Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joanna Cotter, OD

Optometrist in Greenfield, WI · enumerated 2018 · practices at Luxottica of America Inc..

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

National Provider Identifier

1922584846

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Registry record

Entity type Individual (Type 1)

Name Joanna Cotter

Credential OD

Sex Female

Practice address 4850 S 74th St, Greenfield, WI, 53220

Phone (414) 282-3200

Enumeration date Jul 13, 2018

Last updated in NPPES Jul 7, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPC5570 (FL) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Joanna Cotter?

The National Provider Identifier (NPI) for Joanna Cotter is 1922584846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joanna Cotter practice?

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

Other providers at this practice address

Browse all →

Scott Schumacher Optometrist · Greenfield, WI NPI 1457339343 Richard Zimmerman Optometrist · Greenfield, WI NPI 1811969736 Luxottica of America Inc. Eyewear Supplier · Greenfield, WI NPI 1871668921 Alexandra Buffington Optometrist · Milwaukee, WI NPI 1295527323

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-07.