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Provider Profile

Katharine Costello, LMFT

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At a glance

About Katharine Costello

Katharine Costello, LMFT is a marriage & family therapist based in Tustin, CA. The provider's National Provider Identifier (NPI) is 1457269508.

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

Specialty

Credentials & Licensing

CA · Licensed Marriage and Family TherapistCalifornia Board of Behavioral Sciences
No. 165040CurrentExpires Aug 2028Since 2026
NPINational Provider Identifier
1457269508Issued 2026

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Common questions

What kind of doctor is Katharine Costello?

Katharine Costello is a marriage and family therapist in Tustin, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Marriage & Family Therapist”.

NPI registry

What is Katharine Costello's address?

Katharine Costello is listed at 232 W Main St Ste 103, Tustin, CA 92780. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Katharine Costello?

The number on file is (714) 584-9345. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Katharine Costello's NPI number?

Katharine Costello's National Provider Identifier is 1457269508. 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 Katharine Costello confirmed this information?

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

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