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Provider Profile

Nancy J. Duffy

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At a glance

About Nancy Duffy

Nancy J. Duffy is a psychologist practicing in Glendora, CA. This provider record is associated with NPI 1811805526.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Psychologist (Primary)

Credentials & Licensing

CA licenceAs reported to the NPI registry
No. 2291As reported
NPINational Provider Identifier
1811805526Issued 2026

As reported to the NPI registry ↗

Common questions

What does Nancy J. Duffy specialize in?

Nancy J. Duffy is a psychologist in Glendora, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Nancy J. Duffy located?

Nancy J. Duffy is listed at 535 Richardson Ln, Glendora, CA 91741. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Nancy J. Duffy's phone number?

The number on file is (626) 622-0142. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Nancy J. Duffy's NPI number?

Nancy J. Duffy's National Provider Identifier is 1811805526. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Has Nancy J. Duffy confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Nancy J. Duffy. If this is you, claiming it is free.

Guide.md

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