NPPES file of Aug 9, 2026

Kathy L. Errthum, CNM

Advanced Practice Midwife · La Crosse, WI

Kathy L. Errthum, CNM is an advanced practice midwife with a practice address in La Crosse, Wisconsin, and NPI 1326243445, issued on Jun 19, 2007. Check the license (Wisconsin 3387-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326243445
Name
Kathy L. Errthum
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License numbers
3387-33 WI
R1782408 MN
Self-reported in NPPES; status is on the state search
Practice location
800 West Ave S, La Crosse, WI 54601
Phone
(608) 782-9760
Enumerated
Jun 19, 2007
Record last updated
Aug 10, 2022
Medicare enrollment
Enrolled (PECOS I20080501000180); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest advanced practice midwife records → All 281 in Wisconsin → Look up another NPI →

Also registered at 800 West Ave S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mais AbdouPulmonary Disease Physician1326572066
  2. Christine Alioto, PTPhysical Therapist1942284641
  3. Sadaf Altaf, MBBSPediatrics Physician1457492076
  4. Stephanie Andersen, OTROccupational Therapist1386773125
  5. Daniel Anderson, D.O.Neurology Physician1770996340
  6. Nitika Arora, M.D.Ophthalmology Physician1629419031

Verify Kathy L. Errthum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 3387-33    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathy L. Errthum among 281 advanced practice midwife records in Wisconsin

Kathy L. Errthum, CNM is one of 281 advanced practice midwife records with a practice address in Wisconsin. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 30% of them.

  • NPI issued2007 · 30% of these records are older, 64% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2007 · median 2016 among the 117 with a school on file
  • Record last updated2022 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Advanced Practice Midwife providers in Wisconsin

There are 281 advanced practice midwife records in Wisconsin.

All 281 in Wisconsin → Every provider in La Crosse → Advanced Practice Midwife nationwide →

The 8 advanced practice midwife records with the nearest ZIP codes

  1. Joyce Belgum, CNMLa Crosse, WI 546011255335105
  2. Amy Belling, CNMLa Crosse, WI 546011376968156
  3. Christine Fishel, ARNP-CNMLa Crosse, WI 546011730435710
  4. Jessica Hamilton, CNMLa Crosse, WI 546011427242296
  5. Agnes Hoeger, CNMLa Crosse, WI 546011144225665
  6. Rebecca Kearns, CNMLa Crosse, WI 546011255313482
  7. Paula Murphy, CNMLa Crosse, WI 546011497759831
  8. Alacia Pierce, CNMLa Crosse, WI 546011962957712

Common questions

What is Kathy L. Errthum, CNM's NPI number?

Kathy L. Errthum, CNM's National Provider Identifier (NPI) is 1326243445, issued on Jun 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathy L. Errthum, CNM located?

The NPPES record lists a practice address at 800 West Ave S, La Crosse, WI, 54601. Phone: (608) 782-9760. Providers update this record themselves, so call before visiting.

How can I verify Kathy L. Errthum, CNM's license?

NPPES lists Wisconsin license number 3387-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.