Contact Hernandez Income Tax Service has gained a reputation for providing quality income tax services, notary services, and civil marriage services in Pittsburg, CA. Give us a call today to discuss your needs. Business Address: 3823 Railroad Ave Pittsburg, CA 94565 Call Now ! (925) 473-1227 Business Hours Mon-Sat 11:00am - 8:00pm Find Us On: Your Name (required) Your Email (required) Subject Your Message Please leave this field empty.