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

Dr. Mark R Druffner, MD

Individual provider Family Medicine Physician · NPI 1154392447

Dr. Mark R Druffner, MD is registered under Family Practice in Amery, Wisconsin. Graduated from Jefferson Medical College of Thomas Jefferson University in 1991, 35 years ago. Practices with Baldwin Area Medical Center Inc, a 86-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Minnesota and Wisconsin.

Years since qualifying
35
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
MN, WI
In the registry since
2006
Specialties on file
2
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

265 Griffin St E
Amery, WI 54001-1439
Phone: (715) 268-8000
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Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (3)

  • 927 Churchill St W, Stillwater, MN 55082-6605 — (651) 439-5330
  • 403 Stageline Rd, Hudson, WI 54016 — (715) 531-6800
  • 535 Hospital Rd, New Richmond, WI 54017-1449 — (715) 243-2600

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 39223 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence 36268 (MN)

Record details

NPI number1154392447
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 27, 2006
Last updated in NPPESMay 10, 2019

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1991 (35 years in practice)
Group practice Baldwin Area Medical Center Inc — 86 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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.

Colonoscopy 44 times · 61st percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 12 times · 44th percentile
Removal of skin lesions 1–10 times
Removal of tissue 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 patients276
Services billed 1,833 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

  • Hudson Hospital Hospital · Hudson, WI
  • Lakeview Memorial Hospital Hospital · Stillwater, MN · listed as Lakeview Memorial Hospital Assn, Inc
  • Christian Community Home Nursing home · Hudson, WI · listed as Christian Community Home of Hudson, Inc
  • Western Wisconsin Health Hospital · Baldwin, WI
  • Adoray Home Health And Hospice Home health agency · Baldwin, WI
  • Lakeview Hospice Hospice · Oak Park Heights, MN

Colleagues at Baldwin Area Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 86 clinicians in the practice; 12 are shown here.

Other providers in Amery