Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Nass

Social Worker in Festus, MO · enumerated 2019.

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

National Provider Identifier

1477013928

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Registry record

Entity type Individual (Type 1)

Name Heather Nass

Sex Female

Practice address 227 Main St, Festus, MO, 63028

Phone (636) 931-2700

Enumeration date Mar 21, 2019

Last updated in NPPES Mar 21, 2019

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 2018045076 (MO) 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 Heather Nass's NPI record?

Cross-check NPI 1477013928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477013928 active?

Yes, as of the latest NPPES snapshot, NPI 1477013928 is active (record last updated 2019-03-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-21.