NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Argentina Sinclair

Addiction (Substance Use Disorder) Counselor in South San Francisco, CA · enumerated 2007 · practices at The Latino Commission.

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

National Provider Identifier

1003016189

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Argentina Sinclair
Sex Female
Practice address 301 Grand Ave, South San Francisco, CA, 94080
Fax (650) 244-1447
Enumeration date Jul 18, 2007
Last updated in NPPES Jul 18, 2007

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor 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

Where does Argentina Sinclair practice?
The practice location on file with NPPES is in South San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Argentina Sinclair?
The National Provider Identifier (NPI) for Argentina Sinclair is 1003016189, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-18.