WILLIAM L NELSON (MD) – Internal Medicine Physician, NPI 1154316396

WILLIAM L NELSON (MD) is a healthcare provider. based in Neenah, Wisconsin. specializing in Internal Medicine Physician. They hold the professional credentials MD. They hold a License No. 20629 (WI). The NPI Number for WILLIAM L NELSON (MD) is 1154316396

Main info

Male
Name
WILLIAM L NELSON (MD)
NPI
1154316396
Phone
(920) 727-4220
Address
101 MAIN ST
Enumeration Date
14 September 2005
Last Update Date
6 November 2012
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for WILLIAM L NELSON (MD)

  • 101, Main Street, Neenah, Winnebago County, Wisconsin, 54956, United States

    NEENAH, WI 549562570

    Phone: (920) 727-4220

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 54956)

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Reviews

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Frequently asked questions

What is WILLIAM L NELSON (MD)'s NPI number?
WILLIAM L NELSON (MD)'s NPI is 1154316396 — the number used across U.S. healthcare to identify this provider.
Is WILLIAM L NELSON (MD) still an active registrant?
WILLIAM L NELSON (MD) carries an active NPI according to the public dataset.
What expertise is attributed to WILLIAM L NELSON (MD)?
WILLIAM L NELSON (MD)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Is WILLIAM L NELSON (MD) located near Neenah?
WILLIAM L NELSON (MD) currently maps to Neenah, Wisconsin in this extract.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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