Directions to AdventHealth Medical Group Internal Medicine at Winter Haven AdventHealth Medical Group Internal Medicine at Winter Haven 350 1st St North 1st Floor Winter Haven, FL 33881 Directions to AdventHealth Medical Group Internal Medicine at Winter Haven AdventHealth Medical Group Internal Medicine at Winter Haven 350 1st St North 1st Floor Winter Haven, FL 33881 Call AdventHealth Medical Group Internal Medicine at Winter Haven at863-595-4130