Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Orthopedic Surgery

Evan N. Hermanson, MD

Works at hospitals in Marshall, MN · Sioux Falls, SD · Pierre, SD … · Minnesota, South Dakota

Summary

Dr. Evan N. Hermanson, MD is an orthopedic surgeon at 1101 Broadway Ave, Yankton, SD 57078. Phone: (605) 331-5890. Accepts Medicare assignment. In 2024, Evan N. Hermanson had 331 Original Medicare patients and 1,505 services. NPI 1316039589. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Evan N. Hermanson, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Evan N. Hermanson accept Medicare assignment?
Yes. Medicare's clinician data says Evan N. Hermanson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Evan N. Hermanson see?
In 2024, CMS data shows 331 Original Medicare patients and 1,505 services for Evan N. Hermanson. This counts Original Medicare only and measures volume, not quality.
What is Evan N. Hermanson's NPI number?
1316039589. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Evan N. Hermanson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients331
Services billed to Medicare1,505
Different services or procedures61
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)672 services
  2. X-ray of shoulder, minimum of 2 views (73030)122 services
  3. X-ray of knee, 4 or more views (73564)78 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)78 services
  5. Aspiration and/or injection of fluid from large joint (20610)72 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • Arthritis75%
  • High blood pressure71%
  • High cholesterol71%
  • Ischemic heart disease25%
  • Anxiety22%
  • Diabetes21%

Hospitals where Evan N. Hermanson works

Medicare's Facility Affiliation Data lists Evan N. Hermanson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Evan N. Hermanson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Evan N. Hermanson as a member of this group (CMS data updated October 2, 2026).

  • Orthopedic Institute PC57 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in South Dakota →

Other orthopedic surgeons in Yankton

Clinicians with the same Medicare primary specialty in Yankton, SD — not a recommendation.

All orthopedic surgeons in Yankton →

Other clinicians in Orthopedic Institute PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Nebraska College Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316039589
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians