You are seeing this because you've added a page without setting it's template!
Head to the WordPress Admin and change this page's template to display it's content appropriately and this page will go away.
NPI/Medical- An extensive partnership from P2P
NPI/Medical - P2P on the Fast Track- D2P February 2015 Feature Article
NPI/Medical Made in America - D2P's Febuary 2015 Medical Issue