In 1986, she was a founding board member of the Austin Area Nurse Practitioner Alliance and in 1989 became a founding board member of Texas Nurse Practitioners. Subsequently, she helped to establish Minnesota Nurse Practitioners in 2009, of which she is now President. Dr. Willer-Sly initiated the NP role within the Texas Department of MHMR in 1991. She is a practice leader at HealthPartners Geriatrics – a group of 80 NPs who lead NP/physician teams serving 4000 patients. In 2008, she was named a Hartford Geriatric Nursing Education Scholar.