The NHS is overburdened by inspections by at least 56 different bodies, a report has warned.
The NHS Confederation, which represents 90% of managers, says inspection and assessment are important.
But it warns the visits by watchdogs and requests for information can be uncoordinated and place unnecessary burdens on the health service.
The government said inspection was necessary but that it was seeking to minimise the impact on the NHS.
The government, and individual regulators, have made commitments to reduce the regulatory burden in the NHS.
But the confederation says NHS bodies say it has actually increased.