LIBERTY J ZYDUCK RN, RD, NNP
NPI 1336371780
Nurse Practitioner - Neonatal in Marshfield, WI
About Liberty J Zyduck Rn, Rd, Nnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LIBERTY J ZYDUCK RN, RD, NNP (NPI 1336371780) is an individual neonatal provider in Marshfield, Wisconsin, licensed in Wisconsin (11172) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Evansville, and is a graduate of Ohio Medical University (2009).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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 (PECOS)
Liberty J Zyduck Rn, Rd, Nnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
13Medicare enrollment records show Liberty Zyduck reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Stillwater, MN 55082
- Reassigned Medicare billing, Minnesota enrollment
- 2,361 clinicians in this Medicare group
Woodbury, MN 55125
- Reassigned Medicare billing, Minnesota enrollment
- 3,633 clinicians in this Medicare group
Woodbury, MN 55125
- Reassigned Medicare billing, Minnesota enrollment
- 955 clinicians in this Medicare group
Chisago City, MN 55013
- Reassigned Medicare billing, Minnesota enrollment
- 2,302 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 54449 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.
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
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 Liberty Zyduck's NPI number?
The NPI number for Liberty Zyduck is 1336371780. It was assigned to this individual provider in the NPPES registry on August 19, 2009.
Where is Liberty Zyduck located?
Liberty Zyduck practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Liberty Zyduck's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Liberty Zyduck enrolled in Medicare?
Yes. Liberty Zyduck is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Liberty Zyduck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Liberty Zyduck reassigns Medicare benefits to 13 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Flambeau Hospital Inc (Park Falls, WI) and 8 more organizations, listed in the Medicare section above. 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 Liberty Zyduck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Liberty Zyduck accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource, HealthPartners and Sanford Health Plan list Liberty Zyduck 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 Liberty Zyduck was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Liberty J Zyduck, RN, RD, NNP · NPI 1336371780
Neonatal physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since August 19, 2009.
## Identity
- **NPI:** 1336371780 (Entity type: Individual)
- **Enumerated:** August 19, 2009
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 11172 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 N OAK AVE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5511
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); Flambeau Hospital Inc (NPI 1194317966, Park Falls, WI); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio Medical University, class of 2009
## Record status
- **NPPES last updated:** July 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1336371780) · Data from the CMS NPPES public registry.