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DR. THOMAS MARK LEDOUX PSY.D.
NPI 1255693115
Psychologist - Cognitive & Behavioral in La Crosse, WI

Active since June 15, 2012PECOS EnrolledAccepts Medicare Assignment
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: October 18, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 18, 2017, Sep 13, 2016 (2 updates tracked since 2016).

About Dr. Thomas Mark Ledoux Psy.d. NPPES

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

DR. THOMAS MARK LEDOUX PSY.D. (NPI 1255693115) is an individual cognitive & behavioral provider in La Crosse, Wisconsin, licensed in Wisconsin (3406) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1255693115
Entity TypeIndividualMale
Primary Taxonomy103TB0200X
Provider Legal NameDR. THOMAS MARK LEDOUXCredential: PSY.D.
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
Medical School CMSOtherGraduated 2015
Enumeration DateJune 15, 2012
Last NPPES UpdateOctober 18, 20172 updates tracked since enumeration
✔ NPI 1255693115 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · Cognitive & BehavioralBehavioral Health & Social Service Providers
Taxonomy Code103TB0200X
License✔ Licensed in WI · 3406
Definition
A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 3406 (WI)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1836 SOUTH AVE, La Crosse, WI 54601
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Mark Ledoux Psy.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325335185
PECOS Enrollment IDI20160921002008
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 Thomas Ledoux 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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Group psychotherapy 90853
Group psychotherapy involves individuals discussing their issues in a group setting, led by a professional therapist. It provides a supportive environment where members can learn from each other's experiences, gain different perspectives, and develop new ways to handle challenges.
172 services45 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
32 services13 patients
Psychotherapy, 30 minutes 90832
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 30-minute session, the therapist helps you explore feelings, thoughts, and behaviors to better understand yourself and manage life's challenges.
19 services14 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520087
Location1910 South AveLa Crosse, WI 54601 · La Crosse County
Emergency services Birthing friendly

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 Thomas Ledoux's NPI number?

The NPI number for Thomas Ledoux is 1255693115. It was assigned to this individual provider in the NPPES registry on June 15, 2012.

Where is Thomas Ledoux located?

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

What is Thomas Ledoux's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Cognitive & Behavioral, with taxonomy code 103TB0200X.

Is Thomas Ledoux enrolled in Medicare?

Yes. Thomas Ledoux is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Thomas Ledoux's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Ledoux 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 Thomas Ledoux's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Ledoux accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and Quartz list Thomas Ledoux 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.

Is Thomas Ledoux affiliated with any hospitals?

According to CMS data, Thomas Ledoux is affiliated with Gundersen Lutheran Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Ledoux was last updated on October 18, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.