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General Surgery

Erich S. Schafer, DO

Works at hospitals in Fremont, MI · Michigan

Summary

Dr. Erich S. Schafer, DO is a general surgeon at 100 Michigan Ave NE, Grand Rapids, MI 49503. Accepts Medicare assignment. In 2024, Erich S. Schafer had 51 Original Medicare patients and 79 services. NPI 1427499029. 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: 100 Michigan Ave NE, Grand Rapids, MI 49503 · Directions (3 more locations)
  • Medicare: Accepts Medicare assignment
  • Hospital: Corewell Health Gerber Hospital
  • Group practice: Newaygo County General Hospital Association
  • Medical school: graduated 2013 (13 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Erich S. Schafer, 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 Erich S. Schafer accept Medicare assignment?
Yes. Medicare's clinician data says Erich S. Schafer 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 Erich S. Schafer see?
In 2024, CMS data shows 51 Original Medicare patients and 79 services for Erich S. Schafer. This counts Original Medicare only and measures volume, not quality.
What is Erich S. Schafer's NPI number?
1427499029. 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 Erich S. Schafer, 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 patients51
Services billed to Medicare79
Different services or procedures34
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Biopsy of large bowel using a flexible endoscope (45380)14 services
  2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)11 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 pressure67%
  • High cholesterol59%
  • Arthritis47%
  • Anxiety29%
  • Diabetes25%
  • Depression25%

Hospitals where Erich S. Schafer works

Medicare's Facility Affiliation Data lists Erich S. Schafer 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.

  • Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231338

Practice locations

Addresses where Erich S. Schafer is enrolled with Medicare (CMS data updated October 2, 2026).

  • 100 Michigan Ave NEGrand Rapids, MI 49503
  • 100 Michigan NE Mc, Suite 60Grand Rapids, MI 49503
  • 212 S Sullivan AveFremont, MI 49412
  • 230 W Oak St, Corewell Health Gerber HospitalFremont, MI 49412

Group practices

Medicare enrollment lists Erich S. Schafer as a member of this group (CMS data updated October 2, 2026).

  • Newaygo County General Hospital Association59 clinicians in the group

Specialties

Find other General Surgery doctors in Michigan →

Other general surgeons in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

All general surgeons in Grand Rapids →

Other clinicians in Newaygo County General Hospital Association

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

Clinician information

CredentialDO
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427499029
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