Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ahna Marie Montague

Psychologist in Vacaville, CA · enumerated 2009.

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

National Provider Identifier

1083856298

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ahna Marie Montague

Sex Female

Practice address Vacaville, CA, 95696

Phone (707) 448-6841

Enumeration date Apr 2, 2009

Last updated in NPPES Nov 10, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY32575 (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

How do I verify Ahna Montague's NPI record?

Cross-check NPI 1083856298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1083856298 active?

Yes, as of the latest NPPES snapshot, NPI 1083856298 is active (record last updated 2021-11-10).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-10.