NPI Portal NPI Lookup & Verification

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

Mrs. Katherine Julie Isidor, DPT

Physical Therapist in Paramus, NJ · enumerated 2007 · practices at Forest Healthcare Associates, P.C..

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

National Provider Identifier

1851444285

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Registry record

Entity type Individual (Type 1)
Name Mrs. Katherine Julie Isidor
Credential DPT
Sex Female
Practice address Paramus, NJ, 07652
Phone (201) 634-6900
Fax (201) 634-6905
Enumeration date Jan 19, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 40QA01175200 (NJ) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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

Where does Katherine Isidor practice?
The practice location on file with NPPES is in Paramus, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Isidor?
The National Provider Identifier (NPI) for Katherine Isidor is 1851444285, 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 2007-07-08.