Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Deborah Handler, OT

Mental Health Occupational Therapist in Waltham, MA · enumerated 2023.

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

National Provider Identifier

1962289298

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Registry record

Entity type Individual (Type 1)

Name Ms. Deborah Handler

Credential OT

Sex Female

Practice address Wayside Youth and Family Services, 431 River St, Waltham, MA, 02453

Phone (781) 891-0555

Enumeration date Sep 11, 2023

Last updated in NPPES Sep 11, 2023

Taxonomy & licenses

225XM0800X Mental Health Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2454 (MA) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Deborah Handler's NPI record?

Cross-check NPI 1962289298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1962289298 active?

Yes, as of the latest NPPES snapshot, NPI 1962289298 is active (record last updated 2023-09-11).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-11.