Hearing specialist Dr Lam Hoe Yeoh, 62, spent three years videoing patients, colleagues, friends and children as young as three from tiny cameras.
The 62-year-old has now been sentenced to eight years behind bars after admitting seven counts of voyeurism at Croydon Crown Court.
It included hiding cameras in the toilets of a clinic in Nottingham.
The clinic cannot be named to protect the male and female victims’ identities.
Nottingham University Hospitals NHS Trust said the doctor, of Banstead, Surrey, had never worked for them.
He also filmed unsuspecting victims in London, Exeter, Sutton and Surrey.
Yeoh was arrested on April 14 after a staff member at his Sutton clinic found a device which had fallen to the floor.
On it was footage of the doctor, who had accidentally filmed himself while installing the camera.
Detective Inspector Sarah Rees, of Sutton CID, said: “In carrying out his well-organised campaign of making voyeuristic images of both adults and children, Dr Yeoh abused his position of trust for his own sexual gratification.”
Jeff: This bloke is a paedo and should be deported