Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Maddison J Majeski-Gerken, BCBA
Behavior Analyst in Scottsdale, AZ · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023813524
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Registry record
Entity type Individual (Type 1)
Name Maddison J Majeski-Gerken
Credential BCBA
Sex Female
Practice address 8444 N 90th St Ste 130, Scottsdale, AZ, 85258
Phone (480) 973-3680
Enumeration date Feb 18, 2025
Last updated in NPPES Feb 18, 2025
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-25-79382 (AZ) 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 Maddison Majeski-Gerken?
Maddison Majeski-Gerken 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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-18.