Dr. Kim is a very good doctor. Unfortunately, Kathy from his office staff is one of the most unprofessional people I have ever come across in a doctor's office. A billing problem, being billed for services not rendered, caused me to contact the office. On the 3rd call to the office after no one returned my call as promised, Kathy was completely unprofessional and extremely rude. Unless you are looking for disrespectful treatment from office staff after they erroneously bill you, stay away.