I broke part of my hand last October after slipping and falling.
At the request of my new insurer, I went to my local urgent care. The rep for my insurer swore up and down that they had an X-ray machine and could diagnose my problem quickly, as well as immediately after refer me to a local hand specialist at the local University's hospital. After my experience, I realized that nothing the rep said was true.
The nurse practitioner at the urgent care facility said nothing was wrong with my hand (despite it being black & blue, and having all the hallmarks of a broken hand). He refused to refer me to a specialist or for an X-ray unless I took an HIV/AIDS test. He started asking me several questions about my sexuality and relationship status - I am not sexually active (sadly) nor am I in the demographic with a higher likelihood of coming into contact with the HIV virus, so I told him as much and declined the test. I was there because I broke my fucking hand. He kept insisting that I needed to take the tests. I walked out of the facility pissed off and without any progress on my hand. Several hours wasted. The guy's assistant called me the next day pleading me to come in for tests, and I reiterated that all I wanted was to get an X-ray like I was promised by my insurer, and to see someone who knew what they were talking about.*
If your tire pops, your mechanic shouldn't say "nothing wrong with your tires, it's your exhaust you need to worry about" while he's wearing a shirt with an exhaust maker's logo on it.
I clicked on the link you posted. I entered the nurse practitioner's name, and surprise surprise, he's gotten over $3k in the last year from ViiV Healthcare, a company specializing in the research and development of HIV/AIDS testing equipment and drug development. Not an exorbitant amount of money at all, but the dude is ethically compromised.
That needs to be straight up illegal with serious repercussions - for both those who offer the kickback, and those who accept it.
*FWIW, I spoke with a physical therapist not too long later, a guy who specializes in sports injuries (particularly from basketball as he's a former pro hooper himself), and within about 10 seconds of examining the area of injury said "yeah, you broke your hand. I see this frequently. Do this every day with your hand, and come see me in 2 months if nothing works".