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

Michael C Stark, DO

Individual provider Family Medicine Physician · NPI 1649260779

Michael C Stark, DO is registered under Family Practice in Tomah, Wisconsin. Qualified in 1979, 47 years ago. Practices with Mayo Clinic Health System-Southwest Wisconsin Region Inc, a 552-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
47
Licensed in
WI
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

325 Butts Ave
Tomah, WI 54660-1412
Phone: (608) 372-5951
Fax: (608) 372-3436
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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 22938 (WI)

Record details

NPI number1649260779
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 28, 2005
Last updated in NPPESSeptember 16, 2020
Certification dateSeptember 16, 2020

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Mayo Clinic Health System-Southwest Wisconsin Region Inc — 552 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients412
Services billed 2,413 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.

  • Mayo Clinic Health System-Franciscan Medical Center Inc Hospital · La Crosse, WI · listed as Mayo Clinic Health System-Southwest Wisconsin Region, Inc
  • Tomah Memorial Hospital Hospital · Tomah, WI · listed as Tomah Memorial Hospital Inc
  • Mayo Clinic Health System Eau Claire Hospital Hospital · Eau Claire, WI
  • Mayo Clinic Hlth Systm Franciscan Hlthcare Sparta Hospital · Sparta, WI
  • Hospice Touch Hospice · Tomah, WI
  • St Croix Hospice Eau Claire Hospice · Eau Claire, WI

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 Tomah