Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Mentzer, BCBA

Behavior Analyst in Jackson, MI · enumerated 2021.

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

National Provider Identifier

1144814575

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Registry record

Entity type Individual (Type 1)

Name Alexander Mentzer

Credential BCBA

Sex Male

Practice address 1111 W Ganson St, Jackson, MI, 49202

Phone (810) 498-0042

Enumeration date Feb 25, 2021

Last updated in NPPES Apr 13, 2023

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-21-46862 (CO) Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 7401001976 (MI) 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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Alexander Mentzer?

Alexander Mentzer is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-13.