Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Leigh Markham, LSW
Social Worker in Columbus, OH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568507010
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Registry record
Entity type Individual (Type 1)
Name Leigh Markham
Credential LSW
Sex Female
Practice address 2540 Billingsley Rd, Columbus, OH, 43235
Phone (614) 470-2018
Fax (614) 489-6200
Enumeration date Feb 21, 2007
Last updated in NPPES Jan 16, 2019
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License S.0032127 (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
How do I verify Leigh Markham's NPI record?
Cross-check NPI 1568507010 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1568507010 active?
Yes, as of the latest NPPES snapshot, NPI 1568507010 is active (record last updated 2019-01-16).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-16.