Every new California business filing, every dayWinnie Ruo, M.D.
Winnie Ruo MD, Registered Agent
Winnie Ruo, M.D. is a board-certified anesthesiologist practicing in Orange, CA. The LLC is a professional corporation for her medical practice. Multiple healthcare directories (Everyday Health-CARE, NPI Profile, Healthgrades) list her as providing anesthesia services at 681 S Parker St, Orange, CA 92868.
Filed November 13, 2025 · Irvine, CA · Orange County
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California Secretary of State (bizfile Online) · Entity B20250382604 · Retrieved May 14, 2026
About Winnie Ruo, M.D.
Winnie Ruo, M.D., A Professional Corporation filed in California on November 13, 2025, as a medical practice specializing in anesthesiology. The owner, Winnie Ruo MD, filed personally as the registered agent. The company has a modern website, and we estimate its annual revenue between $100,000 and $1 million with 1 to 5 employees. No annual report or EIN is on file yet. The principal location is in Irvine, zip code 92612, and the business footprint is brick-and-mortar.
- Filed in California on November 13, 2025, as a medical practice in anesthesiology.
- Owner Winnie Ruo MD filed personally as the registered agent.
- We estimate revenue between $100K and $1M and 1 to 5 employees.
- Has a modern website, but no annual report or EIN on file.
- Principal location is Irvine, California, with a brick-and-mortar footprint.
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 24, 2026.
One of 119 new businesses registered in Irvine in November 2025, one of 6 medical practice businesses.
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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 Winnie Ruo, M.D. registered?
Winnie Ruo, M.D. was registered as Corp on November 13, 2025 in California.
Where is Winnie Ruo, M.D. located?
Winnie Ruo, M.D. is based in Irvine, CA, 92612, in Orange County.
What type of business is Winnie Ruo, M.D.?
Winnie Ruo, M.D. is classified as a medical practice business (anesthesiology).
Does Winnie Ruo, M.D. have an EIN on file?
No EIN was found on file for Winnie Ruo, M.D. at the time of registration.
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