Individual provider · Type 1 NPI

Ronald Demark, OD

Optometrist · Manitowoc, WI

NPI number 1346294741 Active

Practice location

3415 Calumet Ave
Manitowoc, WI 54220-5427

Call (920) 683-2244 Map

Fax (920) 684-7706

Specialties and licenses

TaxonomyCodeLicense
Optometrist Primary 152W00000X1403 (WI)

Optometrist: Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional e…

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About NPI 1346294741

Ronald Demark, OD's National Provider Identifier is 1346294741, issued on May 20, 2006. The primary taxonomy on file is Optometrist (152W00000X), and the practice location is in Manitowoc, WI. The record was last updated on Jul 13, 2026.