Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Natasha Weltz

Behavior Analyst in Sioux City, IA · enumerated 2015 · practices at Mid Step Services.

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

National Provider Identifier

1598131682

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Registry record

Entity type Individual (Type 1)

Name Natasha Weltz

Sex Female

Practice address 709 Iowa St, Sioux City, IA, 51105

Phone (712) 522-2961

Fax (712) 522-4664

Enumeration date Aug 12, 2015

Last updated in NPPES Aug 12, 2015

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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

How do I verify Natasha Weltz's NPI record?

Cross-check NPI 1598131682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598131682 active?

Yes, as of the latest NPPES snapshot, NPI 1598131682 is active (record last updated 2015-08-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-12.