Ms Barber lodged documents under the Public Interest Disclosure Act that allege in a number of cases that doctors employed by Queensland Health have caused serious harm to patients, and in one case resulted in death.
Ms Barber says the documents she presented to the CMC relate to cases as recent as 2010.
"In particular, one case where a lady had her life support turned off by a doctor, without her permission and against her wishes, and died some hours later."
"That doctor is still working on the Gold Coast.
Ms Barber says she has a wealth of evidence.
Ms Barber says that Queensland Health, and the Medical Board that internally investigated the matters, "was dysfunctional and not able to meet its obligations under the legislation to protect the public".
Independent MP Rob Messenger says he spoke to the media before going to the CMC because he has serious concerns over the CMC's ability to properly investigate the allegations.
"There's a question mark over the integrity and the honesty over the CMC - but they're all we've got.
Queensland Health Minister Geoff Wilson said in his statement that Queensland Health and the Medical Board are not the bodies that matters like this should be referred to.
"If there is anything to be investigated, it should have been provided to the Health Quality Complaints Commission (HQCC)."
Robina Cosser says : Whistleblowers are often given this sort of run-around.
Government departments will tell you that your complaint is not their responsibility and to tell somebody else.
This seems to be a delaying and 'wearing you out' and 'drowning you in paperwork' and 'making it too late for you to complain' strategy.
If there is anything to be investigated, and if the HQCC is the body to whom it should be reported, Queensland Health, The Medical Board of Queensland and the CMC should themselves pass it to the HQCC.
Listen to Steve Austin's full interview with Rob Messenger and Joanne Barber here.