Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Anna Czerwinski, OD
Optometrist in La Grange, IL · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639061666
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Registry record
Entity type Individual (Type 1)
Name Dr. Anna Czerwinski
Credential OD
Sex Female
Practice address 100 W Calendar Ave, La Grange, IL, 60525
Phone (708) 354-0500
Enumeration date Jul 15, 2025
Last updated in NPPES Apr 27, 2026
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
What is the NPI number for Anna Czerwinski?
The National Provider Identifier (NPI) for Anna Czerwinski is 1639061666, a Type 1 (individual) record in the CMS NPPES registry.
Where does Anna Czerwinski practice?
The practice location on file with NPPES is in La Grange, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-27.