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Provider Profile

Diana K. Callahan, NP

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At a glance

About Diana Callahan

Diana K. Callahan, NP is a nurse practitioner based in Simi Valley, CA. This record is held for California licence 95041636 · Nurse Practitioner.

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

Specialty

Nurse Practitioner (Primary)

Credentials & Licensing

CA · Registered NurseBoard of Registered Nursing
No. 766241CurrentExpires Sep 2027Since 2010
CA · Nurse Practitioner FurnishingBoard of Registered Nursing
No. 95041636CurrentExpires Sep 2027Since 2026
NPINone on record
Licence-only provider

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Common questions

What is Diana K. Callahan's specialty?

Diana K. Callahan is a nurse practitioner in Simi Valley, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where can I find Diana K. Callahan?

Diana K. Callahan is listed at Simi Valley, CA 93063. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Diana K. Callahan's NPI number?

Diana K. Callahan's National Provider Identifier is 94004095041636. 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 Diana K. Callahan confirmed this information?

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

Guide.md

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