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Get to Know ThedaCare’s Newest Providers

Last updated: December 5, 2022

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 Headshot

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 Headshot

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 Headshot

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.”

Tags: Doctor New Providers Nurse Practitioner Physician Assistant

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