Email Marketing to Surgeons

I want to reach surgeons in the United States with a short 3-email series. I need someone who can: 1) find/create a reasonably vetted list of email addresses for MD's that are surgeons (any specialty)... (Budget: $15 - $25 USD, Jobs: Data Analysis, Data Cleansing, Data Collection, Data Entry, Data Extraction, Data Integration, Data Management, Data Processing, Data Visualization, Excel)