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DR. NICOLE MARIE HENNESSY M.D.
NPI 1851552418
Pediatrics in La Crosse, WI

Active since June 17, 2008PECOS Enrolled
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: December 11, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Nicole Marie Hennessy M.d. NPPES

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

DR. NICOLE MARIE HENNESSY M.D. (NPI 1851552418) is an individual pediatrics provider in La Crosse, Wisconsin, licensed in Wisconsin (55141) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851552418
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. NICOLE MARIE HENNESSYCredential: M.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
Enumeration DateJune 17, 2008
Last NPPES UpdateDecember 11, 2015
✔ NPI 1851552418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in WI · 55141
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1836 SOUTH AVE, La Crosse, WI 54601
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Other Names 1

Former Name (1)Nicole Marie Fischer Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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)

Dr. Nicole Marie Hennessy M.d. 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 Reassignments

2

Medicare enrollment records show Nicole Hennessy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gundersen Clinic Ltd
Same address
Clinic/Center
1836 SOUTH AVE
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 928 clinicians in this Medicare group
NPI 1851343115 (608) 782-7300
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.

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 Nicole Hennessy's NPI number?

The NPI number for Nicole Hennessy is 1851552418. It was assigned to this individual provider in the NPPES registry on June 17, 2008. The provider is also known as Nicole Marie Fischer MD.

Where is Nicole Hennessy located?

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

What is Nicole Hennessy's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Nicole Hennessy enrolled in Medicare?

Yes. Nicole Hennessy is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nicole Hennessy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicole Hennessy reassigns Medicare benefits to 2 organizations: Gundersen Clinic Ltd (La Crosse, WI) and Gundersen Lutheran Medical Center, Inc (La Crosse, WI). Each 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 Nicole Hennessy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicole Hennessy accept?

Health plans from HealthPartners list Nicole Hennessy 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 Nicole Hennessy was last updated on December 11, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.