Is there anyway to work around HIPPA restrictions to help manage care for mother (82) who is suffering from paranoid delusions?

She has not wanted to grant us a healthcare proxy and most of her doctors are unwilling to speak to us (HIPPA) and have been slow to intervene despite worsening conditions. Concerned that she may turn suicidal. She lives alone in NC - 500 miles away from her 3 children (NY, MA). Recently she has alienated almost all her friends and support group as she clings to her notion that she is robbed on a daily basis to explain her inability to keep track of things in her house. For the past 12 months, she has been unwilling to leave the house but for brief periods during the day. She has been close to her family, but is now mistrustful of us since we do not subscribe to her delusions. She did agree to undergo a mental health exam in September, which cleared her of any dementia but did validate that she paranoid delusions. She did start taking Risperdal but is very suspicious of it and keeping it at a sub-therapeutic dose. In October has scared off her longstanding friends who were helping her keep track of her checkbook. No surprise, she is unwilling to grant a health proxy to anyone, although a friend has one for end-of-life care.