Lillienne Chan, M.D.

Pediatric Gastroenterologist


3144 Horizon Rd Ste. 210

Rockwall, TX 75032

Quick Facts

  • Virtual Telemedicine Visits Available, Call For Details
  • Board Certified Pediatric Gastroenterologist
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted
  • Performs Colonoscopies

DHAT - Rockwall, TX - Horizon Rd

Gastroenterology in Rockwall, TX

DHAT - Rockwall, TX - Horizon Rd

3144 Horizon Rd

Ste. 210

Rockwall, TX 75032

Closed. Opens Mon at 8:30AM


DHAT - Dallas, TX - Forest Ln - Pediatric

Gastroenterology in Dallas, TX

DHAT - Dallas, TX - Forest Ln - Pediatric

7777 Forest Lane

Suite C522

Dallas, TX 75230

Closed. Opens Mon at 8 AM

Request an Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Non-emergency requests will be responded to within 24-48 hours.

About Lillienne Chan, M.D.

Dr. Lillienne Chan is a dedicated, board- certified pediatric gastroenterologist who loves taking care of children of all ages and their families.

Her love for medicine began during her undergraduate time at Baylor University in Waco, TX. Her love for Pediatrics began during medical school at University of Texas Medical Branch in Galveston, TX. Her love for Pediatric Gastroenterology began and fostered throughout her time at the University of Texas Southwestern in Dallas, TX for internship, residency, and fellowship.

Dr. Lillienne Chan has been practicing Pediatric Gastroenterology for over 13 years. She is an active member of the CCFA North Texas Chapter for patients with Inflammatory Bowel Disease. With this organization, she has served as a member of the medical team at Camp Oasis, Medical Advisory Board, and now the Co- Chair of the Healthcare Professional Engagement Committee. She is also active and has served on various national committees with NASPGHAN, which is the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition. Due to her hard work and dedication to patient care, she has been awarded Best Doctor in Pediatric Gastroenterology by D Magazine.

Education and Training

  • Board Certified: Pediatrics and Pediatric Gastroenterology
  • Fellowship: Pediatric Gastroenterology, UT Southwestern, Dallas, TX
  • Residency: Pediatrics, UT Southwestern, Dallas, TX
  • MD: University of Texas Medical Branch, Galveston, TX
  • Undergrad: Cum Laude, Baylor University, Waco, TX

Professional Affiliations

  • American Gastroenterological Association
  • Crohn’s and Colitis Foundation of America
  • North Texas Chapter Medical Advisory Committee
  • Dallas County Medical Society
  • North American Society for Pediatric Gastroenterology, Hepatology and Nutrition
  • Texas Medical Association

Facility Affiliations

  • Medical City Dallas Ambulatory Surgery Center
  • Medical City Dallas
  • Children’s Medical Center Plano
  • Live Oak Surgery Center


Dr Chan was very friendly and knowledgeable. She helped us to put our fears away and continue on with knowing we have a healthy baby.

J.R. Google

Dr. Chan has been incredible to work with to figure out what is going on with my toddler. She is always on time (or early) for the appointments. She calls directly for test results, questions, etc. Her office staff is quick to respond and very kind. We happily travel about 4 hours 1-way to see her. :)

A.W. Google

We love Dr.Chan she is so thorough and informative. Takes the time to make sure we a confident in everything she went over. She calls and emails to check in on our baby. I'm very grateful for her she has helped me get through reflux and dairy intolerance with our little one.

S.F. Google

Dr.Chan and her staff are amazing!! This was our first visit and from the moment we entered the office we felt welcomed. Dr. Chan and her staff are caring, compassionate, informative, and supportive. Talk about getting the ball rolling to finding the root to problem is an understatement. Before we left her office there was a plan in place. I’m so thankful for Dr.Chan and her staff. The Cleveland Family

D.M. Google

Dr Chan and her coworkers do everything in their power to make you feel comfortable and taken care of! Being a patient since 2017, has granted me with the opportunity to connect with Dr Chan and Margaret! They are very thorough with everything they do!

J.I. Google


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