Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Barbara Jean Clark, REGISTERED DIETITIAN

Registered Dietitian in Martinez, CA · enumerated 2006.

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

National Provider Identifier

1205800406

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Barbara Jean Clark

Credential REGISTERED DIETITIAN

Sex Female

Practice address Va Northern California Health Care System, 150 Muir Rd, Martinez, CA, 94553

Phone (925) 372-2000

Enumeration date Feb 14, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License R316866 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
R316866	Other	-	REGISTERED DIETITIAN NUMB

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

How do I verify Barbara Clark's NPI record?

Cross-check NPI 1205800406 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1205800406 active?

Yes, as of the latest NPPES snapshot, NPI 1205800406 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Scott Carter Family Medicine Physician · Martinez, CA NPI 1306820980

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