In Doctor Strange, the titular character, after the car accident, is adamant about others addressing him as "doctor", even though he knows he is no longer able to practice his medical specialty anymore (neurosurgery). This seems to indicate an undercurrent of insecurity about his identity post-accident.
Does Doctor Strange lose his medical license as a result of his hand injury or the related fallout? That is, is his inability to practice primarily practical in nature (he's afraid that his shaky hands will make him botch up an operation, so he decides not to try), or is he stripped of his professional identity in a more profound way?
Although I'm asking from the perspective of the MCU, I will accept an answer from the comics as long as it is not directly contradicted by anything in the MCU.