We have MOVED! Come Visit Our NEW Walnut Creek Location: 2637 Shadelands Drive!

About our practice

Exceptional Healthcare


Our mission is to provide you with the highest-quality, evidence-based digestive care delivered with compassion. We are dedicated to improving and maintaining your health through preventative care and treating chronic digestive and liver diseases.  

Meet Dr. Mullen


Dr. Mullen received her medical degree from Tulane University in New Orleans. She completed her internal medicine training at the University of Hawaii in Honolulu where she served as the Chief Medical Resident at the Queen's Medical Center.  She then went on to finish her fellowship training in Gastroenterology and Hepatology at Upstate Medical University in Syracuse, New York. She combines her years of  extensive procedural experience and knowledge of gastrointestinal and liver disorders with her approachable bedside manner to improve patient outcomes.

A Personal Approach


One size does not fit all. We use a collaborative, knowledgeable,  common-sense approach to diagnose the problems and find the right treatment plan for you. Our focus is not only on treating disease. Our goal is to empower you with an understanding of your condition and wellness plan to improve and maintain your overall health