Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Curtis SIU MD Inc

Organization Internal Medicine Physician · NPI 1316880586

Curtis SIU MD Inc is an Internal Medicine Physician in Laguna Hills, California. Registered with an NPI since 2026.

In the registry since
2026
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

23521 Paseo De Valencia Ste 108
Laguna Hills, CA 92653-3137
Phone: (949) 588-7262
Fax: (949) 588-2167
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1316880586
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Curtis Siu — President · (949) 872-5227
NPI enumeratedApril 13, 2026
Last updated in NPPESMay 1, 2026
Certification dateMay 1, 2026
Mailing address23521 Paseo De Valencia Ste 108, Laguna Hills, CA 92653-3137

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