I moved here from out of state. I went in to Dr. Guzman for a simple cleaning. (I have my teeth cleaned every six months.) Dr. Guzman seemed like a good guy. However, his office over billed me. They performed services that I did not request and that the insurance company will not pay for. They added many surprise charges to my bill. Dr. Guzman's office also had me pay for services that my insurance company's schedule of benefits list as "no charge". I have spent hours on the phone with Dr. Guzman's office but they refuse to work with me on it.