Dr. Donald Lim Ong, MD

Dr. Donald Ong is a family medicine physician who also practices surgery, bringing over three decades of medical experience to his patients in Vista, California. He earned his medical degree from Chicago Medical School at Rosalind Franklin University of Medicine and Sciences, building a strong foundation for his comprehensive approach to healthcare. With 33 years in practice, Dr. Ong has developed expertise across multiple areas of medicine, allowing him to provide both primary care and surgical services. He communicates with patients in both English and Spanish.

Dr. Ong practices at Vista Community Clinic locations throughout Vista, California, where he focuses on managing conditions such as high cholesterol in children and teenagers, colon polyps, and type 2 diabetes. His surgical skills include performing lower gastrointestinal endoscopy procedures to diagnose and treat digestive system issues. He also incorporates physical therapy and strength training into patient care plans when …appropriate. Patients have given Dr. Ong an average rating of 4.5 out of 5 stars, reflecting their confidence in his comprehensive medical care.