NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrew Au, DDS

Orthodontics and Dentofacial Orthopedics Dentistry in Palo Alto, CA · enumerated 2007.

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

National Provider Identifier

1033255187

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Andrew Au
Credential DDS
Sex Male
Practice address 2345 Yale St, 2nd Floor, Palo Alto, CA, 94306
Phone (650) 328-3388
Fax (650) 351-6498
Enumeration date Jan 29, 2007
Last updated in NPPES Mar 26, 2013

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 226950 (CA) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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 NPI 1033255187 active?
Yes, as of the latest NPPES snapshot, NPI 1033255187 is active (record last updated 2013-03-26).
How do I verify Andrew Au's NPI record?
Cross-check NPI 1033255187 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 2013-03-26.