KRYSTIAN K KOZAK MD
NPI 1336522531
Hospitalist in Marinette, WI
About Krystian K Kozak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRYSTIAN K KOZAK MD (NPI 1336522531) is an individual hospitalist provider in Marinette, Wisconsin, licensed in Wisconsin (N68055-20) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, is affiliated with Aurora Health Care Central Inc, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
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
Krystian K Kozak 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 Reassignment
Medicare enrollment records show Krystian Kozak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sheboygan, WI 53081
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora Health Care Central Inc
Acute Care Hospitals · Sheboygan, WIAurora Medical Ctr Washington County
Acute Care Hospitals · Hartford, WIAurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIAurora Medical Center
Acute Care Hospitals · Grafton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
MARINETTE, WI 54143
MARINETTE, WI 54143
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 Krystian Kozak's NPI number?
The NPI number for Krystian Kozak is 1336522531. It was assigned to this individual provider in the NPPES registry on July 7, 2015.
Where is Krystian Kozak located?
Krystian Kozak practices at 3003 University Dr, Marinette, WI 54143. The listed phone number is (715) 735-4200.
What is Krystian Kozak's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Krystian Kozak enrolled in Medicare?
Yes. Krystian Kozak 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 Krystian Kozak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Krystian Kozak reassigns Medicare benefits to Aurora Medical Group, Inc. (Sheboygan, 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 Krystian Kozak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Krystian Kozak accept?
Health plans from CareSource (Common Ground Healthcare) list Krystian Kozak 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 Krystian Kozak affiliated with any hospitals?
According to CMS data, Krystian Kozak is affiliated with Aurora Health Care Central Inc, Aurora Medical Ctr Washington County, Aurora St Lukes Medical Center and Aurora Medical Center.
When was this NPI record last updated?
The NPPES record for Krystian Kozak was last updated on March 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Krystian K Kozak, MD · NPI 1336522531
Hospitalist physician in Marinette, Wisconsin. Individual provider, active in the CMS NPPES registry since July 7, 2015.
## Identity
- **NPI:** 1336522531 (Entity type: Individual)
- **Enumerated:** July 7, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** N68055-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 3003 UNIVERSITY DR, Marinette, WI 54143
- **Phone:** (715) 735-4200
## 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:** Aurora Medical Group, Inc. (NPI 1174670244, Sheboygan, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** March 5, 2024
- **Other identifiers:** Medicaid 100075430 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1336522531) · Data from the CMS NPPES public registry.