MRS. MARINA KOVACEVIC HORSCHAK FNP
NPI 1134548274
Nurse Practitioner - Family in Sussex, WI
About Mrs. Marina Kovacevic Horschak Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARINA KOVACEVIC HORSCHAK FNP (NPI 1134548274) is an individual family provider in Sussex, Wisconsin, licensed in Wisconsin (5526-33) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Marina Kovacevic Horschak Fnp 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 Marina Horschak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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 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.
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 Marina Horschak's NPI number?
The NPI number for Marina Horschak is 1134548274. It was assigned to this individual provider in the NPPES registry on April 15, 2014.
Where is Marina Horschak located?
Marina Horschak practices at N51w24953 Lisbon Rd, Sussex, WI 53089. The listed phone number is (414) 699-5808.
What is Marina Horschak's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marina Horschak enrolled in Medicare?
Yes. Marina Horschak 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 Marina Horschak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marina Horschak reassigns Medicare benefits to Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, 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 Marina Horschak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marina Horschak accept?
Health plans from Anthem Blue Cross and Blue Shield and CareSource (Common Ground Healthcare) list Marina Horschak 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 Marina Horschak was last updated on July 22, 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.
# Mrs. Marina Kovacevic Horschak, FNP · NPI 1134548274
Family physician in Sussex, Wisconsin. Individual provider, active in the CMS NPPES registry since April 15, 2014.
## Identity
- **NPI:** 1134548274 (Entity type: Individual)
- **Enumerated:** April 15, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 5526-33 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** N51W24953 LISBON RD, Sussex, WI 53089
- **Phone:** (414) 699-5808
## 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:** Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 22, 2026
- **Other identifiers:** Medicaid 100039112 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1134548274) · Data from the CMS NPPES public registry.