Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon Michael Lazaleta Duey

Psychiatric/Mental Health Nurse Practitioner in Berkeley, CA · enumerated 2008.

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

National Provider Identifier

1881858868

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Registry record

Entity type Individual (Type 1)

Name Jon Michael Lazaleta Duey

Sex Male

Practice address 2105 Martin Luther King Jr Way Fl 1, Berkeley, CA, 94704

Phone (888) 588-8995

Fax (510) 756-0812

Enumeration date Jul 18, 2008

Last updated in NPPES Apr 17, 2025

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

163W00000X Registered Nurse Nursing Service Providers · License 658352-1 (NY) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 95035248 (CA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95001898 (CA) 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

How do I verify Jon Michael Duey's NPI record?

Cross-check NPI 1881858868 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881858868 active?

Yes, as of the latest NPPES snapshot, NPI 1881858868 is active (record last updated 2025-04-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-17.