That's significantly more than my doctor - who is part of a major hospital/healthcare network and works primarily with insured patients - charges out-of-pocket...
(I know this because they screwed up billing the insurance company and got denied, and tried to switch me to cash and bill me the higher amount instead. I love our healthcare system.)
Yeah it didn't strike me as especially cheap either, and I have not used this practice myself, but as I understand it he does spend a lot more time with the patient discussing their questions and concerns than most docs do. He also pretty clearly markets to an upscale clientele, not people looking for bargain price medicine.
(I know this because they screwed up billing the insurance company and got denied, and tried to switch me to cash and bill me the higher amount instead. I love our healthcare system.)