Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Kathleen Denise Duncan, DDS

General Practice Dentistry in Gold River, CA · enumerated 2006.

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

National Provider Identifier

1053411199

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Registry record

Entity type Individual (Type 1)

Name Ms. Kathleen Denise Duncan

Credential DDS

Sex Female

Practice address Gold River, CA, 95670

Phone (916) 858-0565

Fax (916) 858-0563

Enumeration date Sep 25, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 44672 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
G93110-01	Other	CA	MEDI-CAL DENTAL PROGRAM

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 1053411199 active?

Yes, as of the latest NPPES snapshot, NPI 1053411199 is active (record last updated 2007-07-08).

How do I verify Kathleen Duncan's NPI record?

Cross-check NPI 1053411199 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.