Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Arianna L Kosakowski, OD
Optometrist in Lunenburg, MA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1730875733
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Registry record
Entity type Individual (Type 1)
Name Dr. Arianna L Kosakowski
Credential OD
Sex Female
Practice address 301 Massachusetts Ave, Lunenburg, MA, 01462
Phone (978) 660-7115
Enumeration date Apr 12, 2023
Last updated in NPPES May 21, 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
Is NPI 1730875733 active?
Yes, as of the latest NPPES snapshot, NPI 1730875733 is active (record last updated 2026-05-21).
How do I verify Arianna Kosakowski's NPI record?
Cross-check NPI 1730875733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → National Vision, Inc. Eyewear Supplier · Lunenburg, MA NPI 1336196492 Wal-Mart Stores East Lp Community/Retail Pharmacy · Lunenburg, MA NPI 1194742494 Wal-Mart Stores East, Lp Eyewear Supplier · Lunenburg, MA NPI 1356422893 Hieppho Huynh Pharmacist · Lunenburg, MA NPI 1487254843 Kara Manchester Pharmacist · Lunenburg, MA NPI 1467052654 Kosakowski Eye Care, P.C. Optometrist · Lunenburg, MA NPI 1922938992
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-21.