Dr. Nancy Block (100 E. Walton) is very unethical in her profession. She does not care about the quality of care that her patients should be receiving. Most of the instruments that she uses are broken and she has no shame when she mentions it to patients. Her equipment is absolutely outdated! She thinks it is funny. Her rooms are falling apart. You would never expect this, since her office is next to Michigan Avenue! She has three rooms and has a patient in each every hour. She races from one room to the next, not carefully treating each patient. If you are an HMO patient, expect to wait 45 minutes to an hour in the waiting room. She makes the least amount of money from HMO patients, so she does not care how long she makes them wait or if they leave. If you are a gay patient, expect to have the entire room wrapped especially for you. She will see you quickly as she fears gay patients are "diseased". Yes, she appears charismatic and caring but the poor dental work she provides and the deplorable conditions in which she keeps the rooms for her patients, speak volumes of her as an unethical dentist.