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Certified Nurse Midwife (CNM)

Kathy L. Errthum, CNM

Works at hospitals in La Crosse, WI · Wisconsin

Summary

Kathy L. Errthum, CNM (Certified Nurse Midwife (CNM)) is listed by Medicare at 1 hospital in La Crosse, WI. NPI 1326243445. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Kathy L. Errthum, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Certified Nurse Midwife (CNM)Primary specialty
YesAccepts Medicare assignment
19Years since medical school (graduated 2007)
FemaleGender (as listed)
Mayo Clinic Health System-Southwest Wisconsin Region IncGroup practice

Quick answers

Which hospitals does Kathy L. Errthum work at?
Medicare's official clinician data lists Kathy L. Errthum at 1 hospital: Mayo Clinic Health System-Franciscan Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kathy L. Errthum see patients?
Medicare's clinician data lists 1 practice location in La Crosse, WI. Call before your visit to confirm the address.
What is Kathy L. Errthum's specialty?
Medicare lists Certified Nurse Midwife (CNM) as the primary specialty.
Does Kathy L. Errthum accept Medicare assignment?
Yes. Medicare's clinician data says Kathy L. Errthum accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Kathy L. Errthum?
(608) 785-0940, as listed in official Medicare / NPI Registry data.
What is Kathy L. Errthum's NPI number?
1326243445. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kathy L. Errthum works

Medicare's Facility Affiliation Data lists Kathy L. Errthum at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Kathy L. Errthum is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Kathy L. Errthum as a member of this group (CMS data updated 2026-10-02).

  • Mayo Clinic Health System-Southwest Wisconsin Region Inc534 clinicians in the group

Specialties

Find other clinicians: Certified Nurse Midwife (CNM), Wisconsin →

Other nurse midwifes in La Crosse

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

All nurse midwifes in La Crosse →

Clinician information

CredentialCNM
Graduation year2007
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326243445
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians