Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Castlen, BS

Counselor in Owensboro, KY · enumerated 2018.

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

National Provider Identifier

1407359300

Verified

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Registry record

Entity type Individual (Type 1)

Name Alexander Castlen

Credential BS

Sex Male

Practice address 1100 Walnut St, Owensboro, KY, 42301

Phone (270) 689-6500

Fax (270) 689-6677

Enumeration date Mar 16, 2018

Last updated in NPPES Mar 16, 2018

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License 9696 (KY) Primary

Other identifiers

Identifier	Type	State	Issuer
9696	Medicaid	KY	-

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

What is the NPI number for Alexander Castlen?

The National Provider Identifier (NPI) for Alexander Castlen is 1407359300, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Castlen practice?

The practice location on file with NPPES is in Owensboro, KY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-16.