1. Home
  2. Directory
  3. Wisconsin
  4. La Crosse
  5. Counselor
  6. NPI Profile

ANN BRENNAN WEIDENHEIM LCSW,LPC
NPI 1225306400
Counselor - Professional in La Crosse, WI

Active since December 02, 2011PECOS Enrolled
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: June 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ann Brennan Weidenheim Lcsw,lpc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANN BRENNAN WEIDENHEIM LCSW,LPC (NPI 1225306400) is an individual professional provider in La Crosse, Wisconsin, licensed in Wisconsin (609-125) and active in the NPI registry since December 2011. She is enrolled in Medicare PECOS and maintains a secondary practice location in Eau Claire.

NPPES Registry Identity

NPI1225306400
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameANN BRENNAN WEIDENHEIMCredential: LCSW,LPC
Location Address1836 SOUTH AVELa Crosse, WI 54601-5429
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Phone(608) 782-7300
Sole ProprietorNo
Enumeration DateDecember 2, 2011
Last NPPES UpdateJune 17, 2025
NPPES CertifiedJune 17, 2025
✔ NPI 1225306400 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in WI · 609-125
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X · License 1070-123 (WI)
1836 SOUTH AVE, La Crosse, WI 54601
Open in Google Maps ↗

Other Names 1

Former Name (1)Ann Louise Brennan Lpc, Lcsw

Secondary Practice Location 1

Location 12925 Mondovi RdEau Claire, WI 54701-6141 · Phone (715) 832-0238 · Fax (715) 832-0771

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Aspirus Health Plan, HealthPartners, Quartz.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann Brennan Weidenheim Lcsw,lpc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ann Weidenheim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Gundersen Lutheran Medical Center, Inc
Same address
Clinic/Center
710 DENTON ST
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,457 clinicians in this Medicare group
NPI 1619210895 (608) 782-7300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEFFREY BRIAN TROHKIMOINEN M.D.
Anesthesiology
1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601
La Crosse County (608) 775-2031
JESSICA E THESING CRNA
Nurse Anesthetist, Certified Registered
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
DR. MICHAEL DAVID SMITH PSY.D.
Psychologist
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JESSICA MAE RASMUSSEN
Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JULIE SONSALLA NP
Nurse Practitioner (Adult Health)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
LAURA KLINGBEIL
Orthopaedic Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
SUSAN CAROL SORRENTINO RN
Registered Nurse (Addiction (Substance Use Disorder))
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
NAOMI MUTHONI RUIRU NP
Nurse Practitioner (Family)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ann Weidenheim's NPI number?

The NPI number for Ann Weidenheim is 1225306400. It was assigned to this individual provider in the NPPES registry on December 2, 2011. The provider is also known as Ann Louise Brennan Lpc, Lcsw.

Where is Ann Weidenheim located?

Ann Weidenheim practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.

What is Ann Weidenheim's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Ann Weidenheim enrolled in Medicare?

Yes. Ann Weidenheim is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ann Weidenheim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Weidenheim reassigns Medicare benefits to Gundersen Lutheran Medical Center, Inc (La Crosse, WI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ann Weidenheim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ann Weidenheim accept?

Health plans from Aspirus Health Plan, HealthPartners and Quartz list Ann Weidenheim as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ann Weidenheim was last updated on June 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.