Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark A Nash, DDS

Dentist in Fort Bragg, CA · enumerated 2007.

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

National Provider Identifier

1790809259

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark A Nash

Credential DDS

Sex Male

Practice address 205 South St, Fort Bragg, CA, 95437

Phone (707) 964-1251

Fax (707) 961-2722

Enumeration date Mar 19, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 33896 (CA) 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
FHC03967F	Medicaid	CA	-

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

Is NPI 1790809259 active?

Yes, as of the latest NPPES snapshot, NPI 1790809259 is active (record last updated 2007-07-08).

How do I verify Mark Nash's NPI record?

Cross-check NPI 1790809259 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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