Every new California business filing, every dayYi-Jen Chen
YI-JEN CHEN, Registered Agent
This LLC is the professional corporation of Dr. Yi-Jen Chen, a physician practicing at Keck Medicine of USC. The Keck Medicine website lists her as a provider with contact information and an address in Arcadia, CA. Multiple doctor directory sites confirm her medical practice, indicating an active, real business.
Filed November 4, 2025 · Whittier, CA · Los Angeles County
Find new medical practice businesses in Whittier, then launch a cold email campaign built for you.
Every new California filing, every day
See how it worksSource
California Secretary of State (bizfile Online) · Entity B20250369554 · Retrieved May 13, 2026
About Yi-Jen Chen
Yi-Jen Chen, MD, PhD, Inc. was filed in California on November 4, 2025, as a medical practice. The owner, Yi-Jen Chen, filed personally as the registered agent. The company's domain was registered on June 23, 2011, over 14 years before the filing, through GoDaddy. We estimate the practice generates $1M-$10M in revenue with 1-5 employees. The website is modern and confirms a brick-and-mortar footprint. No annual report or EIN on file yet.
- Domain registered 14 years before the company filing.
- Owner filed personally as the registered agent.
- We estimate revenue of $1M-$10M and 1-5 employees.
- Website confirms a brick-and-mortar medical practice.
- No annual report or EIN on file yet.
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 25 new businesses registered in Whittier in November 2025, and the only medical practice business registered there that month.
Is this business yours?
It's getting views. Claim the page for free to control what your customers see.
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 Yi-Jen Chen registered?
Yi-Jen Chen was registered as Corp on November 4, 2025 in California.
Where is Yi-Jen Chen located?
Yi-Jen Chen is based in Whittier, CA, 90603, in Los Angeles County.
What type of business is Yi-Jen Chen?
Yi-Jen Chen is classified as a medical practice business (physician).
Does Yi-Jen Chen have an EIN on file?
No EIN was found on file for Yi-Jen Chen at the time of registration.
Who Sells to This Business
Based on the business category, these service providers typically target this type of business.
6 companies similar to Yi-Jen Chen registered in Los Angeles County in the last 30 days
Verified owner emails, and we build the campaign for you.
Turn fresh medical practice businesses into your next customers
We find newly registered businesses, verify their contact details, and build the campaign. You review everything before anything sends.
Build My Campaign Free ›