Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Christie Joy De Guzman

Student in an Organized Health Care Education/Training Program in San Leandro, CA · enumerated 2010.

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

National Provider Identifier

1164753109

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Registry record

Entity type Individual (Type 1)

Name Ms. Christie Joy De Guzman

Sex Female

Practice address 2500 Fairmont Dr, San Leandro, CA, 94578

Phone (510) 667-3000

Enumeration date Jan 14, 2010

Last updated in NPPES May 23, 2011

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1164753109 active?

Yes, as of the latest NPPES snapshot, NPI 1164753109 is active (record last updated 2011-05-23).

How do I verify Christie De Guzman's NPI record?

Cross-check NPI 1164753109 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-23.