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DHAT – Rockwall, TX – Horizon Rd
DHAT - Rockwall
Monday – Friday
8:30 AM – 5:00 PM
Request An AppointmentView Patient Forms
Request An Appointment
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.
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Our Providers

Harry Sarles, M.D.
Vice President / Principal Investigator
in Rockwall,
TX
Sarles
Always friendly. Short wait time.
Very attentive service. Listened to my questions and planned tests and services to follow up promptly.
Great, very professional, as always Recommend highly. Dr Sarles is the best ever and I started with him in 1994 and have had some complicated problems and he has always been fantastic!
Dr. Miller is an excellent physician. The staff at the surgery facility were very nice and hotel and professional.
Everything was handled quickly and efficiently. Very friendly asked questions and answered my questions.
Everything went great. Answered all my questions.
PA MS Sarles was very courteous and professional. She was very helpful in addressing my needs.
Doctors are very caring and staff are awesome.
Professional attention with a personal approach.
Great place staff was great 👍
This was my first visit and I really liked the doctor’s positive caring attitude. I could tell she loves her job. There was no rushing and she listened to my concerns.
Staff was great and friendly. I only had to wait like 15 minutes after my appointment time the iPad they gave me for my medical history. Didn’t save anything that I inputed so that was a little disappointing. overall, great place
My husband, Don, was thoroughly happy and impressed with all the DHAT staff (Kristie L. Blank, MD) on all levels and the care he received. Thanks to all of you and all you did.
Listened to me and came up with a plan to find out what is causing my problem.
Very friendly staff and shows concern for your health. Check-in is fast.
First visit to the office. All of the staff were very professional and welcoming. Also, I appreciated the time they took in explaining every detail and listened to my concerns as well.
Great experience! Wonderful team! Thank you all!
They made me feel at ease while discussing my issue.
I totally love how I was taken care of. Saved my life and I am truly thankful.
Everyone there is so helpful and knowledgeable. The PA I saw was wonderful. She explained everything to me.