Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Craig Nicholas Hartenstein, OD

Optometrist in Hampton, NH · enumerated 2017 · practices at Hampton Eyecare Associates, Pllc.

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

National Provider Identifier

1437689825

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Registry record

Entity type Individual (Type 1)

Name Craig Nicholas Hartenstein

Credential OD

Sex Male

Practice address 760 Lafayette Rd, Hampton, NH, 03842

Phone (603) 926-5471

Enumeration date Jun 18, 2017

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 947 (NH) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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 Craig Hartenstein practice?

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

What is the NPI number for Craig Hartenstein?

The National Provider Identifier (NPI) for Craig Hartenstein is 1437689825, a Type 1 (individual) record in the CMS NPPES registry.

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Hampton Eyecare Associates, Pllc Optometrist · Hampton, NH NPI 1427159235 Julie Smith Mechanotherapist · Hampton, NH NPI 1710124169

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.