About Dr. Ryan R. Barrientos
Dr. Ryan R. Barrientos is a board-certified gastroenterologist with Houston Regional Gastroenterology Institute. He evaluates and treats disorders affecting the esophagus, stomach, intestines, liver, pancreas, gallbladder, and biliary system. His work includes office-based digestive care, endoscopic testing, and long-term management of gastrointestinal conditions.
Dr. Barrientos involves patients in treatment decisions and explains the steps involved in testing and follow-up care. He serves as chief of gastroenterology at HCA Houston Healthcare Medical Center and teaches as a clinical associate professor at the University of Houston. Patients seeking related specialists can visit the Doctiplus gastroenterology directory and general and internal medicine directory.
Focus Areas
- Abdominal pain, nausea, and digestive symptoms
- Gastroesophageal reflux disease and heartburn
- Gastritis, ulcers, and duodenitis
- Constipation and changes in bowel habits
- Gastrointestinal bleeding
- Inflammatory bowel disease
- Pancreatic and biliary tract disorders
- Liver disease and abnormal liver tests
- Colonoscopy and colorectal cancer screening
- Upper endoscopy and therapeutic procedures
The National Institute of Diabetes and Digestive and Kidney Diseases provides patient information about acid reflux and GERD and pancreatitis. The CDC also explains when and why colorectal cancer screening is recommended.
Specialties and Digestive Care Approach
A gastroenterology appointment may include a review of symptoms, eating patterns, medications, family history, and earlier laboratory or imaging results. Depending on the concern, Dr. Barrientos may recommend blood work, stool testing, ultrasound, CT imaging, colonoscopy, or upper endoscopy.
Endoscopy allows the digestive tract to be examined directly and can support biopsy, polyp removal, bleeding treatment, or another procedure. Medical treatment may involve medication, dietary adjustments, symptom monitoring, or coordination with another specialist. The recommended plan depends on the diagnosis, test results, symptom severity, and the patient’s overall health. Follow-up may be needed for chronic digestive or liver conditions.
Affiliations
- Houston Regional Gastroenterology Institute
- HCA Houston Healthcare Medical Center
- HCA Houston Healthcare West
- The Woman’s Hospital of Texas
- University of Houston Tilman J. Fertitta Family College of Medicine
Credentials and Education
Dr. Barrientos earned a biomedical science degree from Texas A&M University. He received his medical degree from the University of Texas Health Science Center at Houston in 2006. He completed internal medicine residency training there in 2009, followed by a fellowship in gastroenterology, hepatology, and nutrition in 2012. He is certified in gastroenterology by the American Board of Internal Medicine.
Clinic and Appointment Information
Dr. Barrientos sees patients at 1213 Hermann Drive, Suite 278, Houston, Texas 77004. Other HRGI locations are available throughout Greater Houston. New-patient and telehealth appointments are listed. Patients should call (832) 707-5011 to confirm scheduling, insurance participation, referrals, and preparation instructions for digestive testing.
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