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General Surgery

Elizabeth J. Helmer, MD

Works at hospitals in Marshfield, WI · Wisconsin

Summary

Dr. Elizabeth J. Helmer, MD is a general surgeon at 1000 N Oak Ave, Marshfield, WI 54449. Phone: (715) 387-5511. Accepts Medicare assignment. In 2024, Elizabeth J. Helmer had 103 Original Medicare patients and 1,570 services. NPI 1366606980. 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.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 1000 N Oak Ave, Marshfield, WI 54449 · Directions
  • Phone: (715) 387‑5511
  • Medicare: Accepts Medicare assignment
  • Hospital: Marshfield Medical Center
  • Group practice: MCHS Hospitals Inc
  • Medical school: Wayne State University School Of Medicine · graduated 2008 (18 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Elizabeth J. Helmer, 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 Elizabeth J. Helmer accept Medicare assignment?
Yes. Medicare's clinician data says Elizabeth J. Helmer 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 Elizabeth J. Helmer see?
In 2024, CMS data shows 103 Original Medicare patients and 1,570 services for Elizabeth J. Helmer. This counts Original Medicare only and measures volume, not quality.
What is Elizabeth J. Helmer's NPI number?
1366606980. 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 Elizabeth J. Helmer, 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 patients103
Services billed to Medicare1,570
Different services or procedures59
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Management of oxygen chamber therapy (99183)256 services
  2. Removal of tissue from wound, 20.0 sq cm or less (97597)225 services
  3. Application of skin substitute graft to wound of face, scalp, eyelids, mouth, neck, ears, around eyes, genitals, hands, feet, fingers, or toes, 25.0 sq cm or less of wound 100.0 sq cm or less (15275)215 services
  4. Removal of skin and tissue, 20.0 sq cm or less (11042)150 services
  5. Removal of skin and tissue, each additional 20.0 sq cm or less (11045)118 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).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes59%
  • Chronic kidney disease57%
  • Ischemic heart disease48%
  • Heart failure46%

Hospitals where Elizabeth J. Helmer works

Medicare's Facility Affiliation Data lists Elizabeth J. Helmer 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 Elizabeth J. Helmer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elizabeth J. Helmer as a member of this group (CMS data updated October 2, 2026).

  • MCHS Hospitals Inc1,197 clinicians in the group

Specialties

Find other General Surgery doctors in Wisconsin →

Other general surgeons in Marshfield

Clinicians with the same Medicare primary specialty in Marshfield, WI — not a recommendation.

All general surgeons in Marshfield →

Other clinicians in MCHS Hospitals Inc

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

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1366606980
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