How Much Does a Radiologist Earn? By: Dr. David Cathcart Updated on: April 05, 2017 More Articles How Much Does a Journalist Earn? How to Use Blackhead Removal Tool How to Install or Replace Door Hinges How to Set Fence Posts What Does a Shih Tzu Look Like? Related About the Author Dr. David Cathcart has been a family doctor and occupational medicine specialist for more than 20 years. He works at Heartland Regional Medical Center in St. Joseph, Mo.