Cancer survivors wrongly operated on by the disgraced breast surgeon Ian Paterson are calling on his old employers to ensure that all former patients are contacted.
Health campaigners say they fear some may have been missed despite a number of reviews.
Paterson - a consultant breast surgeon who was employed by the Heart of England NHS Foundation Trust (HEFT) - intentionally wounded his patients by exaggerating or inventing cancer risks and claimed payments for more expensive procedures.
He had practicing privileges in the independent sector at both Spire Parkway and Spire Little Aston in Birmingham, and was found guilty of 17 counts of wounding patients with intent in April.
Paterson was jailed for 15 years, which was increased to 20 years on appeal after a judge ruled the original term "unduly lenient".
The campaigners say they fear the NHS and private breast treatment reviews carried out to date risk missing out Paterson's general surgery patients, who had operations such as gall bladder removal.
HEFT carried out reviews in 2013 and Spire in 2014, with the NHS hospital trust saying it had reviewed or cross-checked nearly 24,500 patient records, to assess if Paterson was involved in their care.
Both organisations have paid millions in damages to hundreds of affected cancer patients.
The Department of Health announced a broader independent inquiry into Paterson's malpractice and the wider lessons to be learned - but campaigners say this fell short of their choice of a public inquiry.
They say the independent inquiry has no powers to compel people to give evidence, and they say that means little chance of any new important information coming forward.
But they admit it could provide a "step forward" if the inquiry is able to reveal full statistics on patient numbers.
Spire and the NHS say they will fully co-operate with the new inquiry.
HEFT say the review was to ensure "all patients are given the most appropriate follow-up care".