NPI Portal NPI Lookup & Verification

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

Tonia Naleen Herrero, MPS, ATR-BC, LCAT

Art Therapist in Oakland, CA · enumerated 2019 · practices at East Bay Art Therapy.

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

National Provider Identifier

1104383678

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Tonia Naleen Herrero
Credential MPS, ATR-BC, LCAT
Sex Female
Practice address Oakland, CA, 94610
Enumeration date Feb 20, 2019
Last updated in NPPES Apr 19, 2022

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

Taxonomy & licenses

221700000X Art Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 18-101 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

What is the NPI number for Tonia Herrero?
The National Provider Identifier (NPI) for Tonia Herrero is 1104383678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Tonia Herrero practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-19.