MS. LILLIAN MARIE TOSHNER FNP-C
NPI 1821935545
Nurse Practitioner - Family in Sussex, WI
About Ms. Lillian Marie Toshner Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. LILLIAN MARIE TOSHNER FNP-C (NPI 1821935545) is an individual family provider in Sussex, Wisconsin, licensed in Wisconsin (1834333) and active in the NPI registry since April 2026. She is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Other (2026).
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
Ms. Lillian Marie Toshner Fnp-c 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 Lillian Toshner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pewaukee, WI 53072
- Reassigned Medicare billing, Wisconsin enrollment
- 528 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Waukesha Memorial Hospital
Acute Care Hospitals · Waukesha, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53089 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SUSSEX, WI 53089
SUSSEX, WI 53089
SUSSEX, WI 53089
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 Lillian Toshner's NPI number?
The NPI number for Lillian Toshner is 1821935545. It was assigned to this individual provider in the NPPES registry on April 30, 2026.
Where is Lillian Toshner located?
Lillian Toshner practices at N57w24950 N Corporate Cir, Sussex, WI 53089. The listed phone number is (262) 820-3093.
What is Lillian Toshner's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Lillian Toshner enrolled in Medicare?
Yes. Lillian Toshner 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 Lillian Toshner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lillian Toshner reassigns Medicare benefits to Prohealth Medical Group Inc (Pewaukee, 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 Lillian Toshner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lillian Toshner accept?
Health plans from UnitedHealthcare list Lillian Toshner 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 Lillian Toshner affiliated with any hospitals?
According to CMS data, Lillian Toshner is affiliated with Waukesha Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Lillian Toshner was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ms. Lillian Marie Toshner, FNP-C · NPI 1821935545
Family physician in Sussex, Wisconsin. Individual provider, active in the CMS NPPES registry since April 30, 2026.
## Identity
- **NPI:** 1821935545 (Entity type: Individual)
- **Enumerated:** April 30, 2026
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 1834333 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** N57W24950 N CORPORATE CIR, Sussex, WI 53089-4383
- **Phone:** (262) 820-3093
## 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:** Prohealth Medical Group Inc (NPI 1396887709, Pewaukee, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2026
## Record status
- **NPPES last updated:** April 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821935545) · Data from the CMS NPPES public registry.