Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark A. Horvath, DDS

Q: What type of organization is Mark A. Horvath, DDS?

Mark A. Horvath, DDS is registered in NPPES as a Dentist (its primary provider taxonomy).

Dentist in Gilford, NH · enumerated 2007 · authorized official Mark Horvath, Dentist.

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

National Provider Identifier

1851509871

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Mark A. Horvath, DDS

Practice address 401 Gilford Ave Ste 245, Gilford, NH, 03249

Phone (603) 524-7677

Fax (603) 524-7314

Enumeration date May 21, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

122300000X Dentist Dental Providers · License 2086 (NH) Primary

Authorized official

Name Mark Horvath

Title Dentist

Phone (603) 524-7677

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 type of organization is Mark A. Horvath, DDS?

Mark A. Horvath, DDS is registered in NPPES as a Dentist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.