NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Barbara Belair Marchi, N.P.

Women's Health Nurse Practitioner in Eureka, CA · enumerated 2006.

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

National Provider Identifier

1386684579

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Barbara Belair Marchi
Credential N.P.
Sex Female
Practice address 1930 Myrtle Ave, Eureka, CA, 95501
Phone (707) 443-3557
Fax (707) 443-3971
Enumeration date Jun 7, 2006
Last updated in NPPES Mar 22, 2010

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 245291 (CA) Primary
NP — Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier Type State Issuer
00G654330 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

Where does Barbara Marchi practice?
The practice location on file with NPPES is in Eureka, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Barbara Marchi?
The National Provider Identifier (NPI) for Barbara Marchi is 1386684579, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-22.