Back to Search Dignity Health Medical Group Categories Medical Services 280 Sierra College Dr., Ste. 105 , Grass Valley , CA , 95945 280 Sierra College Dr. Ste. 105 , Grass Valley , CA , 95945 (530) 477-4490 www.sierranevadamedgroup.org Contacts Primary Karey McNamara Share × Print Email Facebook LinkedIn X Pinterest Powered By GrowthZone