Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Tell Perry Williams IV, MSW

Social Worker in Downingtown, PA · enumerated 2022.

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

National Provider Identifier

1831814730

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Registry record

Entity type Individual (Type 1)

Name Mr. Tell Perry Williams IV

Credential MSW

Sex Male

Practice address 38 W Lancaster Ave, Downingtown, PA, 19335

Phone (484) 739-0615

Enumeration date Oct 4, 2022

Last updated in NPPES Jan 21, 2026

Taxonomy & licenses

104100000X Social Worker 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Tell Williams's NPI record?

Cross-check NPI 1831814730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831814730 active?

Yes, as of the latest NPPES snapshot, NPI 1831814730 is active (record last updated 2026-01-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-21.