Every new California business filing, every dayAu H Bui MD
Anne Tahim, Registered Agent
Dr. Au H. Bui is a board-certified, fellowship-trained surgeon specializing in gastrointestinal, liver, bile duct, and pancreatic diseases. He practices at MemorialCare Todd Cancer Institute in Long Beach, CA, and also appears on Newport Irvine Surgical Specialists.
Filed March 3, 2026 · Santa Ana, CA · Orange County
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California Secretary of State (bizfile Online) · Entity B20260102419 · Retrieved May 13, 2026
About Au H Bui MD
Au H Bui MD A Professional Medical Corp filed as a corporation in California on March 3, 2026, with a principal address in Santa Ana. The owner, Anne Tahim, filed personally as the registered agent. Its domain was registered 29 years before filing, on January 15, 1997, through GoDaddy, and the website is modern, built with Drupal 10. The business was first seen on May 13, 2026, 71 days after filing. No annual report or EIN on file yet. We estimate revenue between $1M and $10M and 1 to 5 employees. There is one related entity with the same owner name.
- Domain registered 29 years before filing, indicating a long-standing online presence.
- Owner Anne Tahim filed personally as the registered agent.
- Website built with Drupal 10, a modern content management system.
- First seen 71 days after filing.
- One related entity with the same owner name.
- We estimate revenue of $1M-$10M and 1-5 employees.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 55 new businesses registered in Santa Ana in March 2026, and the only medical practice business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was Au H Bui MD registered?
Au H Bui MD was registered as Corp on March 3, 2026 in California.
Where is Au H Bui MD located?
Au H Bui MD is based in Santa Ana, CA, 92705, in Orange County.
What type of business is Au H Bui MD?
Au H Bui MD is classified as a medical practice business (surgeon).
Does Au H Bui MD have an EIN on file?
No EIN was found on file for Au H Bui MD at the time of registration.
Who Sells to This Business
Based on the business category, these service providers typically target this type of business.
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