NPI Portal NPI Lookup & Verification

Christopher Williams

Christopher Williams is a Behavior Analyst provider (Behavior Analyst) practicing in Springfield, MA, registered in the NPPES registry with NPI 1619357589 since 2015.

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NPI 1619357589
Entity type Individual (Type 1)
Name Christopher Williams
Sex Male
Practice address 106 SUFFOLK ST, Springfield, MA, 01109
Phone 4133556664
Enumeration date 2015-06-04
Last updated in NPPES 2015-06-04

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary
Copy-ready billing details
Provider: Christopher Williams
NPI: 1619357589
Taxonomy: 103K00000X (Behavior Analyst)
Address: 106 SUFFOLK ST, Springfield, MA, 01109

Verify this record

Cross-check NPI 1619357589 against the authoritative CMS record: view Christopher Williams on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1619357589 active?
Yes — as of the latest NPPES snapshot, NPI 1619357589 is active (record last updated 2015-06-04).
How do I verify Christopher Williams's NPI record?
Cross-check NPI 1619357589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-06-04.