Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Therese Ellen Mayer, RC, CDP

Addiction (Substance Use Disorder) Counselor in Seattle, WA · enumerated 2007.

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

National Provider Identifier

1972708469

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Registry record

Entity type Individual (Type 1)

Name Ms. Therese Ellen Mayer

Credential RC, CDP

Sex Female

Practice address 400 Yesler Way, Sound Mental Health, Seattle, WA, 98104

Phone (206) 296-1296

Fax (206) 205-6325

Enumeration date Jun 15, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License CP00004988 (WA) Primary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License RC00034975 (WA) Secondary

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

Is NPI 1972708469 active?

Yes, as of the latest NPPES snapshot, NPI 1972708469 is active (record last updated 2025-09-11).

How do I verify Therese Mayer's NPI record?

Cross-check NPI 1972708469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.