Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sara Lesaffre, MSW,LCSW
Social Worker in Medford, MA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1215437884
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Registry record
Entity type Individual (Type 1)
Name Sara Lesaffre
Credential MSW,LCSW
Sex Female
Practice address 100 George P Hassett Dr, Medford, MA, 02155
Phone (781) 393-4828
Enumeration date Feb 20, 2018
Last updated in NPPES Feb 20, 2018
Taxonomy & licenses
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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
What specialty is Sara Lesaffre?
Sara Lesaffre is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Edward Mccarthy Clinical Social Worker · Medford, MA NPI 1366684573 Jaron Green Counselor · Medford, MA NPI 1831508449 Anne-Laure Davis Counselor · Medford, MA NPI 1831561216 Jia Xing Shi Counselor · Medford, MA NPI 1568916658 Mark Florentino Counselor · Medford, MA NPI 1508305616 Stephanie Caplen Social Worker · Medford, MA NPI 1053877829 Liana Van De Water Counselor · Medford, MA NPI 1437710084 Regine Thiam-Kindler Counselor · Medford, MA NPI 1235780370
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-20.