Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann Jacobson

Q: What is the NPI number for Ann Jacobson?

The National Provider Identifier (NPI) for Ann Jacobson is 1831378033, a Type 1 (individual) record in the CMS NPPES registry.

Registered Nurse in Grass Valley, CA · enumerated 2007.

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

National Provider Identifier

1831378033

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Registry record

Entity type Individual (Type 1)

Name Ann Jacobson

Sex Female

Practice address 500 Crown Point Cir Ste 110, Grass Valley, CA, 95945

Phone (530) 265-1450

Fax (530) 271-0837

Enumeration date Oct 24, 2007

Last updated in NPPES Oct 24, 2007

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 540975 (CA) Primary

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 Ann Jacobson practice?

The practice location on file with NPPES is in Grass Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ann Jacobson?

The National Provider Identifier (NPI) for Ann Jacobson is 1831378033, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-24.