“I strive to deliver high quality, comprehensive medical care with compassion and competence. I love educating patients about their medical conditions. I am passionate about eliminating polypharmacy one little white pill at a time. I review medication lists in detail and prescribe medications whenever it is appropriate. My goal is to ensure patients feel comfortable with their treatment plan and have all their concerns addressed in a timely manner.”

Board Certification

  • Physician Assistant

Area of Expertise

  • Internal Medicine


Graduate School

South University
Master of Science in Physician Assistant Studies
Savannah, GA

Undergraduate School

University of San Diego
Bachelor of Arts in Biology
San Diego, CA

Hospitals Affiliated With

Memorial Hermann The Woodlands Hospital
Methodist The Woodlands
St. Luke’s The Woodlands Hospital

Professional Association

National Physician Assistant Honor Society
2010 – Present


Shay has been a PA since 2010. She moved to Houston and joined PGW in 2011 and works for both Dr. Cos and Dr. Paschalis. She lives in the Woodlands area and is married with 2 boys. Weekends are spent outside with her family. She also enjoys working out, skiing, beach trips, going to live shows, and trying out new restaurants with her husband.