As a male I wish to see a dermatologist for my skin problem. I have an option between a male and female one. Do I have to see the male doctor only or is it permissible to go to the female one if she is more skilled?
Bismihi ta'ala
If there will be physical contact, without gloves, and you do have an option of seeing a specialist of the same gender, then it would be haram to go otherwise. Unless of course, the specialist of the opposite gender is the only highest qualified dr and your case is serious, needing that level of qualification, then you can, but try to request gloves be worn.
And Allah knows best.