Im shocked that this doctor chose this field.I was under her care when she was a resident at Mercy. She was abusive, abrasive and a horrible caretaker let alone a doctor.I came in at 32 weeks in preterm labor with twins. She berated and yelled at me. She withheld pain relief since I couldnt get into position for her to check my cervix. A very kind and more experienced nurse helped position me so she could preform a cervix check.Dr. Yoon also chastised me for not telling her about my prior placenta abruption even though it was in the computer records and I was in so much pain I couldnt communicate effectively.My husband had her removed off my care and she SLAMMED the door on labor and delivery room at around 2 am! Im sure that also disturbed other patients on the floor.Im in total shock this person is allowed to care for anyone. This person shouldnt even be allowed to bring food trays let alone be around pregnant women and newborns.