One in six NHS staff feel bullied at work, with workers subjected to "petty" reprimands by managers, the committee also heard. Over half feel that their concerns are not listened to.
Mr Martin has called for greater use of "no-fault compensation" for patients and improved procedures for issuing apologies.
"We spend a lot of time talking about this but what we really need to start thinking about is what the hell we are going to do about it," he said.
"Since I came into this office (in 2009) it's been getting discussed, and before I came to this office my predecessor was raising issues. This problem is only going to get worse, not better, because there are going to be more older people and there are going to be greater expectations amongst the public.
"We are seeing repetition of incidents of failure to care adequately for people with pre-existing conditions in acute settings, and some of the cases that we see are extremely distressing. I heard about an elderly person who attended accident and emergency and ended up in a gynaecology ward."