Dr. Sidney Charles Ontai, MD

Dr. Sidney Ontai is a family medicine physician with additional expertise in geriatric medicine, bringing over four decades of medical experience to his practice. He earned his medical degree from the University of Hawaii at Manoa and completed his residency training at Arrowhead Regional Medical Center. With 41 years in medicine, Dr. Ontai has developed extensive knowledge in caring for patients across all age groups, with particular focus on older adults and their unique healthcare needs. He is fluent in both Spanish and English, allowing him to serve diverse patient populations effectively.

Dr. Ontai practices at both Detar Hospital North and Detar Hospital Navarro in Victoria, Texas. He specializes in managing complex conditions such as chronic kidney disease and type 2 diabetes, helping patients navigate these ongoing health challenges with comprehensive care plans. His practice also emphasizes preventive medicine through services like adolescent and childhood immunizations, as …well as depression screening to support overall patient wellness. Patients have rated Dr. Ontai an average of 4.2 out of 5, reflecting their confidence in his compassionate and thorough approach to medical care.