Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ewa M Kowalczyk
Optometrist in Fair Lawn, NJ · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992480032
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Registry record
Entity type Individual (Type 1)
Name Ewa M Kowalczyk
Sex Female
Practice address 4-14 Saddle River Rd Ste 202, Fair Lawn, NJ, 07410
Phone (201) 797-2747
Enumeration date Jun 16, 2023
Last updated in NPPES Jul 11, 2023
Taxonomy & licenses
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 Ewa Kowalczyk?
Ewa Kowalczyk is registered in NPPES with the primary taxonomy of Optometrist. 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-11.