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

Annette Ko, DDS

Periodontics in Chevy Chase, MD · enumerated 2023.

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

National Provider Identifier

1205511227

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Registry record

Entity type Individual (Type 1)

Name Annette Ko

Credential DDS

Sex Female

Practice address Chevy Chase, MD, 20815

Phone (949) 910-3750

Enumeration date Jun 19, 2023

Last updated in NPPES Mar 26, 2025

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License DS044064 (PA) Secondary

1223P0300X Periodontics Dental Providers · License DEN2000428 (DC) Secondary

1223P0300X Periodontics Dental Providers · License 401419274 (VA) Secondary

1223P0300X Periodontics Dental Providers · License 18502 (MD) 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.

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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 Annette Ko?

Annette Ko is registered in NPPES with the primary taxonomy of Periodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-26.