Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lucia A Van Diepen

Mental Health Counselor in Hayward, CA · enumerated 2012.

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

National Provider Identifier

1427316967

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Registry record

Entity type Individual (Type 1)

Name Lucia A Van Diepen

Sex Female

Practice address 590 B St, Hayward, CA, 94541

Phone (510) 247-8235

Fax (510) 581-5843

Enumeration date May 2, 2012

Last updated in NPPES May 2, 2012

Taxonomy & licenses

101YM0800X Mental Health Counselor 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 NPI 1427316967 active?

Yes, as of the latest NPPES snapshot, NPI 1427316967 is active (record last updated 2012-05-02).

How do I verify Lucia Van Diepen's NPI record?

Cross-check NPI 1427316967 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 2012-05-02.