Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Stephan Eugene Hanowsky, O.D.
Optometrist in Arlington, VA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053761122
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Registry record
Entity type Individual (Type 1)
Name Dr. Stephan Eugene Hanowsky
Credential O.D.
Sex Male
Practice address 1100 S Hayes St, Arlington, VA, 22202
Phone (703) 415-5544
Enumeration date Jun 20, 2016
Last updated in NPPES Aug 31, 2016
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 specialty is Stephan Hanowsky?
Stephan Hanowsky 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 → Daniel Olanrewaju Optometrist · Arlington, VA NPI 1134216112 Daniel Poth, O.D. and Associates, P.C. Eyewear Supplier · Arlington, VA NPI 1699857656 Luxottica of America Inc. Eyewear Supplier · Arlington, VA NPI 1073692810 Ann Poloncak Optometrist · Arlington, VA NPI 1396880159 Naghmeh Zaer Optometrist · Arlington, VA NPI 1417260894 Meetal Umarvadia Optometrist · Arlington, VA NPI 1992063952
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-31.