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

Katherine Treiber, PH.D.

Clinical Psychologist in Westborough, MA · enumerated 2012.

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

National Provider Identifier

1285995373

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Registry record

Entity type Individual (Type 1)

Name Katherine Treiber

Credential PH.D.

Sex Female

Practice address Westborough, MA, 01581

Phone (508) 494-1809

Enumeration date Jun 5, 2012

Last updated in NPPES Jun 5, 2012

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

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 9521 (MA) Secondary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 3155 (CT) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 9521 (MA) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3155 (CT) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

Is NPI 1285995373 active?

Yes, as of the latest NPPES snapshot, NPI 1285995373 is active (record last updated 2012-06-05).

How do I verify Katherine Treiber's NPI record?

Cross-check NPI 1285995373 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 2012-06-05.