If that chart were actually reliable, most doctors would be bringing home around 85K a year.
(52 X 1623) = $84,326
Something doesn’t smell right here.
The “Doctoral Degree” category doesn’t just cover medical doctors. It includes a lot of people with a PhD in some arcane subject matter who work in research positions, or even outside their field of expertise entirely.
First despite the name, doctors do not have doctoral degrees. Doctoral degrees are PhD's.
Doctors have professional degrees [an MD, OD, JD, are "professional doctorates," but many lesser degrees not considered equivalent to a PhD are also professional degrees.]
Second, the average professional degree -- which is what an MD or a lawyer has -- comes out to around $92K according to the BLS most current stats, and this chart actually is pretty close to that at 89+K. It's only off by a few percent , which could be because the year I recall that stat from is different from this year, or because they aren't including some professions in their average. The average nonspecialist physician makes about $185K according to surveys. There are a lot of very poorly paid "professionals" who aren't MD's who bring that number down.