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Provider Profile

Catherine Siu

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At a glance

About Catherine Siu

The NPI registry lists Catherine Siu as a student in an organized health care education program, in Stony Brook, NY. This provider record is associated with NPI 1396684593.

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

Credentials & Licensing

NPINational Provider Identifier
1396684593Issued 2026

As reported to the NPI registry ↗

Common questions

What is Catherine Siu's specialty?

Catherine Siu is a medical trainee in Stony Brook, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.

NPI registry

Where can I find Catherine Siu?

Catherine Siu is listed at 101 Nicolls Rd, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Catherine Siu?

The number on file is (631) 216-9094. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Catherine Siu?

Catherine Siu's National Provider Identifier is 1396684593. 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

Is Catherine Siu's profile verified?

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

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

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