Dr Tullet, originally from Kent, Britain, had come as a volunteer to work in Everest ER, the medical tent at the mountain's Base Camp run by the Himalayan Rescue Association.
Selina Dicker, 38, a climber from London who spent the day in the tent caring for a teammate, saw Dr Tullet in action and said it was in large part due to her actions that so many people had survived.
"She was an absolute superwoman. I've no doubt far more people would have died if she hadn't been there. She said she had been caught in the avalanche, but she never once gave away that she was injured.
"She organised the whole thing, kept completely calm in this frankly crazy situation, and that was on top of treating all the patients - at one point she must have had 30 people on stretchers - as well as certifying the dead and organising all the patients to be carried down to another camp.
"She's incredibly self-effacing, though, so she'll probably never admit to it."
When contacted, Dr Tullet said it had been a case of "extraordinary teamwork which saw everybody come together in a quite unbelievable way", and she paid credit to her colleague Megan Walmsley, an Australian anaesthetist, and the leaders of the expeditions who had helped support the medical team.
She is now back in New Zealand recovering, but is planning to return to Nepal in a fortnight to volunteer her medical expertise.
"I went through the Christchurch earthquake [working in A&E] so I just feel so sad for Nepal. It's such a long recovery process, and that's in a developed country, so I want to come back to provide what help I can."
The severity of the injuries was "consistent with a bomb blast", but one of the hardest things was knowing so many of those killed or injured.
Observer