Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thaddeus Mroz

Optician in Canandaigua, NY · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457746596

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Registry record

Entity type Individual (Type 1)

Name Thaddeus Mroz

Sex Male

Practice address 400 Fort Hill Ave, Canandaigua, NY, 14424

Phone (585) 393-7293

Fax (585) 393-8286

Enumeration date Apr 6, 2015

Last updated in NPPES Apr 6, 2015

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License C003948-1 (NY) Primary

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.

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Frequently asked questions

What specialty is Thaddeus Mroz?

Thaddeus Mroz is registered in NPPES with the primary taxonomy of Optician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-06.