ThedaCare is thrilled to introduce our newest providers and learn what inspires them to improve the health and well-being of our patients and empower them to live their unique, best lives.

Emma Herlache, BS, MS
Medical Genetics, ThedaCare Regional Cancer Center-Appleton
“Genetic counseling allows me to help people understand how something as complex as genetics can impact their daily life. I take the time to listen and learn a patient’s personal and family health history to help identify any conditions that may affect their health.”

Rebecca Sirna, DNP, APRN, FNP-BC
Family Medicine, ThedaCare Physicians-Neenah and Oshkosh
“I enjoy a family practice setting because it allows me to work with patients across the lifespan, from newborns to the elderly. I have a strong interest in adolescent health, women’s health, mental health and providing safe, inclusive care for LGBTQIA+ patients.”

Shawn Williamson, MD
Emergency Medicine, ThedaCare Medical Center-Waupaca
“Working in emergency medicine can be rewarding and challenging at the same time. I am highly trained and ready to help patients when they are experiencing life-threatening illnesses or traumas. Being able to solve problems under pressure is what I like best about the emergency department.”