Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Olivia Lang, MSW, LSW
Social Worker in Lancaster, OH · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902686173
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Registry record
Entity type Individual (Type 1)
Name Olivia Lang
Credential MSW, LSW
Sex Female
Practice address 2660 Kull Rd, Lancaster, OH, 43130
Phone (740) 687-0835
Fax (740) 687-9391
Enumeration date Oct 4, 2023
Last updated in NPPES Feb 5, 2026
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License S.2309802 (OH) 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 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.
What specialty is Olivia Lang?
Olivia Lang 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-05.