Browse Health
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Denis Tonsfeldt:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Have you visited Dr. Tonsfeldt? Share your experience.
Write a Review

Specialties & Research

Dr. Denis Tonsfeldt, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Tonsfeldt graduated from University of Iowa, Iowa City.


Dr. Tonsfeldt has 9 hospital affiliations:

  • Waukesha Memorial Hospital 
  • Aurora Sinai Medical Center 

Similar doctors nearby

Dr. Charles Leadholm

Emergency Medicine
37 years experience
Burlington, WI

Dr. Richard Wagner

Emergency Medicine
37 years experience
Burlington, WI

Dr. John Linstroth

Emergency Medicine
37 years experience
Burlington, WI

Dr. James Pavlich

Emergency Medicine
Burlington, WI

Dr. Erin Grinhaug

Emergency Medicine
Burlington, WI

Dr. Mark Philips

Emergency Medicine
6 years experience
Burlington, WI
Search All Similar Doctors
Additional Information
Dr. Denis John Tonsfeldt MD is a male Emergency Medicine Specialist, has 37 years of experience and practices in Emergency Medicine.
Where does Dr. Denis J. Tonsfeldt practice?
Dr. Denis Tonsfeldt has 1 office location.
Dr. Denis Tonsfeldt practices Emergency Medicine near Waterford, WI.
See Waterford Emergency Physicians.