Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Kather

Optician in Canandaigua, NY · enumerated 2019.

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

National Provider Identifier

1598227456

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Registry record

Entity type Individual (Type 1)

Name Michael Kather

Sex Male

Practice address 325 West St Ste 100, Canandaigua, NY, 14424

Phone (585) 394-2020

Enumeration date Apr 1, 2019

Last updated in NPPES Apr 2, 2019

Taxonomy & licenses

156FC0800X Contact Lens Technician/Technologist Eye and Vision Services Providers · License C00367-1 (NY) Secondary

156FC0801X Contact Lens Fitter Eye and Vision Services Providers · License C00367-1 (NY) Secondary

156FX1800X Optician Eye and Vision Services Providers · License 003607-1 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Michael Kather?

The National Provider Identifier (NPI) for Michael Kather is 1598227456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Kather practice?

The practice location on file with NPPES is in Canandaigua, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-02.