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

Dennis K Showalter

Individual provider Family Medicine Physician · NPI 1477530996

Dennis K Showalter is registered under Family Practice in Wayzata, Minnesota. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1996, 30 years ago. Practices with Park Nicollet Clinic, a 1,773-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
30
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
MN
In the registry since
2005
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Practice location Address checks out

250 Central Ave N Ste 228 Park Nicollet Clinic - Wayzat
Wayzata, MN 55391 Not confirmed with CMS for 14 years — call before visiting
Phone: (952) 993-8250
Fax: (952) 993-8276
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 39874 (MN)

Record details

NPI number1477530996
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 27, 2005
Last updated in NPPESJune 26, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Park Nicollet Clinic — 1773 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients226
Services billed 232 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Colleagues at Park Nicollet Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1773 clinicians in the practice; 12 are shown here.

Other providers in Wayzata