Some 97% of GPs in the UK claim to use electronic medical records, according to the 2012 Commonwealth International Health Policy survey.
The survey of nearly 8,500 primary care doctors across the world found that the UK came top in its use of information technology.
Health secretary Jeremy Hunt said: “I am pleased that our GPs are doing very well when it comes to using electronic medical records and enabling patients to make appointments online.
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The news follows the commitment from the Department of Health to get all patient records online by 2015 in its first mandate between the government and the NHS Commissioning Board.
"This will help people better manage their health and care," said Hunt.
Compared with other countries, the UK was ranked highest for providing after-hours care for patients and for reporting that their practices used nurse case managers.
UK doctors also reported the highest rates when it came to feedback on their performance, with 84% saying that they receive and review data on clinical outcomes.