NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. George Sydney Lau, M.D.

Hospitalist Physician in Mountain View, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1508922857

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. George Sydney Lau
Credential M.D.
Sex Male
Practice address 701 E El Camino Real, Mountain View, CA, 94040
Phone (650) 934-7808
Fax (650) 988-8320
Enumeration date Dec 29, 2006
Last updated in NPPES Feb 24, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A52510 (CA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A52510 (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
91-1800855 Other CA TAX ID
A52510 Other CA CA LICENSE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is George Lau?
George Lau is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-24.