Bert Nash Community Mental Health Center Responding to Needs, Restoring Lives, and Building a Healthy Community. 24-HOUR NUMBER (785) 843-9192. Walk-In Hours Mon-Thurs 8:00 am - 8 pm Fri 9 am to 8 pm. LAWRENCE 200 Maine Street Lawrence, KS 66044 Fax: (785) 843-2219. HAVE A QUESTION?Contacts‧Join Our Team‧Faq's‧Services‧About‧Events.