Meet the Providers

One-on-one treatment, patient to doctor



Each of the doctors in DC Internists are board-certified general internists.  They have very similar practice styles.  If your doctor is unavailable for any reason, we are confident you will be comfortable with the covering physician.

Mitchell B. Dunn, M.D.  

Board Certified General Internist

Beth Horowitz, M.D.

Board Certified General Internist​


Gregory P. Prokopowicz, M.D., MPH 

Board Certified General Internist 


Christina Russo, PA-C  

Board Certified Physician Assistant