Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Natalie Elfner
Behavior Technician in Homewood, IL · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821934068
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Registry record
Entity type Individual (Type 1)
Name Natalie Elfner
Sex Female
Practice address 935 175th St Ste 101, Homewood, IL, 60430
Phone (708) 901-0612
Fax (708) 443-9443
Enumeration date Apr 28, 2026
Last updated in NPPES Apr 28, 2026
Taxonomy & licenses
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 Natalie Elfner?
Natalie Elfner is registered in NPPES with the primary taxonomy of Behavior Technician. 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 2026-04-28.