JENNIFER A MIRRIELEES MD
NPI 1205465291
Emergency Medicine in Marshfield, WI
About Jennifer A Mirrielees Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JENNIFER A MIRRIELEES MD (NPI 1205465291) is an individual emergency medicine provider in Marshfield, Wisconsin, licensed in Wisconsin (77764-20) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Beloit Health System, and maintains a secondary practice location in Waunakee.
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 and accepts Medicare assignment
Jennifer A Mirrielees Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Jennifer Mirrielees reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Athens, WI 54411
- Reassigned Medicare billing, Wisconsin enrollment
- 376 clinicians in this Medicare group
Portage, WI 53901
- Reassigned Medicare billing, Wisconsin enrollment
- 359 clinicians in this Medicare group
Cottage Grove, WI 53527
- Reassigned Medicare billing, Wisconsin enrollment
- 86 clinicians in this Medicare group
Fort Atkinson, WI 53538
- Reassigned Medicare billing, Wisconsin enrollment
- 67 clinicians in this Medicare group
Edgerton, WI 53534
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1154350049 (Wisconsin)
- 70 clinicians in this Medicare group
Beloit, WI 53511
- Reassigned Medicare billing, Wisconsin enrollment
- 110 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beloit Health System
Acute Care Hospitals · Beloit, WIStoughton Hospital
Critical Access Hospitals · Stoughton, WIPhysician 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 Jennifer Mirrielees's NPI number?
The NPI number for Jennifer Mirrielees is 1205465291. It was assigned to this individual provider in the NPPES registry on April 2, 2020.
Where is Jennifer Mirrielees located?
Jennifer Mirrielees practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Jennifer Mirrielees's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jennifer Mirrielees enrolled in Medicare?
Yes. Jennifer Mirrielees is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jennifer Mirrielees's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Mirrielees reassigns Medicare benefits to 6 organizations: Aspirus Medford Hospital & Clinics, Inc. (Athens, WI), Divine Savior Healthcare, Inc. (Portage, WI), Stoughton Hospital Association (Cottage Grove, WI), Swea Fort Sc (Fort Atkinson, WI), Edgerton Hospital And Health Services (Edgerton, WI) and 1 more organization, 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 Jennifer Mirrielees's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jennifer Mirrielees accept?
Health plans from Anthem Blue Cross and Blue Shield, Group Health Cooperative-SCW and Sanford Health Plan list Jennifer Mirrielees 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.
Is Jennifer Mirrielees affiliated with any hospitals?
According to CMS data, Jennifer Mirrielees is affiliated with Beloit Health System and Stoughton Hospital.
When was this NPI record last updated?
The NPPES record for Jennifer Mirrielees was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.
# Jennifer A Mirrielees, MD · NPI 1205465291
Emergency Medicine physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since April 2, 2020.
## Identity
- **NPI:** 1205465291 (Entity type: Individual)
- **Enumerated:** April 2, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 77764-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 N OAK AVE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Aspirus Medford Hospital & Clinics, Inc. (NPI 1760912919, Athens, WI); Divine Savior Healthcare, Inc. (NPI 1124083894, Portage, WI); Stoughton Hospital Association (NPI 1811733066, Cottage Grove, WI); Swea Fort Sc (NPI 1295552065, Fort Atkinson, WI); Edgerton Hospital And Health Services (NPI 1538845805, Edgerton, WI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** October 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1205465291) · Data from the CMS NPPES public registry.