MS. KATHERINE E AUSSEM PNP
NPI 1023297264
Nurse Practitioner - Pediatrics in Milwaukee, WI
About Ms. Katherine E Aussem Pnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KATHERINE E AUSSEM PNP (NPI 1023297264) is an individual pediatrics provider in Milwaukee, Wisconsin, licensed in Wisconsin (136537) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 3
Other Identifiers 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
Ms. Katherine E Aussem Pnp 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
2Medicare enrollment records show Katherine Aussem reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Childrens Specialty Group Inc
- 424 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 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 53226 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.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Katherine Aussem's NPI number?
The NPI number for Katherine Aussem is 1023297264. It was assigned to this individual provider in the NPPES registry on October 24, 2007. The provider is also known as Ms. Katherine E. Aussem Kressin Pnp.
Where is Katherine Aussem located?
Katherine Aussem practices at 9000 W Wisconsin Ave Pediatric Urology, Milwaukee, WI 53226. The listed phone number is (414) 266-6955.
What is Katherine Aussem's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Katherine Aussem enrolled in Medicare?
Yes. Katherine Aussem 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 Katherine Aussem's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Aussem reassigns Medicare benefits to 2 organizations: Children's Specialty Group, Inc. (Milwaukee, WI) and The Medical College Of Wisconsin, Inc. (Milwaukee, WI). 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 Katherine Aussem's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Aussem accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and Network Health list Katherine Aussem 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 Katherine Aussem was last updated on June 5, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.
# Ms. Katherine E Aussem, PNP · NPI 1023297264
Pediatrics physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since October 24, 2007.
## Identity
- **NPI:** 1023297264 (Entity type: Individual)
- **Enumerated:** October 24, 2007
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** 136537 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9000 W WISCONSIN AVE, PEDIATRIC UROLOGY, Milwaukee, WI 53226-4874
- **Phone:** (414) 266-6955 · **Fax:** (414) 266-1752
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Children's Specialty Group, Inc. (NPI 1942970405, Milwaukee, WI); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 5, 2020
- **Other identifiers:** Medicaid 10223297264 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1023297264) · Data from the CMS NPPES public registry.