Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Caroline Woo

Social Worker in Palo Alto, CA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1760775779

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Registry record

Entity type Individual (Type 1)

Name Caroline Woo

Sex Female

Practice address 3801 Miranda Ave, Palo Alto, CA, 94304

Phone (650) 493-5000

Fax (650) 849-0382

Enumeration date May 24, 2011

Last updated in NPPES Apr 4, 2019

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Caroline Woo?

Caroline Woo is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-04.