Physician Profile

Mary A. O'Callaghan, M.D.

Unclaimed Profile

About Dr. O'callaghan

Mary A. O'Callaghan, M.D. is a healthcare provider in El Segundo, CA specializing in family medicine. This provider record is associated with NPI 1932489408.

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

Specialty

Family Medicine (Primary)

Credentials & Licensing

CA licenseAFE19605
CA Physician and Surgeon A
Medical Board of CaliforniaNo. 19605 · Delinquent · expires Feb 28, 2022 · since 1961
NPI1932489408
NPI issued08/27/2011

Licence standing is from the California Department of Consumer Affairs public licensee file, read on Sep 26, 2026. The board is the record of authority; check it there before relying on it.

Common questions

What is Mary A. O'Callaghan's specialty?

Mary A. O'Callaghan is a family doctor in El Segundo, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.

NPI registry

Where can I find Mary A. O'Callaghan?

Mary A. O'Callaghan is listed at 845 Maryland St, El Segundo, CA 90245. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Mary A. O'Callaghan?

The number on file is (310) 640-9604. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Mary A. O'Callaghan's NPI number?

Mary A. O'Callaghan's National Provider Identifier is 1932489408. 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 Mary A. O'Callaghan been practicing?

Mary A. O'Callaghan has 15+ years experience. Registered with an NPI since 2011. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Mary A. O'Callaghan confirmed this information?

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

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