Fired Apprentice candidate Dr Shibby Robati claimed he lost out on a job with Lord Sugar because he was not as experienced in business as his rival candidates.
The 27-year-old surgeon was blasted by his team-mate Paloma Vivanco for making "rookie mistakes" and having "zero business experience", and he was called "Dr Doolittle" by Lord Sugar.
He was fired after team Apollo, which he was managing, lost the baking task for making £194 less profit than the rival team, partly due to Robati paying compensation to a hotelier when he failed to deliver the full order of bread rolls they had agreed.
Robati said: "I do feel that my business acumen wasn't as experienced as the others.
"You don't get on to a show like this having no business experience. I set up two companies just over a year ago. You don't do that with no business experience, so I've got to have something there.
"Of course I'm not as business savvy as the others, but I know how to make money. The end result is what's on your bank statement."
The trained medic was project manager of team Apollo, which which failed to make the most profit after they committed to making an impossible order to a large London hotel.
Robati admitted he had no experience at pitching, and that he was intimidated by female colleagues Vivanco and Laura Moore into overestimating what they could produce.
He said: "The thing is those two girls, I did feel slightly intimidated by them because they had experience in pitching.
"The only thing I've ever pitched before is a tent. This was their area of expertise so I'd have liked to have thought that they'd have known how to have dealt with those pitches and make sure that they don't over order."
When Apollo failed to provide the hotel with the full delivery before their breakfast service the next morning, he gave the hotel manager compensation, which he now admits was a mistake.
Robati said: "I got fired because I wasn't as firm as I should have been managing the group.
"I gave compensation to the hotelier. In hindsight, what I should have done was just apologise and not offer the compensation."
But the experience has not put the surgeon off business, and he feels his three short weeks on the show have helped further his career.
He said: "The experience that you learn and that you acquire on that programme, you can take in your further career, and you make friends that you can keep for life.
"It was the best experience and I don't regret it one bit."