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

Obstetrics/Gynecology

Elina X. Pfaffenbach, MD

Works at hospitals in Appleton, WI · Wisconsin

Summary

Dr. Elina X. Pfaffenbach, MD is an OB-GYN at 1818 N Meade St, Appleton, WI 54911. Phone: (920) 749-4000. Accepts Medicare assignment. In 2024, Elina X. Pfaffenbach had 36 Original Medicare patients and 100 services. NPI 1780650572. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1818 N Meade St, Appleton, WI 54911 · Directions
  • Phone: (920) 749‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Thedacare Regional Medical Center - Appleton Inc
  • Group practice: Womens Health Specialists SC
  • Medical school: Northwestern University Feinberg Medical School · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elina X. Pfaffenbach, 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 Elina X. Pfaffenbach accept Medicare assignment?
Yes. Medicare's clinician data says Elina X. Pfaffenbach 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 Elina X. Pfaffenbach see?
In 2024, CMS data shows 36 Original Medicare patients and 100 services for Elina X. Pfaffenbach. This counts Original Medicare only and measures volume, not quality.
What is Elina X. Pfaffenbach's NPI number?
1780650572. 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 Elina X. Pfaffenbach, 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 patients36
Services billed to Medicare100
Different services or procedures21
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)33 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 cholesterol58%
  • High blood pressure53%
  • Arthritis39%

Hospitals where Elina X. Pfaffenbach works

Medicare's Facility Affiliation Data lists Elina X. Pfaffenbach 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 Elina X. Pfaffenbach is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elina X. Pfaffenbach as a member of this group (CMS data updated October 2, 2026).

  • Womens Health Specialists SC27 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Wisconsin →

Other OB-GYNs in Appleton

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

All OB-GYNs in Appleton →

Other clinicians in Womens Health Specialists SC

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

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780650572
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