Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Alan Thomas Lamb, LCSW

Clinical Social Worker in Watsonville, CA · enumerated 2007.

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

National Provider Identifier

1801091871

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Registry record

Entity type Individual (Type 1)

Name Mr. Alan Thomas Lamb

Credential LCSW

Sex Male

Practice address 1430 Freedom Blvd, Watsonville, CA, 95076

Phone (831) 763-8200

Fax (831) 454-4663

Enumeration date Jun 19, 2007

Last updated in NPPES Mar 6, 2014

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS 13369 (CA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
LCS13369	Other	CA	PROFESSIONAL LICENSE#
ZZZ91891Z	Other	CA	MEDICARE GROUP PTAN#
ZZZ92069Z	Other	CA	MEDICARE GROUP PTAN#
ZZZ91892Z	Other	CA	MEDICARE GROUP PTAN#

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 1801091871 active?

Yes, as of the latest NPPES snapshot, NPI 1801091871 is active (record last updated 2014-03-06).

How do I verify Alan Lamb's NPI record?

Cross-check NPI 1801091871 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 2014-03-06.