Individual provider · Type 1 NPI

Willis John Rieker Jr., MD

Cytopathology Physician · Beloit, WI

NPI number 1689714834 Active

Practice location

1969 W Hart Rd
Beloit, WI 53511-2230

Call (608) 364-5131 Map

Fax (608) 364-3185

Specialties and licenses

TaxonomyCodeLicense
Cytopathology Physician Primary 207ZC0500X35629-020 (WI)
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X35629-020 (WI)

Cytopathology Physician: A cytopathologist is an anatomic pathologist trained in the diagnosis of human disease by means of the study of cells obtained from body secretions and fluids, by scraping, washing, or sponging the surface of a lesion, or by the aspiration of a tumor mass or body organ with a fine needle. A major aspect of a cytopathologist's practice is the interpretation of Papanicolaou-stained smears of cells from the female repr…

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About NPI 1689714834

Willis John Rieker Jr., MD's National Provider Identifier is 1689714834, issued on Feb 7, 2007. The primary taxonomy on file is Cytopathology Physician (207ZC0500X), and the practice location is in Beloit, WI. The record was last updated on Sep 11, 2025.