Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Anthony A Zieja, OD
Optometrist in Gilford, NH · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942432323
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Registry record
Entity type Individual (Type 1)
Name Dr. Anthony A Zieja
Credential OD
Sex Male
Practice address 368 Hounsell Ave, Gilford, NH, 03249
Phone (603) 528-2606
Fax (603) 528-2805
Enumeration date Aug 18, 2009
Last updated in NPPES Oct 6, 2010
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| RE7048 | Other | - | GROUP PTAN |
| 30357062 | Medicaid | NH | - |
| 1942432323 | Other | NH | NPI |
| 1295875383 | Other | NH | GROUP NPI |
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 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.
What specialty is Anthony Zieja?
Anthony Zieja 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.
Other providers at this practice address
Browse all → Andrew Garfinkle Ophthalmology Physician · Gilford, NH NPI 1720074982 Douglas Scott Ophthalmology Physician · Gilford, NH NPI 1629064639 Laconia Eye Associates PA Eyewear Supplier · Gilford, NH NPI 1487742292 Laconia Eye Associates PA Ophthalmology Physician · Gilford, NH NPI 1295875383 Andrew Savard Optometrist · Gilford, NH NPI 1528671088
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-06.