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

Clarissa Dorr, PPS CREDENTIAL

School Counselor in Montclair, CA · enumerated 2024.

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

National Provider Identifier

1356178255

Verified

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Registry record

Entity type Individual (Type 1)

Name Clarissa Dorr

Credential PPS CREDENTIAL

Sex Female

Practice address Montclair, CA, 91763

Phone (909) 624-0029

Enumeration date Sep 16, 2024

Last updated in NPPES Sep 16, 2024

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

Taxonomy & licenses

101YS0200X School Counselor Behavioral Health & Social Service Providers · License 240161424 (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 Clarissa Dorr practice?

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

What is the NPI number for Clarissa Dorr?

The National Provider Identifier (NPI) for Clarissa Dorr is 1356178255, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-16.