My name is Dr. Raymond Singer and this is my personal web site. This is not my hospital's web site, though throughout my personal site I talk about why Lehigh Valley Health Network is one of the finest hospital systems in the country. To be clear, though, all of the view expressed on my personal web site are my views only and not the views of my hospital. I've created my web site with a few purposes in mind. Provide information about my background, philosophy and practice as a cardiothoracic surgeon. Provide education about heart and lung surgery.Provide information about my consulting firm, Singer Heart/Lung Consulting.