthy. Two drinking-and-driving citations. A DEA investigation. Accusations that he enabled his former partner's prescription-drug habit. Four lawsuits from former Chargers he had treated. In early 2011, reporter Brent Schrotenboer, Chao's most dedicated watchdog, counted 20 lawsuits filed against Chao since 1998, with at least eight of those "settled with payouts to plaintiffs." Another was decided last summer, when Chao was found liable for negligence and fraud in the case of a 15-year-old girl, Whitney Engler, who had been disfigured in the course of Chao's treatment.
https://deadspin.com/the-chargers-doctor-is-a-drunk-quack-why-havent-they-466685771