SARA J NEILL NNP
NPI 1710258314
Nurse Practitioner - Neonatal in Marshfield, WI
About Sara J Neill Nnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARA J NEILL NNP (NPI 1710258314) is an individual neonatal provider in Marshfield, Wisconsin, licensed in Wisconsin (9817) and active in the NPI registry since January 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Springfield.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sara J Neill Nnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
8Medicare enrollment records show Sara Neill reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Durham, NC 27710
- Reassigned Medicare billing, North Carolina enrollment
- 1,503 clinicians in this Medicare group
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sara Neill's NPI number?
The NPI number for Sara Neill is 1710258314. It was assigned to this individual provider in the NPPES registry on January 13, 2012.
Where is Sara Neill located?
Sara Neill practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Sara Neill's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Sara Neill enrolled in Medicare?
Yes. Sara Neill is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sara Neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sara Neill reassigns Medicare benefits to 8 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Flambeau Hospital Inc (Park Falls, WI) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sara Neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sara Neill accept?
Health plans from Anthem Blue Cross and Blue Shield and Medica list Sara Neill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Sara Neill was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Sara J Neill, NNP · NPI 1710258314
Neonatal physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since January 13, 2012.
## Identity
- **NPI:** 1710258314 (Entity type: Individual)
- **Enumerated:** January 13, 2012
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 9817 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 N OAK AVE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5511
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); Flambeau Hospital Inc (NPI 1194317966, Park Falls, WI); and 3 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1710258314) · Data from the CMS NPPES public registry.