Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Holm-Andersen, DDS

General Practice Dentistry in Dartmouth, MA · enumerated 2007 · practices at Askew & Seigars, PC.

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

National Provider Identifier

1336266618

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Registry record

Entity type Individual (Type 1)

Name Thomas Holm-Andersen

Credential DDS

Sex Male

Practice address 343 State Rd, Dartmouth, MA, 02747

Phone (508) 994-8300

Fax (508) 994-3514

Enumeration date Mar 23, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 21548 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Thomas Holm-Andersen?

The National Provider Identifier (NPI) for Thomas Holm-Andersen is 1336266618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Holm-Andersen practice?

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

Other providers at this practice address

Browse all →

Askew & Seigars, PC General Practice Dentistry · North Dartmouth, MA NPI 1881745743 Steven Seigars General Practice Dentistry · Dartmouth, MA NPI 1437276706 David Askew General Practice Dentistry · Dartmouth, MA NPI 1831216191

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