Fallon Community Healthcare Customer Service Issues

I need to update my health care proxy urgently. Can this be done by the end of the day? My current contact information is 5 Jennifer Lane, West Stockbridge, MA [redacted], phone number [redacted]. I have tried contacting MassHealth to update my address to West Stockbridge from my old address at 9 Pacific Street, Pittsfield. My date of birth is 10/13/87, and my social security number is [redacted]. The policy claim numbers for Fallon Berkshire Fallon Health Collaborative and MassHealth ID have been provided. Currently, the medical proxy is under James Kimble or James Kimball Kimble, and I wish to change it to my mother, Stephanie Paige ([redacted]). I want to ensure James Kimble does not have access to my health information. Please contact me to confirm these changes. Thank you.