Meet Your Team

Leadership

• William O. Walker, MD, director, Neurodevelopmental Program
• Paula Dowdle, MSHA, director, Medical Specialties
• Julia Mitzel, ARNP, supervisor, Advanced Practice Providers
• Joann Ramezanzadeh, MPA, MBA, practice 

Physicians

• Timothy Brei, MD
• Dan Doherty, MD, PhD
• Lisa Herzig, MD
• Robert Miller, DO
• Emily Myers, MD  
• Sam Zinner, MD  

Advanced Registered Nurse Practitioners

• Quinn Crosta, DNP, ARNP
• Mary Golden, ARNP
• Beth Kaukl, MN, ARNP  
• Darcy King, ARNP
• Julia Ann Mitzel, ARNP  
• Tiffany Sandy, ARNP  

Fellows

• Angela Chon, MD
• Julia Mattson, MD, PhD
• Anisha Srinivasan, MD

Researchers

• Kristie Bjornson, PT, PhD, PCS
• Nadine Bolliger, MA
• Ana Christensen, MPH
• Marissa Robertson, MPH

Registered Nurses

• Carol Chaput, RN
• Sarah Coburn, RN
• Sarah Fenner, RN
• Megan Nyirongo, RN

Dietitians

• Kim Nowak-Cooperman, MS, RDN, CD
• Jennifer Stallings, RDN

Social Workers

• Michelle Bayard, LSWAIC
• Chett Carpenter, social services specialist
• Jenna Szoka, LICSW

Medical Assistants