Alert: Phone Scam Warning. Learn More

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.

DHAT – Rockwall, TX – Horizon Rd
3144 Horizon Road, Suite 210, Rockwall, TX 75032
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Our Providers

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Kristie Blank, M.D.

Gastroenterologist
in Rockwall, 
TX
Meet Dr. Blank
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Onki Cheung, M.D.

Gastroenterologist
in Rockwall, 
TX
Meet Dr. Cheung
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Adil Ghafoor, M.D.

Gastroenterologist
in Rockwall, 
TX
Meet Dr. Ghafoor
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Mark Miller, M.D.

Sub-Investigator, Gastroenterologist
in Rockwall, 
TX
Meet Dr. Miller
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Ammar Nassri, MD

Gastroenterologist
in Rockwall, 
TX
Meet Dr. Nassri
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Paul Paradiso, D.O.

Gastroenterologist
in Rockwall, 
TX
Meet Dr. Paradiso
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Harry Sarles, M.D.

Vice President / Principal Investigator
in Rockwall, 
TX
Meet Dr. Sarles

Alert: Phone Scam Warning

We’re seeing an increase in phone scams targeting patients. Callers may pose as Medicare, your doctor’s office, or another healthcare provider to obtain your Medicare number or other personal information.

Please remember:

  • Never share your Medicare number, Social Security number, or banking information with unsolicited callers.
  • Medicare will never call you unexpectedly to request your number or personal details.
  • Be wary of offers for “free” medical equipment or services in exchange for your Medicare information.
  • If a call seems suspicious, hang up and contact the clinic where you receive care directly using the phone number listed on our website for that location.

To report a suspicious call: Call 1-800-MEDICARE (1-800-633-4227) or visit reportfraud.ftc.gov.

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