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Your Trusted Partner for Exceptional Gastroenterology Services in San Antonio
Personalized, Around-The-Clock Treatment By Board-Certified Physicians
Your gastroenterology needs are at the forefront when you choose our team at San Antonio Gastroenterology Associates. We’re a network of skilled and experienced GI professionals who are dedicated to getting you connected with the right resources and treatments. Our team looks forward to becoming a trusted source for your GI needs throughout the San Antonio, TX area. Improve your digestive health today and schedule an appointment.
OUR SERVICES
Anorectal Manometry
Argon Laser Therapy
Capsule Endoscopy
Chronic Care Management
Colon Cancer Screening
Colonoscopy
Esophageal Dilation
Esophageal Manometry
Esophagogastroduodenoscopy (EGD)
Feeding Tube Insertion (PEG)
FibroScan®
Flexible Sigmoidoscopy
Hemorrhoid Banding
Infusion Therapy (IV Infusion)
Sphincterotomy
Services
Anorectal Manometry
Argon Laser Therapy
Capsule Endoscopy
Chronic Care Management
Colon Cancer Screening
Colonoscopy
Esophageal Dilation
Esophageal Manometry
Esophagogastroduodenoscopy (EGD)
Feeding Tube Insertion (PEG)
FibroScan®
Flexible Sigmoidoscopy
Hemorrhoid Banding
Infusion Therapy (IV Infusion)
Sphincterotomy
LATEST RESOURCES
When Should You See a Doctor for Hemorrhoids?
At San Antonio Gastroenterology Associates, we regularly encounter patients from San Antonio, TX, who are grappling with the discomfort of hemorrhoids. These swollen veins in the lower rectum or anus can lead to pain, itching, and in some cases, bleeding. Without appropriate treatment, hemorrhoids can progress into more severe health problems. It’s important to recognize
Read MoreReviews
I had procedure yesterday with Doctor josephE.Johnson .All the nurses, Dr. Johnson, and the anesthesiologist were great. I was very stressed that day, but they explained everything to me and were very kind. I am very grateful for their efforts
They listen and help to understand what happens to you
Dr. Guerra is wonderful. Everyone at this location are very professional and kind.
Wait time was minimal & staff was helpful regarding my results. PA Raygoza is considerate of my needs as a patient. The staff overall, is very helpful.
I am always very happy with them.
All the stuff are very courteous and professional. They are always very helpful and kind.
All the stuff are very courteous and professional. They are always very helpful and kind.
Dr E Guerra is the most awesome person and Dr. Hes knowledgable and explains in details. Ty Dr Guerra.🙏
DATE: 17 APRIL 2025 . THURSDAY
DOING A REVIEW FOR MY FAMILY MEMBER. ATTENDING DOCTOR ROBERT NARVAEZ.MD.. I WILL DEFINITELY RECOMMEND HIM BECAUSE OF HIS MEDICAL BACKGROUND AND EXPERIENCE.
ALSO BECAUSE OF HIS CAREFULNESS, CARING AND TAKING CARE OF MY PRECIOUS FAMILY MEMBER. GIVING DR. NARVAEZ, A HUGE TEXAS SIZE SHOT OUT. JOB WELL DONE SIR. ⭐⭐⭐⭐⭐
FRONT DESK ARE WELCOMING LOVE THE MUSIC OVERHEAD.💙💙💙💙
SCREENING ROOM GETTING THE PATIENT READY TO SURGERY NURSE KENNETH, IS VERY NICE A BREATH OF FRESH AIR. ⭐⭐⭐⭐⭐
RECOVERY ROOM NURSE LILLIE, IS VERY KIND, HELPFUL, CARING AND DEFINITELY FOLLOW THE CENTER POLICY. PATIENT SAFETY COMES FIRST. FOR THAT I DEFINITELY RECOMMEND FOR HER TO THE HIGHER LEVEL OF PROMOTION. I'M VERY GREATFUL FOR HER TAKING CARE OF MY PRECIOUS FAMILY MEMBER. ⭐⭐⭐⭐⭐
ROOM IS WELL ORGANIZED AND VERY CLEAN.💙💙💙💙
THANK YOU KINDLY EVERYONE FOR YOUR OUTSTANDING JOB WELL DONE.👍👍👏👏
HAVE A SAFE AND HEALTHY HAPPY EASTER 🐣🐰🐇🐭
DOING A REVIEW FOR MY FAMILY MEMBER. ATTENDING DOCTOR ROBERT NARVAEZ.MD.. I WILL DEFINITELY RECOMMEND HIM BECAUSE OF HIS MEDICAL BACKGROUND AND EXPERIENCE.
ALSO BECAUSE OF HIS CAREFULNESS, CARING AND TAKING CARE OF MY PRECIOUS FAMILY MEMBER. GIVING DR. NARVAEZ, A HUGE TEXAS SIZE SHOT OUT. JOB WELL DONE SIR. ⭐⭐⭐⭐⭐
FRONT DESK ARE WELCOMING LOVE THE MUSIC OVERHEAD.💙💙💙💙
SCREENING ROOM GETTING THE PATIENT READY TO SURGERY NURSE KENNETH, IS VERY NICE A BREATH OF FRESH AIR. ⭐⭐⭐⭐⭐
RECOVERY ROOM NURSE LILLIE, IS VERY KIND, HELPFUL, CARING AND DEFINITELY FOLLOW THE CENTER POLICY. PATIENT SAFETY COMES FIRST. FOR THAT I DEFINITELY RECOMMEND FOR HER TO THE HIGHER LEVEL OF PROMOTION. I'M VERY GREATFUL FOR HER TAKING CARE OF MY PRECIOUS FAMILY MEMBER. ⭐⭐⭐⭐⭐
ROOM IS WELL ORGANIZED AND VERY CLEAN.💙💙💙💙
THANK YOU KINDLY EVERYONE FOR YOUR OUTSTANDING JOB WELL DONE.👍👍👏👏
HAVE A SAFE AND HEALTHY HAPPY EASTER 🐣🐰🐇🐭
I've been a patient if Dr Alvarez about over 5yrs. He is very knowledgeable, has an excellent bedside manor and explains everything thoroughly. He is an excellent Dr. I never have a long wait at my appts. I'm seen on time and visit is not rushed.
They are in Medical Plaza 2!!
Info texted with address for appointment was wrong. Appt was on time and I did not have to wait long.
Info texted with address for appointment was wrong. Appt was on time and I did not have to wait long.
It’s been over ten years that I have not been able to swallow. Previous doctor diagnosed me for hiatal hernia. I had three consecutive procedures with this same doctor dilating my oesophagus over the years but I was frustrated with not being able to swallow and sometimes with deadly choking episodes. My current primary care physician recommended Dr Otero to me.
Dr. Otero assured me that I should be able to swallow normally again after my procedure. He was so kind and I quite appreciate his encouraging words. I am swallowing again!.
Thanks to Dr. Otero. I will recommend him to the world.
Dr. Otero assured me that I should be able to swallow normally again after my procedure. He was so kind and I quite appreciate his encouraging words. I am swallowing again!.
Thanks to Dr. Otero. I will recommend him to the world.
I was quite pleased with the attention and service provided and the follow-up towards my medical issue. Excellent.
If you need to see a gastroenterologist, this is the best place to go in San Antonio!!!
I have a genetic history of rectal- colon cancer, and must be scoped regularly.
And, of all the possible locations for the procedure, none are as good as this clinic.
GREAT STAFF, excellent doctors and good hygiene make it my preferred option for any and all intestinal problems and issues.
I have a genetic history of rectal- colon cancer, and must be scoped regularly.
And, of all the possible locations for the procedure, none are as good as this clinic.
GREAT STAFF, excellent doctors and good hygiene make it my preferred option for any and all intestinal problems and issues.
Excellent exam and discussion on my symptoms. It’s always great to have a listening and coaching person to reflect on proper care.
I've been a patient for 7 years, and I am very satisfied with SAGA, I am very satisfied on how they took care of me.
Very attempted staff, and physicians that really care about your particular condition.
I was quite pleased with the attention and service provided and the follow-up towards my medical issue.
Dr Franklin is very kind and listens to all your questions and answers clearly. Never felt rushed. Office staff very helpful.
Every appointment i've been to has always been a very good experience,their always very helpful and very professional. Thank You All Very Much.
Excellent exam and discussion on my symptoms. It’s always great to have a listening and coaching person to reflect on proper care.
Always consistently helpful and professional.