Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHEN J. CLARK DDS
NPI 1477501419
Dentist - General Practice in Amherst, NH

Q: What is Stephen Clark's NPI number?

The NPI number for Stephen Clark is 1477501419. It was assigned to this individual provider in the NPPES registry on May 4, 2006.

Q: What is Stephen Clark's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Clark was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 04, 2006

102 PONEMAH RD, AMHERST, NH 03031(603) 673-7950(603) 672-7647 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Mar 7, 2023 (2 updates tracked since 2023).

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About Dr. Stephen J. Clark Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEPHEN J. CLARK DDS (NPI 1477501419) is an individual general practice provider in Amherst, New Hampshire, licensed in New Hampshire (1566) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1477501419

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. STEPHEN J. CLARKCredential: DDS

Location Address102 PONEMAH RDAmherst, NH 03031-2827

Mailing Address102 Ponemah RdAmherst, NH 03031-2827 · (603) 673-7950 · Fax (603) 672-7647

Phone(603) 673-7950

Fax(603) 672-7647

Sole ProprietorNo

Enumeration DateMay 4, 2006

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1477501419 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in NH · 1566

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

102 PONEMAH RD, Amherst, NH 03031

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Other Identifiers 1

Medicaid89191000NH

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MATTHEW C LEIGHTON D.D.S.

Dentist (General Practice)

102 PONEMAH RD
AMHERST, NH 03031

Hillsborough County (603) 673-7950

KAYSER, CLARK & LEIGHTON, P.C.

Dentist (General Practice)

102 PONEMAH RD
AMHERST, NH 03031

Hillsborough County (603) 673-7950

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Clark's NPI number?

The NPI number for Stephen Clark is 1477501419. It was assigned to this individual provider in the NPPES registry on May 4, 2006.

Where is Stephen Clark located?

Stephen Clark practices at 102 Ponemah Rd, Amherst, NH 03031. The listed phone number is (603) 673-7950.

What is Stephen Clark's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Stephen Clark was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.