Recommend a St. Joseph Health Provider: P. Benson Vassantachart, MD Complete the form below to send the provider profile page to your friend. (714) 446-7536 P. Benson Vassantachart, MD Allied Anesthesia - Fullerton 101 E Valencia Dr Fullerton, CA 92835 View Profile (714) 446-7536 Primary Specialty Anesthesiology Page Link www.stjhs.org/find-a-doctor/v/p-benson-vassantachart-md/?PhysicianID= Your Name * Your Email * Friend's Name * Friend's Email * Message Submit *This form is not secure. For your security, please do not share personal information, health information, social security or credit card numbers.