World-renowned hearing specialist Dr Lam Hoe Yeoh was sentenced to 8 years at Croydon Crown Court after police released footage of the 62-year-old taken on one of the hidden cameras he used to film women.
The Malaysian doctor was finally caught when one of his covert cams came loose and was spotted at privately-run St Anthony's Hospital in North Cheam.
Shocked staff retrieved the device to find images of themselves using the toilet, as well as footage inadvertently captured of Yeoh fixing the device with Blu-Tack.
In addition to 7 counts of voyeurism, Yeoh pleaded guilty to 6 counts of making an indecent photograph of a child, and one of possessing extreme pornography.
Sentencing him, Recorder Warwick McKinnon said: "The sheer scale, the gravity, the ingrained and compulsive behaviour demonstrated by the offences is significantly important. You are considered a high risk to the public."
The voyeur doctor will serve 5 years of his 8 year sentence before being released on licence.
Speaking outside the court, police said Yeoh was "one of the most prolific non-contact offenders ever investigated".
Victims as young as three were discovered on a secret stash of 1,100 images and video files hidden in Yeoh's home in Garratts Lane, Banstead, following his arrest on April 14.
Prosecutor Peter Clement described the offending as "sophisticated, organised, planned and long-running", and said the renowned doctor "grossly abused" the high degree of trust placed in him.
The court heard the offending dated back to January 1 2011, but Yeoh's behaviour is likely to have begun earlier as it would take another two years for police to examine the huge volume of files found on a range of devices.
Yeoh's footage was captured using a network of devices including pen drives and camera-watches, and labelled with "graphic descriptions" that included dates and names.
When he was arrested, a USB drive hanging around the doctor's neck contained clips labelled "Cardiff Train Teenager".Suggest a correction