Request an Appointment
DHAT – Rockwall, TX – Horizon Rd
DHAT - Rockwall
Monday – Friday
8:30 AM – 5:00 PM
Request An Appointment
If you are experiencing a medical emergency, please call 9-1-1.
To schedule an appointment, please call 972-771-2222 or click the “Message Us” button located at the bottom right corner of your screen and a member of our team will contact you within 48 hours.
If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.
Our Providers

Kristie Blank, M.D.
Gastroenterologist
in Rockwall,
TX

Onki Cheung, M.D.
Gastroenterologist
in Rockwall,
TX

Adil Ghafoor, M.D.
Gastroenterologist
in Rockwall,
TX

Mark Miller, M.D.
Sub-Investigator, Gastroenterologist
in Rockwall,
TX

Ammar Nassri, MD
Gastroenterologist
in Rockwall,
TX

Paul Paradiso, D.O.
Gastroenterologist
in Rockwall,
TX

Harry Sarles, M.D.
Vice President / Principal Investigator
in Rockwall,
TX