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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Marcela Guadalupe Alfaro

Behavior Technician in Oakland, CA · enumerated 2018.

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

National Provider Identifier

1699259770

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Registry record

Entity type Individual (Type 1)
Name Ms. Marcela Guadalupe Alfaro
Sex Female
Practice address 180 Grand Ave Ste 225, Oakland, CA, 94612
Phone (510) 451-5800
Enumeration date Sep 24, 2018
Last updated in NPPES Nov 2, 2018

Taxonomy & licenses

106S00000X Behavior Technician 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.

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Frequently asked questions

What specialty is Marcela Alfaro?
Marcela Alfaro is registered in NPPES with the primary taxonomy of Behavior Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-02.