Provider Profile

Margaret A. Delmastro, RNP

Unclaimed Profile

About Margaret Delmastro

Listed in the NPI registry as a nurse practitioner — family, Margaret A. Delmastro, RNP practices in Orange, CA. Margaret is also listed as specializing in registered nurse. NPI 1043533110 identifies this record in the national registry.

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

Specialty

Credentials & Licensing

CA · Registered NurseBoard of Registered Nursing
No. 221014DelinquentExpired Nov 30, 2025Since 1972
NPINational Provider Identifier
1043533110Issued 2010

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Common questions

What is Margaret A. Delmastro's specialty?

Margaret A. Delmastro is a nurse practitioner in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Family”.

NPI registry

Where can I find Margaret A. Delmastro?

Margaret A. Delmastro is listed at 1100 W Stewart Dr, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Margaret A. Delmastro?

The number on file is (714) 734-6268. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Margaret A. Delmastro's NPI number?

Margaret A. Delmastro's National Provider Identifier is 1043533110. 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

How long has Margaret A. Delmastro been practicing?

Margaret A. Delmastro has 16+ years experience. Registered with an NPI since 2010. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Margaret A. Delmastro confirmed this information?

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

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