Guillermo Donan DDS Return to Fresno Area Businesses Directory Guillermo Donan DDS Claim Listing Return to Fresno Area Businesses Directory Description Details Address 125 E. Barstow Ave. #101 City Fresno State California ZIP Code 93710 Phone 559-222-9923 Listing Category Dentists - Listings Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?