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Emergency Medicine

Sean M. Wetjen, MD

Works at hospitals in Dubuque, IA · Iowa

Summary

Dr. Sean M. Wetjen, MD is an emergency medicine doctor at 3421 W 9th St, Waterloo, IA 50702. Phone: (319) 272-8000. Accepts Medicare assignment. In 2024, Sean M. Wetjen had 273 Original Medicare patients and 382 services. NPI 1285298257. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 3421 W 9th St, Waterloo, IA 50702 · Directions
  • Phone: (319) 272‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: MercyOne Dubuque Medical Center
  • Group practice: Waterloo Emergency Physicians, LLC
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Sean M. Wetjen, 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 Sean M. Wetjen accept Medicare assignment?
Yes. Medicare's clinician data says Sean M. Wetjen 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 Sean M. Wetjen see?
In 2024, CMS data shows 273 Original Medicare patients and 382 services for Sean M. Wetjen. This counts Original Medicare only and measures volume, not quality.
What is Sean M. Wetjen's NPI number?
1285298257. 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 Sean M. Wetjen, 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 patients273
Services billed to Medicare382
Different services or procedures20
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)207 services
  2. Emergency department visit with moderate level of medical decision making (99284)78 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)62 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 cholesterol75%
  • High blood pressure73%
  • Anxiety44%
  • Arthritis40%
  • Depression40%
  • Diabetes32%

Hospitals where Sean M. Wetjen works

Medicare's Facility Affiliation Data lists Sean M. Wetjen 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 Sean M. Wetjen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sean M. Wetjen as a member of this group (CMS data updated October 2, 2026).

  • Waterloo Emergency Physicians, LLC20 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Iowa →

Other emergency medicine doctors in Waterloo

Clinicians with the same Medicare primary specialty in Waterloo, IA — not a recommendation.

All emergency medicine doctors in Waterloo →

Other clinicians in Waterloo Emergency Physicians, LLC

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

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285298257
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