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

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1215082169

Steven Michael Vanderwerf, MD practises Pathology in Willmar, Minnesota. Graduated from University of Minnesota Medical School in 2005, 21 years ago. Practices with Alomere Health, a 122-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
21
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

301 Becker Ave SW
Willmar, MN 56201-3302 Not confirmed with CMS for 13 years — call before visiting
Phone: (320) 231-4500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 18369 (MN)

Record details

NPI number1215082169
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 23, 2007
Last updated in NPPESOctober 30, 2013

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 2005 (21 years in practice)
Group practice Alomere Health — 122 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 patients682
Services billed 1,809 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Alomere Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 122 clinicians in the practice; 12 are shown here.

Other providers in Willmar