Marissa Lorena Walczak, FNP-BC - Medicare Nurse Practitioner in Rice Lake, WI

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Marissa Lorena Walczak, FNP-BC is a medicare enrolled "Nurse Practitioner" in Rice Lake, Wisconsin. Her current practice location is 2900 S Wisconsin Ave, Rice Lake, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (715) 997-3915.

Marissa Lorena Walczak is licensed to practice in Wisconsin (license number 13864-33) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1871291906.

Contact Information

Marissa Lorena Walczak, FNP-BC
2900 S Wisconsin Ave,
Rice Lake, WI 54868-8578
(715) 997-3915
Not Available

Map and Direction




Provider's Profile

Full NameMarissa Lorena Walczak
GenderFemale
SpecialityNurse Practitioner
Location2900 S Wisconsin Ave, Rice Lake, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1871291906
  • Provider Enumeration Date: 02/17/2023
  • Last Update Date: 06/03/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5193184802
  • Enrollment ID: I20230628003265

Medical Identifiers

Medical identifiers for Marissa Lorena Walczak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871291906NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 13864-33 (Wisconsin)Primary

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. Marissa Lorena Walczak allows following entities to bill medicare on her behalf.
Entity NameMarshfield Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952347981
PECOS PAC ID: 2264345206
Enrollment ID: O20031106000590
Entity NameBeaver Dam Community Hospitals Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972188555
PECOS PAC ID: 2567370539
Enrollment ID: O20040210000666
Entity NameMemorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346239373
PECOS PAC ID: 2365433224
Enrollment ID: O20040519001426
Entity NameFlambeau Hospital, Inc.
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1700963048
PECOS PAC ID: 9032029871
Enrollment ID: O20070828000478
Entity NameMemorial Hospital Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1346239373
PECOS PAC ID: 2365433224
Enrollment ID: O20110526000807
Entity NameMchs Hospitals Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093221434
PECOS PAC ID: 5698071173
Enrollment ID: O20180208000096
Entity NameLakeview Medical Center Inc Of Rice Lake
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093201832
PECOS PAC ID: 6103737820
Enrollment ID: O20180817001484
Entity NameFlambeau Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194317966
PECOS PAC ID: 9032029871
Enrollment ID: O20210409000059

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. Marissa Lorena Walczak 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
Marissa Lorena Walczak, FNP-BC
719 W Hamilton Ave Ste B,
Eau Claire, WI 54701-6970

Ph: () -		Marissa Lorena Walczak, FNP-BC
2900 S Wisconsin Ave,
Rice Lake, WI 54868-8578

Ph: (715) 997-3915

Reviews and Comments


Nurse Practitioner Nurses in Rice Lake, WI

Stacy A. Ayres, NP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 2021 Cenex Dr, Rice Lake, WI 54868
Phone: 715-234-7246    
Kelly J Olson, NP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1700 W Stout St, Rice Lake, WI 54868
Phone: 715-236-8100    
Danielle Ranee Soltis,
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1700 W Stout St, Rice Lake, WI 54868
Phone: 715-234-1515    
Carol Matthys, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 2021 Cenex Dr, Suite J, Rice Lake, WI 54868
Phone: 715-234-7246    
Sandra J. Polzin, NP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1215 W Knapp St, Rice Lake, WI 54868
Phone: 715-236-4450    
Jamie Gohde, FNP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 2900 S Wisconsin Ave, Rice Lake, WI 54868
Phone: 715-817-6809    
Roberta L Herrick, APRN
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1700 W Stout St, Rice Lake, WI 54868
Phone: 715-236-8100    

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.