Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Asa Willmarth
Behavior Analyst in Livonia, MI · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821622416
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Registry record
Entity type Individual (Type 1)
Name Alexander Asa Willmarth
Sex Male
Practice address 31557 Schoolcraft Road Suite 200, 31557 Schoolcraft Road Suite 200, Livonia, MI, 48150
Phone (734) 474-2958
Enumeration date Feb 24, 2020
Last updated in NPPES Mar 17, 2025
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 7401002709 (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.
Frequently asked questions
What specialty is Alexander Willmarth?
Alexander Willmarth 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.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-17.