Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Michael J Larson, MD

Individual provider Orthopaedic Surgery Physician · NPI 1518960087

Dr. Michael J Larson, MD practises Orthopedic Surgery in Rexburg, Idaho. Graduated from Loma Linda University School of Medicine in 1980, 46 years ago. Practices with Madison Co Memorial Hospital, a 34-clinician group and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
46
Trained at
Loma Linda University School of Medicine
Licensed in
ID
In the registry since
2005
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

360 E Main
Rexburg, ID 83440 Not confirmed with CMS for 16 years — call before visiting
Phone: (208) 356-9550
Fax: (208) 356-8023
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence M5158 (ID)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence M-5158 (ID)

Record details

NPI number1518960087
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2005
Last updated in NPPESDecember 14, 2009

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Madison Co Memorial Hospital — 34 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times
Upper limb (arm) arthroscopy (minimally invasive joint repair) 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 patients69
Services billed 573 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Madison Co Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 34 clinicians in the practice; 12 are shown here.

Other providers in Rexburg