His areas of expertise include breast ultrasound, breast cancer, and mammogram (breast X-ray). He is professionally affiliated with ColumbiaDoctors. Dr. Ayala-Bustamante takes Aetna EPO, POMCO, and Blue Cross/Blue Shield, as well as other insurance carriers. He welcomes new patients. He graduated from Cayetano Heredia University. Dr. Ayala-Bustamante's residency was performed at Montreal General Hospital. Dr. Ayala-Bustamante (or staff) speaks Spanish and French.