Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madelyn Nadine Nelson, BCBA

Behavior Analyst in Champaign, IL · enumerated 2021.

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

National Provider Identifier

1447839089

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Registry record

Entity type Individual (Type 1)

Name Madelyn Nadine Nelson

Credential BCBA

Sex Female

Practice address 4112 Fieldstone Rd, Suite B, Champaign, IL, 61822

Phone (888) 308-3728

Enumeration date Apr 2, 2021

Last updated in NPPES Aug 8, 2023

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers · License 20-140248 Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-23-67437 (IL) 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.

Read the full guide → Validate an NPI →

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 Madelyn Nelson?

Madelyn Nelson 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 2023-08-08.