Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sumin Hahm, DDS

Periodontics in Derry, NH · enumerated 2021.

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

National Provider Identifier

1669147484

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Registry record

Entity type Individual (Type 1)

Name Dr. Sumin Hahm

Credential DDS

Sex Male

Practice address 19 Manchester Rd Ste D3, Derry, NH, 03038

Phone (603) 810-7218

Enumeration date Aug 13, 2021

Last updated in NPPES Oct 21, 2024

Taxonomy & licenses

122300000X Dentist Dental Providers · License DN1859159 (MA) Secondary

1223P0300X Periodontics Dental Providers · License 05112 (NH) Secondary

1223P0300X Periodontics Dental Providers · License DN1859159 (MA) 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
05112	Other	NH	DENTAL LICENSE
DN1859159	Other	MA	LICENSE

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

How do I verify Sumin Hahm's NPI record?

Cross-check NPI 1669147484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669147484 active?

Yes, as of the latest NPPES snapshot, NPI 1669147484 is active (record last updated 2024-10-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-21.