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

John Kohorst

Individual provider Dermatology Physician · NPI 1588044366

John Kohorst is registered under Micrographic Dermatologic Surgery (Mds) in Onalaska, Wisconsin. Qualified in 2015, 11 years ago. Practices with Mayo Clinic Health System-Southwest Wisconsin Region Inc, a 552-clinician group and accepts Medicare assignment. Licensed in Minnesota and Wisconsin.

Years since qualifying
11
Licensed in
MN, WI
In the registry since
2015
Specialties on file
3
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Practice location Address checks out

191 Theater Rd
Onalaska, WI 54650-8679
Phone: (608) 785-0940
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

MOHS-Micrographic Surgery Physician (primary) Taxonomy 207ND0101X · Licence 73195 (WI)
Dermatology Physician Taxonomy 207N00000X · Licence 73195 (WI)
Dermatology Physician Taxonomy 207N00000X · Licence 60799 (MN)

Record details

NPI number1588044366
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 5, 2015
Last updated in NPPESOctober 5, 2020
Certification dateOctober 5, 2020

Medicare enrollment

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

Medicare specialtyMICROGRAPHIC DERMATOLOGIC SURGERY (MDS)
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mayo Clinic Health System-Southwest Wisconsin Region Inc — 552 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.

Melanoma (skin cancer) excision 94 times · 92nd percentile
Removal of skin cancer 798 times · 79th percentile
Removal of skin lesions 65 times · 73rd percentile
Skin biopsy 75 times · 73rd percentile
Removal of nail 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 patients583
Services billed 1,885 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 Mayo Clinic Health System-Southwest Wisconsin Region Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 552 clinicians in the practice; 12 are shown here.

Other providers in Onalaska