Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marhja L.O. Lanns, O.D.
Optometrist in Chicago, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346434388
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Registry record
Entity type Individual (Type 1)
Name Marhja L.O. Lanns
Credential O.D.
Sex Female
Practice address 7601 S Cicero Ave, #1490, Chicago, IL, 60652
Phone (773) 284-2330
Enumeration date Sep 4, 2007
Last updated in NPPES Sep 4, 2007
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
How do I verify Marhja Lanns's NPI record?
Cross-check NPI 1346434388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1346434388 active?
Yes, as of the latest NPPES snapshot, NPI 1346434388 is active (record last updated 2007-09-04).
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-04.