Dr. Guillermo Donan, D.D.S

Your Dedicated Health Care Provider

About Dr. Donan

A Leader in Comprehensive Dental Care in Fresno

Dr. Guillermo Donan is a highly respected dentist in Fresno, CA, known for his compassionate approach, technical skill, and commitment to clinical excellence. He graduated from UEES, El Salvador in 1994 and continued his education in periodontics at Universidad Complutense de Madrid, Spain.

Committed to staying at the forefront of dentistry, Dr. Donan regularly pursues advanced training in the latest techniques and technologies. He is a member of the International Congress of Oral Implantologists (ICOI), the American Orthodontic Society (AOS), the American Dental Association (ADA), the California Dental Association (CDA) and the Fresno-Madera Dental Society (FMDS). 

This continuous learning ensures that patients at Smiles By Dr. Donan receive the most innovative and effective care available, from routine dental cleanings to complex smile makeovers and dental implants. His passion for transforming smiles and improving lives truly defines the patient experience at our Fresno clinic.

Dr. Guillermo Donan is married to Dr. Silvia Donan and lives in Fresno, CA, with their daughters Sylvia Elizabeth and Sarah Alexandra. He enjoys playing guitar, singing, and skiing. 

Meet Our Team

Our team of dental experts is devoted to delivering outstanding care and ensuring every patient has a positive experience.

Meet our team

Our dedicated, caring professionals

Book your appointment today

Ready to achieve the healthy, beautiful smile you deserve? Contact Smiles By Dr. Donan in Fresno, CA to schedule your consultation. We're excited to welcome you to our dental family.