Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Nancy Roberts Willis, MSW, LSW
Social Worker in Lafayette Hill, PA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437787637
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Registry record
Entity type Individual (Type 1)
Name Mrs. Nancy Roberts Willis
Credential MSW, LSW
Sex Female
Practice address The Growth and Recovery Center, 452 Germantown Pike, Lafayette Hill, PA, 19444
Phone (610) 828-4298
Enumeration date Apr 1, 2020
Last updated in NPPES Apr 1, 2020
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW001138E (PA) 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.
Frequently asked questions
Is NPI 1437787637 active?
Yes, as of the latest NPPES snapshot, NPI 1437787637 is active (record last updated 2020-04-01).
How do I verify Nancy Willis's NPI record?
Cross-check NPI 1437787637 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 2026-07-13. Provider record last updated 2020-04-01.