Hayley Larson, RD, LD - Medicare Dietitian in Onalaska, WI

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Hayley Larson, RD, LD is a medicare enrolled "Dietitian, Registered" provider in Onalaska, Wisconsin. She graduated from medical school in 2025 and has 1 years of diverse experience with area of expertise as Registered Dietitian Or Nutrition Professional. She is a member of the group practice Gundersen Lutheran Medical Center Inc and her current practice location is 3111 Gundersen Dr, Onalaska, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (508) 782-7300.

Hayley Larson is licensed to practice in Wisconsin (license number 6271-29) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1326901687.

Contact Information

Hayley Larson, RD, LD
3111 Gundersen Dr,
Onalaska, WI 54650-8405
(508) 782-7300
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameHayley Larson
GenderFemale
SpecialityRegistered Dietitian Or Nutrition Professional
Experience1 Years
Location3111 Gundersen Dr, Onalaska, Wisconsin
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Hayley Larson graduated from medical school in 2025
  NPI Data:
  • NPI Number: 1326901687
  • Provider Enumeration Date: 12/04/2025
  • Last Update Date: 12/08/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6305331265
  • Enrollment ID: I20251218002891

Medical Identifiers

Medical identifiers for Hayley Larson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326901687NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
133V00000XDietitian, Registered 6271-29 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414888

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Hayley Larson allows following entities to bill medicare on her behalf.
Provider NameGundersen Lutheran Medical Center Inc
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1225873458
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Hayley Larson is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Hayley Larson, RD, LD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300		Hayley Larson, RD, LD
3111 Gundersen Dr,
Onalaska, WI 54650-8405

Ph: (508) 782-7300

Reviews and Comments


Dietitian, Registered in Onalaska, WI

Emma Lonergan, RD
Dietitian
Medicare: Not Enrolled in Medicare
Practice Location: 1328 Red Cedar Court, Onalaska, WI 54650
Phone: 773-906-4773    
Abigail R Breitbach, RD
Dietitian
Medicare: Medicare Enrolled
Practice Location: 3111 Gundersen Dr, Onalaska, WI 54650
Phone: 608-775-8100    
Miss Ilkay N/a Baseski,
Dietitian
Medicare: Accepting Medicare Assignments
Practice Location: 400 Court St S Unit 215, Onalaska, WI 54650
Phone: 715-440-1693    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.