# E. A. T. Chang Insurance Services E. A. T. Chang Insurance Services is an ITIN acceptance agent in Diamond Bar, California, United States. ## Details - Address: 1142 South Diamond Bar, \#908, Diamond Bar, California, 91765, United States - Phone: [909-594-6800]() - Also trading as: Eat Chang Insurance Services Inc - Source note: IRS Acceptance Agent Program list for California (page last reviewed 24-Sep-2026; retrieved 2026-10-02). US federal public domain (17 U.S.C. 105). ## Questions ### Where is E. A. T. Chang Insurance Services? E. A. T. Chang Insurance Services is at 1142 South Diamond Bar, \#908, Diamond Bar, California, 91765, United States. ### How do I contact E. A. T. Chang Insurance Services? To contact E. A. T. Chang Insurance Services, call 909-594-6800. ## Source From [U.S. Internal Revenue Service](https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-california), license Public domain (17 U.S.C. 105; irs.gov content use terms request credit), checked 2026-10-03. Last updated October 3, 2026. ## Links - This ITIN acceptance agent on the [web page]() - [Certifying acceptance agents in Diamond Bar]() - [IRS acceptance agents in Diamond Bar]() - [More ITIN acceptance agents in Diamond Bar]()