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Dr. Robert T Willis, MD

Pulmonary Disease Physician in Sheboygan, WI · enumerated 2006.

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

National Provider Identifier

1609983576

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert T Willis
Credential MD
Sex Male
Practice address 2414 Kohler Memorial Dr, Sheboygan, WI, 53081
Phone (920) 457-4461
Fax (920) 459-1405
Enumeration date Aug 24, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 17841 (WI) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 17841 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
31199700 Medicaid WI -

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.

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Frequently asked questions

What is the NPI number for Robert Willis?
The National Provider Identifier (NPI) for Robert Willis is 1609983576, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Willis practice?
The practice location on file with NPPES is in Sheboygan, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.