Sarah Nielsen, DO
NPI 1134137995 · Diagnostic Radiology Physician · Wausau, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Nielsen, DO is a Diagnostic Radiology Physician provider in Wausau, WI (NPI 1134137995).
Provider details
- NPI number
- 1134137995
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 49170 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,035 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 1,913 | $57 |
| Screening 3d Breast Mammography77063 | 1,877 | $25 |
| Screening Mammography77067 | 397 | $34 |
| Screening 3d Breast Mammography77063 | 385 | $27 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 155 | $22 |
| Limited Ultrasound Scan of 1 Breast76642 | 110 | $40 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2022-11-17
Frequently asked questions
- What is Sarah Nielsen's NPI number?
- Sarah Nielsen's National Provider Identifier (NPI) is 1134137995, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Nielsen's specialty?
- Sarah Nielsen is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Nielsen located?
- Sarah Nielsen's practice location on file with NPPES is 2727 Plaza Dr, Wausau, WI 54401-4129.
- What is Sarah Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Sarah Nielsen is (715) 847-3000.
- Does Sarah Nielsen accept Medicare?
- Sarah Nielsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Nielsen's NPI active?
- Yes — Sarah Nielsen's NPI (1134137995) is active in the NPPES registry as of the last update on 2022-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.