Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
WILLIS JOHN RIEKER JR., M.D.
Active Sole ProprietorWILLIS JOHN RIEKER JR., M.D. is a Cytopathology healthcare provider located in BELOIT, Wisconsin. NPI 1689714834 is currently active in the NPPES registry. Verify at CMS.
Cytopathology · BELOIT, WI
Registration Details
- NPI Number
- 1689714834
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Feb 7, 2007 (19.538370917333 yrs)
- Last Updated
- Sep 11, 2025
- Licenses
-
35629-020 (WI)35629-020 (WI)
- Sole Proprietor
- Yes
Practice Information
- Address
-
1969 W HART RDBELOIT, WI, 535112230Browse WI providers · Browse ZIP 53511
- Phone
- 6083645131
- Fax
- 6083643185
- Primary Specialty
-
Cytopathology
207ZC0500X
- Additional Specialty
- Anatomic Pathology & Clinical Pathology
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.