I need to add a physician on MIPAnet or the website? How do I get added? Posted on October 16, 2019 Homepage > FAQ > I need to add a physician on MIPAnet or the website? How do I get added? A W9 form must be submitted and sent to Meritage’s Network Relations Department. Marin County: mfleetwood@meritagemed.com Sonoma/Napa: kgustafson@meritagemed.com