Best Dentist San Mateo . Welcome to Deccan Dental of San Mateo, your premier destination for high-quality dental care in the San Mateo area. We are thrilled to announce that we are now accepting PPO insurance dental patients, making it even easier for you to get the care you need. Additionally, we warmly welcome back all returning patients who would like to schedule an appointment with us. We are voted as Best San Mateo Dentist.