Simple answer, Yes.
I assume you are asking about medical doctors. Let's look at it this way, most physicians earn over $150,000 which puts them into the top income brackets in the US.
$150,000 top 8%
$200,000 top 4%
Which means that even in America they are considered rich.
If you are talking world-wide standards, most Americans are rich. If a person has more than one pair of shoes, they have more than most of the 7 billion people on the planet.
I don't know how accurate this site is but it ranks income based on some worldwide stats. http://www.globalrichlist.com/ (I don't know the site, it may be a scam, so I would not donate without doing some research)
They put someone with a $150k income in the top 0.06% and $200k is top 0.04%. Someone who makes $20,000 is even in the top 3.65% and 15k still keeps you in the top 10% at 7.91%. My daughter makes close to that at a part-time job.
I guess the point is being rich is subjective, and is very dependant on where you live. especially when considering the cost of living differences.