ELLEN J HERRERA NP
NPI 1891523700
Nurse Practitioner in Madison, WI
About Ellen J Herrera Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN J HERRERA NP (NPI 1891523700) is an individual nurse practitioner in Madison, Wisconsin, licensed in Wisconsin (15634-33) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
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
Ellen J Herrera Np 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 Reassignment
Medicare enrollment records show Ellen Herrera reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unitypoint Health - Meriter
Acute Care Hospitals · Madison, WIUniversity Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53715 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.
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 Ellen Herrera's NPI number?
The NPI number for Ellen Herrera is 1891523700. It was assigned to this individual provider in the NPPES registry on July 23, 2024.
Where is Ellen Herrera located?
Ellen Herrera practices at 20 S Park St, Madison, WI 53715. The listed phone number is (608) 287-2090.
What is Ellen Herrera's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Ellen Herrera enrolled in Medicare?
Yes. Ellen Herrera 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 organization bills Medicare for Ellen Herrera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Herrera reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). The 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 Ellen Herrera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Herrera accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz and 1 other insurer list Ellen Herrera 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 Ellen Herrera affiliated with any hospitals?
According to CMS data, Ellen Herrera is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.
When was this NPI record last updated?
The NPPES record for Ellen Herrera was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Ellen J Herrera, NP · NPI 1891523700
Nurse Practitioner physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since July 23, 2024.
## Identity
- **NPI:** 1891523700 (Entity type: Individual)
- **Enumerated:** July 23, 2024
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 15634-33 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 S PARK ST, Madison, WI 53715-1348
- **Phone:** (608) 287-2090
## 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:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** March 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1891523700) · Data from the CMS NPPES public registry.