Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kelsey Welzen

Behavior Analyst in Lake Bluff, IL · enumerated 2019.

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

National Provider Identifier

1285190983

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Registry record

Entity type Individual (Type 1)

Name Kelsey Welzen

Sex Female

Practice address 917 Sherwood Dr Ste 201, Lake Bluff, IL, 60044

Phone (877) 486-4140

Enumeration date Feb 18, 2019

Last updated in NPPES Jun 9, 2020

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-20-42157 (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.

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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 Kelsey Welzen?

Kelsey Welzen 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 2020-06-09.