Hospital change hailed.
The Conservative MP highlighted recent figures showed the number of patients placed in mixed-sex accommodation fell from 473 in December 2010 to zero in January 2013.
Mr Wharton said: "I am pleased patients in the North East will no longer be placed in mixed-sex wards.
"This is a significant achievement by the Government and will mean a better experience for many people who enter hospital."
Both Teesside hospital trusts in North Tees and South Tees confirmed they have been achieving this over a number of years.
Anne Sutcliffe, South Tees Hospitals NHS Foundation Trust's acting director of nursing and patient safety said: "The trust has, over a number of years, made many changes to the hospital environment to eliminate mixed sex wards and is compliant with this Department of Health requirement." Barbara Carr, North Tees and Hartlepool NHS Foundation Trust's assistant director of nursing also said: "Privacy and dignity are vitally important to patients when they are in hospital and we are committed to ensuring patients are cared for with other patients of the same sex."