Organization Profile

Curtis Siu MD INC

Unclaimed Profile

About Curtis Siu MD INC

Curtis Siu MD INC is a healthcare organization in Laguna Hills, CA, registered under internal medicine. The organization's National Provider Identifier (NPI) is 1316880586.

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

Practice Size

TypeGroup practice
Providers registered at this building2

Counted from individual NPI records registered at the same street address; a shared building can inflate this.

Providers in This Building & Nearby

From registry street addresses: providers filed at this building, which can include unrelated practices sharing it.

Specialty

Internal Medicine (Primary)

Credentials & Licensing

NPINational Provider Identifier
1316880586Issued 2026

As reported to the NPI registry ↗

Common questions

What does Curtis Siu MD INC specialize in?

Curtis Siu MD INC is an internist in Laguna Hills, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where is Curtis Siu MD INC located?

Curtis Siu MD INC is listed at 23521 Paseo de Valencia Ste 108, Laguna Hills, CA 92653. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Curtis Siu MD INC's phone number?

The number on file is (949) 588-7262. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Curtis Siu MD INC's NPI number?

Curtis Siu MD INC's National Provider Identifier is 1316880586. 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 Curtis Siu MD INC confirmed this information?

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

Guide.md

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Manage this listing? Log in or create an account, then click “This is my practice and I manage it” here. A verified physician whose registry address matches this location is approved instantly; everyone else is reviewed by a person.

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