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MADELINE RAE NIKOLAI MD
NPI 1033964689
Family Medicine in La Crosse, WI

Active since April 18, 2024PECOS Enrolled
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: December 2, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 2, 2025, Sep 5, 2024, Apr 18, 2024 (3 updates tracked since 2024).

About Madeline Rae Nikolai Md NPPES

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

MADELINE RAE NIKOLAI MD (NPI 1033964689) is an individual family medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (86309-20) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of University Of Wisconsin School Of Medicine (2024).

NPPES Registry Identity

NPI1033964689
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMADELINE RAE NIKOLAICredential: MD
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 CMSUniversity Of Wisconsin School Of MedicineGraduated 2024
Enumeration DateApril 18, 2024
Last NPPES UpdateDecember 2, 20253 updates tracked since enumeration
NPPES CertifiedDecember 2, 2025
✔ NPI 1033964689 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in WI · 86309-20
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1836 SOUTH AVE, La Crosse, WI 54601
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Other Names 1

Former Name (1)Madeline Rae Brown Md

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.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Madeline Rae Nikolai Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901341676
PECOS Enrollment IDI20251211003121
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 Madeline Nikolai 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
1836 SOUTH AVE
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,457 clinicians in this Medicare group
NPI 1689918377 (608) 782-7300

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Madeline Nikolai's NPI number?

The NPI number for Madeline Nikolai is 1033964689. It was assigned to this individual provider in the NPPES registry on April 18, 2024. The provider is also known as Madeline Rae Brown MD.

Where is Madeline Nikolai located?

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

What is Madeline Nikolai's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Madeline Nikolai enrolled in Medicare?

Yes. Madeline Nikolai is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Madeline Nikolai's services?

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

What insurance does Madeline Nikolai accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and HealthPartners list Madeline Nikolai 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 Madeline Nikolai affiliated with any hospitals?

According to CMS data, Madeline Nikolai is affiliated with Gundersen Lutheran Medical Center.

When was this NPI record last updated?

The NPPES record for Madeline Nikolai was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.