Raj Patel, 33, was convicted last week by Basildon Crown Court, Essex, of attempting to obtain pecuniary advantage by deception by falsely representing a registered GP.
Mr Patel, of North Circular Road, Barnet, north London, a recruitment consultant for a locum agency, used his knowledge of the industry to exploit security loopholes and steal the identity of a doctor with the same name practising in Ipswich - obtaining a GMC registration number.
He then contacted a medical defence organisation, and after several phone calls, managed to convince it to send a copy of the real Dr Raj Patel's membership certificate to his address.
Despite arriving with a shabby bundle of photocopied certificates and stumbling his way through a 30-minute interview, the prospective locum doctor was asked back to spend two days shadowing a GP at Warrior Square Surgery in Southend, Essex, the jury was told.
Suspicions were aroused when Mr Patel showed a lack of basic medical knowledge when examining a female patient's stomach.
Judge John Lodge adjourned sentencing for six weeks to consider reports, but said that Patel faces either a hospital order or a supervision order with psychiatric treatment.
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