Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark John Dehnel

Individual provider Physician Assistant · NPI 1578548947

Mark John Dehnel is a Physician Assistant in Denmark, Wisconsin. Qualified in 1997, 29 years ago. Practices with Bellin Memorial Hospital Inc, a 681-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
29
Licensed in
WI
In the registry since
2005
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Practice location Address checks out

595 County Road R
Denmark, WI 54208-9529
Phone: (920) 863-2005
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Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 991 (WI)

Record details

NPI number1578548947
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 8, 2005
Last updated in NPPESMay 13, 2021
Certification dateMay 13, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Bellin Memorial Hospital Inc — 681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients125
Services billed 401 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Bellin Memorial Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 681 clinicians in the practice; 12 are shown here.