DayOneLead
How It WorksPricingStatesFAQResearch
Sign inGet started
DayOneLead

Newly registered businesses across the US, enriched with publicly available contact information and updated every day.

Find leads
  • New business leads
  • Lead generation guides
  • How to get business leads
  • New LLC filing leads
  • New business filings
  • Business formation statistics
  • Cold email outreach
  • Docs
  • All states
  • Research
Browse by state
  • Florida
  • New York
  • California
  • Colorado
  • Washington
Popular cities
  • Miami
  • Tampa
  • Orlando
  • New York City
  • Los Angeles
  • Denver
  • Seattle
© 2026 Barn Dog Ventures LLC. All rights reserved.
HomePrivacyData SourcingTermsContactRemove my info
Scout the DayOneLead fox with a California new business filings stampEvery new California business filing, every day
  1. Home
  2. California
  3. Los Angeles
  4. Medical Practice
  5. Chang Sup Lee, M.D.
Medical PracticeOphthalmologyActiveVerified

Chang Sup Lee, M.D.

Chang Sup Lee, Registered Agent

Dr. Chang Sup Lee is an ophthalmologist specializing in retina diseases, practicing at Retina Consultants of Orange County in Fullerton, CA. The LLC is his professional corporation.

Filed February 9, 2026 · Los Angeles, CA

Find new medical practice businesses in Los Angeles, then launch a cold email campaign built for you.

Build my cold email campaign
Scout the DayOneLead fox with a California new business filings stamp

Every new California filing, every day

See how it works

Source

California Secretary of State (bizfile Online) · Entity B20260069936 · Retrieved May 14, 2026

Search the registry for B20260069936 ›JSON record ›

About Chang Sup Lee, M.D.

Chang Sup Lee, M.D., PC filed as a California corporation on February 9, 2026, with owner Chang Sup Lee serving as the registered agent. The ophthalmology practice is based in Los Angeles and its domain was registered over 15 years before the filing, on August 17, 2010. The website is a modern WordPress site. We estimate annual revenue between $1 million and $10 million and 26 to 100 employees. No annual report or EIN on file yet.

  • Domain registered 5,655 days before the filing date, indicating a long-established online presence.
  • Owner filed personally as the registered agent.
  • Website is a modern WordPress site.
  • We estimate revenue of $1M-$10M and 26-100 employees.
  • 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 356 new businesses registered in Los Angeles in February 2026, one of 6 medical practice businesses.

Is this business yours?

It's getting views. Claim the page for free to control what your customers see.

Claim this business

Filing Details

Entity NameChang Sup Lee, M.D., PC
Entity TypeCorp
Entity NumberB20260069936
Filing DateFebruary 9, 2026
Principal AddressLocked
City / State / ZipLos Angeles, CA 90020
EIN on FileNo
Registered AgentChang Sup Lee
Filed ViaSelf-filed (owner is the registered agent)
WebsiteYes · domain registered 5655 days before filing · registrar Cloudflare
Website BuildModern · WordPress
Annual ReportNot yet filed
Estimated Revenue$1M-$10M (estimate)
Estimated Employees26-100 (estimate)
FootprintBrick and mortar (estimate)
First Recorded by DayOneLeadMay 14, 2026 (94 days after filing)

Verified Business Profile

SubcategoryOphthalmology

Contact Information

WebsiteLocked
PhoneLocked
EmailLocked
Start Free TrialVerified contact details are included with a free trial.

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.

Domain RegisteredLocked
Domain AgeLocked
RegistrarLocked
Website PlatformLocked
Start Free TrialDomain and website data is included with a free trial.

Frequently Asked Questions

When was Chang Sup Lee, M.D. registered?

Chang Sup Lee, M.D. was registered as Corp on February 9, 2026 in California.

Where is Chang Sup Lee, M.D. located?

Chang Sup Lee, M.D. is based in Los Angeles, CA, 90020.

What type of business is Chang Sup Lee, M.D.?

Chang Sup Lee, M.D. is classified as a medical practice business (ophthalmology).

Does Chang Sup Lee, M.D. have an EIN on file?

No EIN was found on file for Chang Sup Lee, M.D. at the time of registration.

Who Sells to This Business

Based on the business category, these service providers typically target this type of business.

InsuranceMerchant ServicesMedical SuppliesIt ServicesWeb Designer

Other Medical Practice in Los Angeles

Rayan Elkattah, M.D., Inc.CYRUS K MODY MD MSPHWestside Multi-specialty Medical GroupELMNT IRIsabelle Soh, M.D.Axis Care Medical

More Businesses in Los Angeles

TA BRIDGES FEE OWNER LLC1908 N BEVERLY DR LLCEDDII CARE CA PCBeetle in the Box Inc.BTAK PRINT VENTURES LLC542 Hermosa LLCView all ›

Browse

All businesses in Los Angeles ›All California filings ›

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 ›