61-year-old Patricia Dowdy was previously suspended on an interim basis and began her hearing on 11 February. At the time of his passing, Hawking had been living with motor neurone disease for 50 years.
The NMC said Patricia Dowdy had faced multiple misconduct charges in relation to the care she was providing to the eminent physicist including financial misconduct, dishonesty, not providing appropriate care and failing to cooperate with the NMC and not having the correct qualifications.
The council's Matthew McClelland says the public expects the council to take action "in serious cases such as this".
"My thoughts are with the family at this hard time", he said.
Despite his illness, Hawking became one of the world's best-known and most inspiring scientists, known for his brilliance and his wit.
Hawking's family and others had shared their concerns with the council, according to the statement released from London.
A spokesman for the family said: "The Hawking family are relieved this traumatic ordeal has now concluded and that as a result of the verdict, others will not have to go through what they suffered from this individual". As well as his work with Cambridge University, he also wrote several successful books, including "A Brief History of Time". The Mail on Sunday, which was first to report on the matter, said Hawking's family lodged a complaint, which prompted the investigation.
"No public interest is served by exposing the details of the health or care of an individual whose anonymity may not be guaranteed in an open hearing".
"It is a great privilege to be featured on a coin and I hope my father would be pleased to be alongside Sir Isaac Newton and Charles Darwin as scientists who have made it onto money!" said Lucy Hawking, his daughter.
"As the regulator, we will always listen when concerns about the fitness of nurses, midwives or nursing associates are raised with us so that we can investigate further for the benefit of everyone involved".
NMC held the hearing in private, a move that prompted chief executive Andrea Sutcliffe to explain their reasons on their website.