Internal Medicine in Fond Du Lac, WI

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

Internal Medicine providers in Fond Du Lac, WI
NPI Name Type Specialty Location
1114035755 Adam Karewicz Individual Internal Medicine Physician Fond Du Lac, WI
1023041019 Balvindar Sareen Individual Internal Medicine Physician Fond Du Lac, WI
1356332753 Brenda Grass Individual Adolescent Medicine (Internal Medicine) Physician Fond Du Lac, WI
1447242490 Bret Pasiuk Individual Nephrology Physician Fond Du Lac, WI
1093798290 Dana Vasquez Individual Internal Medicine Physician Fond Du Lac, WI
1962492397 David Bowman Individual Cardiovascular Disease Physician Fond Du Lac, WI
1548214463 David Haller Individual Gastroenterology Physician Fond Du Lac, WI
1821089541 E Ayala Individual Internal Medicine Physician Fond Du Lac, WI
1376524678 Eugene Lambert Individual Hematology & Oncology Physician Fond Du Lac, WI
1184731630 Gabriel Litman Individual Internal Medicine Physician Fond Du Lac, WI
1053305961 Jay Muller Individual Internal Medicine Physician Fond Du Lac, WI
1831171966 Jeanna Owens Individual Rheumatology Physician Fond Du Lac, WI
1376534941 Jerry Evans Individual Gastroenterology Physician Fond Du Lac, WI
1710969860 Joseph Marik Individual Internal Medicine Physician Fond Du Lac, WI
1780793737 Juan Diaz Individual Interventional Cardiology Physician Fond Du Lac, WI
1396765699 Kristof Gehrke Individual Critical Care Medicine (Internal Medicine) Physician Fond Du Lac, WI
1346222023 Lewis Sierra Individual Internal Medicine Physician Fond Du Lac, WI
1821009838 Madhulika Lall Individual Internal Medicine Physician Fond Du Lac, WI
1417976200 Michael Freeland Individual Critical Care Medicine (Internal Medicine) Physician Fond Du Lac, WI
1164403226 Michael Jones Individual Hematology & Oncology Physician Fond Du Lac, WI
1811004005 Michael Sergi Individual Internal Medicine Physician Fond Du Lac, WI
1174571806 Nathan Slinde Individual Gastroenterology Physician Fond Du Lac, WI
1184615429 Oliver Clements Individual Internal Medicine Physician Fond Du Lac, WI
1255311825 Paula Svasta Individual Internal Medicine Physician Fond Du Lac, WI
1144271990 Punit Kumar Individual Internal Medicine Physician Fond Du Lac, WI
1669467072 Radhika Raj Individual Internal Medicine Physician Fond Du Lac, WI
1174631063 Radu Pirvanescu Individual Internal Medicine Physician Fond Du Lac, WI
1134205495 Richard Rosenberg Individual Gastroenterology Physician Fond Du Lac, WI
1689665093 Robert Grass Individual Internal Medicine Physician Fond Du Lac, WI
1407837537 Yasir Hatahet Individual Pulmonary Disease Physician Fond Du Lac, WI

Frequently asked questions

How many Internal Medicine providers are in Fond Du Lac, WI?
The latest NPPES snapshot lists 41 active Internal Medicine providers with a practice address in Fond Du Lac, Wisconsin.
How do I check a Internal Medicine provider's NPI in Fond Du Lac?
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 2026-07-09.