Sarah S. Nielsen, DO
Diagnostic Radiology Physician · Wausau, WI
Sarah S. Nielsen, DO is a diagnostic radiology physician with a practice address in Wausau, Wisconsin, and NPI 1134137995, issued on Aug 4, 2006. Check the license (Wisconsin 49170, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sarah S. Nielsen
- Credential
- DO
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 49170 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2727 Plaza Dr, Wausau, WI 54401
- Phone
- (715) 847-3000
- Enumerated
- Aug 4, 2006
- Record last updated
- Nov 17, 2022
- Medicare enrollment
- Enrolled (PECOS I20060919000121); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2000
- Entity
- Type 1 · individual
Also registered at 2727 Plaza Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pablo Abrego, MDNephrology Physician1689774317
- Diane Alber, NPNurse Practitioner1548613581
- Rebeca Argiro, LPCProfessional Counselor1467946871
- Vicky Baker, MDFamily Medicine Physician1811009061
- Scott Bauer, ODOptometrist1558987354
- Heather Bennett, NP-CFamily Nurse Practitioner1386102523
Verify Sarah S. Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49170Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 78.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Marshfield Clinic IncWausau, WI
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diagnostic Radiology Physician providers in Wisconsin
There are 1,005 diagnostic radiology physician records in Wisconsin.
Other diagnostic radiology physician records in Wisconsin
- Ibrahim AbdallaMadison, WI1467266809
- James Aceto, M.D.Mequon, WI1609858158
- Mohit Agarwal, MDMilwaukee, WI1265864169
- Sarah Agnew, RT (R).Madison, WI1730742776
- Serra Aktan, MDMadison, WI1427589662
- Maysoon Al-Hihi, MDMilwaukee, WI1093741399
- Giustino Albanese, M.D.Madison, WI1265634307
- Philip Albert, M.D.Wausau, WI1073619623
- Saad Ali, M.D.Milwaukee, WI1467617662
- Hailey Allen, M.D.Madison, WI1619235157
Common questions
What is Sarah S. Nielsen, DO's NPI number?
Sarah S. Nielsen, DO's National Provider Identifier (NPI) is 1134137995, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sarah S. Nielsen, DO located?
The NPPES record lists a practice address at 2727 Plaza Dr, Wausau, WI, 54401. Phone: (715) 847-3000. Providers update this record themselves, so call before visiting.
How can I verify Sarah S. Nielsen, DO's license?
NPPES lists Wisconsin license number 49170, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Sarah S. Nielsen, DO's MIPS final score?
The 2023 MIPS final score is 78.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.