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Family Practice

Erin L. Polczynski, MD

Works at hospitals in Hartford, WI · Wisconsin

Summary

Dr. Erin L. Polczynski, MD is a family doctor at 1640 E Sumner St, Hartford, WI 53027. Phone: (262) 670-4000. Accepts Medicare assignment. In 2024, Erin L. Polczynski had 214 Original Medicare patients and 915 services. NPI 1275776155. 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: Family doctor (Medicare lists Family Practice)
  • Address: 1640 E Sumner St, Hartford, WI 53027 · Directions
  • Phone: (262) 670‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Aurora Medical Center Washington County
  • Group practice: Aurora Advanced Healthcare, Inc.
  • Medical school: University Of Wisconsin School Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Erin L. Polczynski, 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 Erin L. Polczynski accept Medicare assignment?
Yes. Medicare's clinician data says Erin L. Polczynski 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 Erin L. Polczynski see?
In 2024, CMS data shows 214 Original Medicare patients and 915 services for Erin L. Polczynski. This counts Original Medicare only and measures volume, not quality.
What is Erin L. Polczynski's NPI number?
1275776155. 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 Erin L. Polczynski, 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 patients214
Services billed to Medicare915
Different services or procedures38
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)161 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)156 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)140 services
  4. Anticoagulant management of patient taking warfarin (93793)77 services
  5. Influenza vaccine split virus, preservative free (90662)58 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 pressure71%
  • High cholesterol70%
  • Arthritis41%
  • Ischemic heart disease31%
  • Chronic kidney disease28%
  • Atrial fibrillation28%

Hospitals where Erin L. Polczynski works

Medicare's Facility Affiliation Data lists Erin L. Polczynski 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 Erin L. Polczynski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Erin L. Polczynski as a member of this group (CMS data updated October 2, 2026).

  • Aurora Advanced Healthcare, Inc.1,124 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in Hartford

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

All family doctors in Hartford →

Other clinicians in Aurora Advanced Healthcare, Inc.

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

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275776155
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