Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leslie Callanan, PHD

Psychologist in Flemington, NJ · enumerated 2007.

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

National Provider Identifier

1942345723

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Registry record

Entity type Individual (Type 1)

Name Dr. Leslie Callanan

Credential PHD

Sex Female

Practice address 2100 Wescott Drive, Hunterdon Med Ctr Dept of Child Evaluation, Flemington, NJ, 08822

Phone (908) 996-7901

Fax (908) 788-6581

Enumeration date Feb 20, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 3358 (NJ) Primary

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

Where does Leslie Callanan practice?

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

What is the NPI number for Leslie Callanan?

The National Provider Identifier (NPI) for Leslie Callanan is 1942345723, 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.