Dr. Silvana Giannelli

Dr. Silvana Giannelli is a dedicated Endocrinologist with 15 years of experience specializing in Endocrinology, Diabetes, and Metabolism. Board-certified in Internal Medicine, Endocrinology, and Obesity Medicine, she is committed to providing expert care to her patients. As an Associate Professor and attending physician at Loma Linda University Medical Center, she is passionate about education and advancing medical knowledge. With a special interest in bone health, Dr. Giannelli strives to improve patient outcomes through comprehensive and compassionate care.

Beyond medicine, she enjoys spending time with her husband and two children in Rancho Cucamonga. An avid reader and travel enthusiast, she values continuous learning and new experiences.

With years of experience in healthcare, Leslie Diaz brings both knowledge and compassion to her role as Office Manager at Endocrine Advantage. Married and deeply committed to her family, Leslie understands the importance of care that is both professional and personal.

Leslie Diaz