Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Gu, D.O.

Q: What is the NPI number for David Gu?

The National Provider Identifier (NPI) for David Gu is 1225107006, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Alhambra, CA · enumerated 2006.

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

National Provider Identifier

1225107006

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Registry record

Entity type Individual (Type 1)

Name David Gu

Credential D.O.

Sex Male

Practice address 723 S Garfield Ave, Suite 201, Alhambra, CA, 91801

Phone (626) 282-3999

Fax (626) 282-8077

Enumeration date Nov 7, 2006

Last updated in NPPES May 2, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A6851 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
00AX68510	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for David Gu?

The National Provider Identifier (NPI) for David Gu is 1225107006, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Gu practice?

The practice location on file with NPPES is in Alhambra, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-02.