Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Margaret Willis, RBT
Behavior Technician in Longview, TX · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619500451
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Registry record
Entity type Individual (Type 1)
Name Margaret Willis
Credential RBT
Sex Female
Practice address 701 Glencrest Ln Ste A, Longview, TX, 75601
Phone (903) 686-9009
Enumeration date Feb 20, 2020
Last updated in NPPES Feb 20, 2020
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
Is NPI 1619500451 active?
Yes, as of the latest NPPES snapshot, NPI 1619500451 is active (record last updated 2020-02-20).
How do I verify Margaret Willis's NPI record?
Cross-check NPI 1619500451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Danielle Mulder Behavior Analyst · Longview, TX NPI 1205331204 Nicholas Mcdaniel Behavior Technician · Longview, TX NPI 1669004800 Jordan Pointer Behavior Technician · Longview, TX NPI 1124650361 D'Asa Pruitt Behavior Technician · Longview, TX NPI 1689206864 Amy Rutland Behavior Technician · Longview, TX NPI 1457983629 Ebonie Spigner Behavior Technician · Longview, TX NPI 1497388235 Datoya Patterson Behavior Technician · Longview, TX NPI 1932732765 Hunter Wink Behavior Technician · Longview, TX NPI 1407480098
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-20.