Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dirk M Nuenninghoff, MD

Individual provider Rheumatology Physician · NPI 1538109053

Dirk M Nuenninghoff, MD is a Rheumatology in Portage, Wisconsin. Graduated from University of Nebraska College of Medicine in 1998, 28 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
28
Trained at
University of Nebraska College of Medicine
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2977 County Hwy Cx
Portage, WI 53901
Phone: (608) 745-3399
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1821 S Stoughton Rd, Madison, WI 53716-2257 — (608) 260-6000

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 45438-020 (WI)

Record details

NPI number1538109053
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESAugust 4, 2025
Certification dateJuly 28, 2025
Mailing address7974 Uw Health Ct, Middleton, WI 53562-5531

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRHEUMATOLOGY
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Dean Health Systems Inc — 1184 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare