Laughlin or close doctors. PLEASE READ!

Hello everyone! I am here looking for help for my mother. She just recently moved to Nevada, not quite a year ago. She hasn't been having much luck finding doctors that she likes, or that seem to even care about her. She is looking for a few different kinds of doctors. First she needs a family physician, preferably a internalist (I'm not sure what that is but that's what she said). She is also looking for a  rheumatologist. She is okay with seeing someone who is within an hour from laughlin area. She just really wants to find a few nice doctors. She has seen one in her town and he told her she was a baby and needed to see a psychiatrist. She has a lot of pain from the rheumatology and he refused to give her anything for her pain, even though her doctor here has been giving her the pain medication for over 6 years. Anyway, if anyone can help I would really appreciate it! Thanks!