Every new California business filing, every dayDong Quach MD
Dr. Dong Quach is a hematology specialist based in Riverside, CA with 46 years of experience. His practice, Dong Quach MD, P.C., accepts multiple insurance plans and welcomes new patients. The WebMD profile lists a phone number and confirms his specialty and location.
Filed November 11, 2025 · Sacramento, CA · Sacramento County
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California Secretary of State (bizfile Online) · Entity B20250378984 · Retrieved May 14, 2026
About Dong Quach MD
Dong Quach MD, P.C. filed in California on November 11, 2025, as a hematology medical practice based in Sacramento. The domain was registered on April 6, 1998, over 27 years before filing, through MarkMonitor. The registered agent is Registered Agents Inc, a formation service. The same registered agent is used by 3,236 other entities, and 6 entities share the same address. The modern website has no identity confirmation field. We estimate annual revenue between $100,000 and $1 million with 1-5 employees and a brick-and-mortar footprint. No annual report or EIN on file yet.
- Domain registered 10,081 days before filing, indicating a very long-standing web presence.
- Registered agent is a formation service used by 3,236 other entities.
- Six entities share the same address.
- We estimate revenue $100K-$1M and 1-5 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 527 new businesses registered in Sacramento in November 2025, one of 12 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 Dong Quach MD registered?
Dong Quach MD was registered as Corp on November 11, 2025 in California.
Where is Dong Quach MD located?
Dong Quach MD is based in Sacramento, CA, 95811, in Sacramento County.
What type of business is Dong Quach MD?
Dong Quach MD is classified as a medical practice business (hematology).
Does Dong Quach MD have an EIN on file?
No EIN was found on file for Dong Quach MD at the time of registration.
Who Sells to This Business
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