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

Michael Sisk, MD

Individual provider Orthopaedic Surgery Physician · NPI 1700802535

Michael Sisk, MD practises Orthopedic Surgery in Lander, Wyoming. Graduated from University of Colorado School of Medicine, Denver in 2005, 21 years ago. Practices with Cheyenne County Hospital Association Inc, a 49-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
21
Trained at
University of Colorado School of Medicine, Denver
Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

8185 Highway 789
Lander, WY 82520-2942
Phone: (307) 206-9300
Fax: (307) 222-7977
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

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 37745 (CO)

Record details

NPI number1700802535
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2006
Last updated in NPPESMarch 31, 2026
Certification dateMarch 31, 2026

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2005 (21 years in practice)
Group practice Cheyenne County Hospital Association Inc — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 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.

Hip replacement 1–10 times
Knee replacement 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 patients54
Services billed 335 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 Cheyenne County Hospital Association Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 49 clinicians in the practice; 12 are shown here.

Other providers in Lander