There is a variety of evidence that suggests that patient satisfaction (and customer satisfaction in general) is correlated to cost of the service. This is why clinic doctors and doctors who take a lot of indigent patients, unsurprisingly, have lower patient satisfaction surveys. There are several ways to improve patient satisfaction that will materially make an impact (and not just be bureaucratic lip service), and one key way is to filter out indigent patients through insurance selection, membership fees, and geography.
There has also been a lot of work showing that patient satisfaction is not correlated with health outcomes.
If medical services are provided uniformly without the above considerations, individuals who tend to give negative ratings will end up getting less access to care. A different way to say this is he's a bit cavalier about the review because unlike a restauranteur (who also has mortgage to pay), the supply-demand curve favors him tremendously. He doesn't have to care about reviews because the reviews don't matter. There aren't enough neurologists in Scottsdale Arizona that no matter how ****ty you are in customer service you'll fill your practice. And at the end of the day, we can just assume that it's not gonna be ****tier than your usual Medicaid clinic.