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

Individual provider Family Medicine Physician · NPI 1942228531

William G Muller, MD is registered under Family Practice in Bemidji, Minnesota. Graduated from University of Minnesota Medical School in 1992, 34 years ago. Practices with Sanford Health of Northern Minnesota, a 349-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
34
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2006
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

1233 34th St NW
Bemidji, MN 56601-5112
Phone: (218) 333-5180
Fax: (218) 333-5360
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 36372 (MN)

Record details

NPI number1942228531
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2006
Last updated in NPPESMarch 29, 2022
Certification dateMarch 29, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1992 (34 years in practice)
Group practice Sanford Health Of Northern Minnesota — 349 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients544
Services billed 1,120 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

  • Sanford Bemidji Medical Center Hospital · Bemidji, MN · listed as Sanford Medical Center Fargo
  • St Croix Hospice Hospice · Grand Rapids, MN · listed as St Croix Hospice LLC
  • Sanford Bemidji Home Care And Hospice Home health agency · Bemidji, MN
  • Sanford Bemidji Hospice Hospice · Bemidji, MN

Colleagues at Sanford Health of Northern Minnesota

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 349 clinicians in the practice; 12 are shown here.

Other providers in Bemidji