Patient reviews placed Dr. Sarmiento at an average of 5.0 stars out of 5. Areas of expertise for Dr. Sarmiento include diabetes, primary care, and gastrointestinal problems (digestive disorders). He is professionally affiliated with Houston Methodist. He takes Aetna EPO, Blue Cross/Blue Shield, and Coventry, in addition to other insurance carriers. Dr. Sarmiento is open to new patients. After completing medical school at Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine, he performed his residency at Womack Army Medical Center.