Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sam Ahn, DMD

Q: What is the NPI number for Sam Ahn?

The National Provider Identifier (NPI) for Sam Ahn is 1639599897, a Type 1 (individual) record in the CMS NPPES registry.

Dentist in Dorchester, MA · enumerated 2014.

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

National Provider Identifier

1639599897

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Registry record

Entity type Individual (Type 1)

Name Dr. Sam Ahn

Credential DMD

Sex Female

Practice address 653 Columbia Rd, Dorchester, MA, 02125

Phone (617) 825-9100

Enumeration date Apr 25, 2014

Last updated in NPPES Dec 29, 2015

Taxonomy & licenses

122300000X Dentist Dental Providers · License 60915 (KS) Secondary

122300000X Dentist Dental Providers · License 03679680 (CT) Secondary

122300000X Dentist Dental Providers · License DN1857100 (MA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Where does Sam Ahn practice?

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

What is the NPI number for Sam Ahn?

The National Provider Identifier (NPI) for Sam Ahn is 1639599897, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-29.