Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dorothy Ladyzhensky, OTD

Occupational Therapist in Riverdale, NJ · enumerated 2022.

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

National Provider Identifier

1265189294

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Registry record

Entity type Individual (Type 1)

Name Dorothy Ladyzhensky

Credential OTD

Sex Female

Practice address 7 Newark Pompton Tpke, Riverdale, NJ, 07457

Phone (973) 831-1100

Enumeration date Mar 9, 2022

Last updated in NPPES Mar 9, 2022

Taxonomy & licenses

225XP0019X Physical Rehabilitation Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 46TR01047300 (NJ) Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 46TR01047300 (NJ) 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

What is the NPI number for Dorothy Ladyzhensky?

The National Provider Identifier (NPI) for Dorothy Ladyzhensky is 1265189294, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dorothy Ladyzhensky practice?

The practice location on file with NPPES is in Riverdale, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-09.