NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariana Montreuil

Behavior Analyst in Poway, CA · enumerated 2019.

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

National Provider Identifier

1780237107

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ariana Montreuil
Sex Female
Practice address 15708 Pomerado Rd Ste 102n, Poway, CA, 92064
Phone (858) 746-5568
Enumeration date Jul 24, 2019
Last updated in NPPES Jul 24, 2019

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Ariana Montreuil?
Ariana Montreuil is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-24.