Sarah S Nielsen, DO - Medicare Diagnostic Radiology in Wausau, WI

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Sarah S Nielsen, DO is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Wausau, Wisconsin. She went to Michigan State University College Of Osteopathic Medicine and graduated in 2000 and has 25 years of diverse experience with area of expertise as Diagnostic Radiology. She is a member of the group practice Marshfield Clinic Inc, Mchs Hospitals Inc and her current practice location is 2727 Plaza Dr, Wausau, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (715) 847-3000.

Sarah S Nielsen is licensed to practice in Wisconsin (license number 49170) 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 1134137995.

Contact Information

Sarah S Nielsen, DO
2727 Plaza Dr,
Wausau, WI 54401-4129
(715) 847-3000
Not Available

Map and Direction




Physician's Profile

Full NameSarah S Nielsen
GenderFemale
SpecialityDiagnostic Radiology
Experience25 Years
Location2727 Plaza Dr, Wausau, 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:
  • Sarah S Nielsen attended and graduated from Michigan State University College Of Osteopathic Medicine in 2000
  NPI Data:
  • NPI Number: 1134137995
  • Provider Enumeration Date: 08/04/2006
  • Last Update Date: 11/17/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6608871033
  • Enrollment ID: I20060919000121

Medical Identifiers

Medical identifiers for Sarah S Nielsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134137995NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology 49170 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lakeview Medical Center Of Rice LakeRice lake, WIHospital
Marshfield Medical Center - LadysmithLadysmith, WIHospital
Marshfield Medical CenterMarshfield, WIHospital
Ascension St Clares HospitalWeston, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Marshfield Clinic Inc2264345206175
Mchs Hospitals Inc56980711731045

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. Sarah S Nielsen 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 NameMemorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346239373
PECOS PAC ID: 2365433224
Enrollment ID: O20040519001426
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 NameMchs Hospitals Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1952890873
PECOS PAC ID: 5698071173
Enrollment ID: O20180904002962

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. Sarah S Nielsen 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
Sarah S Nielsen, DO
1000 N Oak Ave,
Marshfield, WI 54449-5703

Ph: (715) 387-5511		Sarah S Nielsen, DO
2727 Plaza Dr,
Wausau, WI 54401-4129

Ph: (715) 847-3000

Reviews and Comments


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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).

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