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Theresa Porter, RADT

Addiction (Substance Use Disorder) Counselor in Fairfield, CA · enumerated 2024.

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

National Provider Identifier

1659138147

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Registry record

Entity type Individual (Type 1)
Name Theresa Porter
Credential RADT
Sex Female
Practice address 1225 Travis Blvd, Fairfield, CA, 94533
Phone (707) 399-9105
Enumeration date Mar 1, 2024
Last updated in NPPES Mar 1, 2024

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License R1518650823 (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.

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Frequently asked questions

Where does Theresa Porter practice?
The practice location on file with NPPES is in Fairfield, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Theresa Porter?
The National Provider Identifier (NPI) for Theresa Porter is 1659138147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-01.