NPI Portal NPI Lookup & Verification

Internal Medicine in Delafield, WI

9 active Internal Medicine providers practice in Delafield, Wisconsin according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Delafield, WI
NPI Name Type Specialty Location
1770589236 David Cullinane Individual Cardiovascular Disease Physician Delafield, WI
1467443994 Delafield Medical Center LLC Organization Internal Medicine Physician Delafield, WI
1669710869 Hayes Hatfield Individual Internal Medicine Physician Delafield, WI
1831180371 Lake Country Cardiovascular Associates Ltd Organization Cardiovascular Disease Physician Delafield, WI
1356458632 Mark Schaten Individual Internal Medicine Physician Delafield, WI
1962543751 Prohealth Medical Group Inc Organization Internal Medicine Physician Delafield, WI
1265785372 Rania Dempsey Individual Sports Medicine (Internal Medicine) Physician Delafield, WI
1932172327 Roger Watson Individual Internal Medicine Physician Delafield, WI
1538328463 Susan Russler Individual Internal Medicine Physician Delafield, WI

Frequently asked questions

How many Internal Medicine providers are in Delafield, WI?
The latest NPPES snapshot lists 9 active Internal Medicine providers with a practice address in Delafield, Wisconsin.
How do I check a Internal Medicine provider's NPI in Delafield?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-11.