Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
George D Chen, M.D.
Ophthalmology Physician in Lodi, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992812739
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name George D Chen
Credential M.D.
Sex Male
Practice address 521 S Ham Ln, Suite A, Lodi, CA, 95242
Phone (209) 334-5886
Fax (209) 334-5281
Enumeration date Aug 25, 2006
Last updated in NPPES Jun 3, 2008
Taxonomy & licenses
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G11125 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G111250 | Medicaid | CA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1992812739 active?
Yes, as of the latest NPPES snapshot, NPI 1992812739 is active (record last updated 2008-06-03).
How do I verify George Chen's NPI record?
Cross-check NPI 1992812739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-03.