Antonio Serna, M.D.


520 E Euclid Ave

San Antonio, TX 78212

Closed. Opens Thur at 8 AM
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Quick Facts

  • Virtual Telemedicine Visits Available, Call For Details
  • Board Certified Gastroenterologist
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted
  • Performs Colonoscopies
  • Fluent in English and Spanish

SAGA - San Antonio, TX - Downtown

Gastroenterology in San Antonio, TX

SAGA - San Antonio, TX - Downtown

520 E Euclid Ave

San Antonio, TX 78212

Closed. Opens Thur at 8 AM

About Antonio Serna, M.D.


Antonio Serna IV, M.D. can pinpoint the exact moment he knew he wanted to be a doctor, “I was in high school and shadowed a physician for career day. We were helping people and I enjoyed the experience. That day, I knew that this is what I wanted to do.”

Dr. Serna then went on to pursue his dream, completing his Medical Doctorate at the University of Texas Southwestern School of Medicine, as well as his Fellowship in Gastroenterology at the University of New Mexico Health Science Center. After that, he chose the sub-specialty of gastroenterology due to the diversity of the field. He says, “GI involves so many organs and organ systems. The work is interesting and diverse – we problem solve and do procedures.”

When Dr. Serna is not practicing medicine, he is involved in the local community, such as dedicating time as a volunteer at camps for children suffering for Crohn’s and colitis. Dr. Serna has been heavily involved in campaigns in order to promote colon cancer awareness and prevention. In addition to these efforts, his involvement has even extended to features on local television programming.

Dr. Serna’s motivation comes from his patients. They are what makes practicing medicine so enjoyable. In his own words, “The patients have to come first. When we put our patients first, we make a real difference, even when we can’t offer a cure.”


Doctor of Medicine, University of Texas Southwestern Medical School Dallas, Texas
Fellowship, Gastroenterology University of New Mexico, Albuquerque, New Mexico



Dr. Serna is an excellent Doctor and human being!!. My mother and I are pacients of this Clinic. Personally, I have had 2 cirugies under his supervision, and everything was perfect. I strongly recommend him for new pacients. Nobody is perfect, but clearly he is doing his best!!. Another big plus is that he is BILINGUAL!!!. He speaks english and spanish!. My mother feels very comfortable during her appointments because she is able to speak her language. Gracias Dr. SERNA!!

A.C. Google

I only met him briefly before my procedure, he was inquisitive plus comforting in an uncomfortable situation. Thank-you Dr. Cerna!

L.A. Google

He’s been great to me. Always fast responses and super nice guy.

C.L. Google

Dr. Serna is one of the finest physicians I have had the pleasure of knowing. He is a master of explaining conditions and solutions, and has succeeded in treating me in a more effective manner than any other gastroenterologist I have consulted. I recommend him enthusiastically.

M.W. Google

I would definitely recommend Dr serna ,He licen to what I had to say,how i was feeling and my symptoms, I trudly believe if I hadn't gone and get checked my outcome would have been different.

S.G. Google


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