1. Home
  2. Directory
  3. Wisconsin
  4. Green Bay
  5. Nurse Practitioner
  6. NPI Profile

CARRIE L MATERNIAK NP
NPI 1568921641
Nurse Practitioner in Green Bay, WI

Active since March 18, 2019PECOS Enrolled
2845 GREENBRIER RD, GREEN BAY, WI 54311(920) 288-8250(920) 288-8255 Get Directions Write a Review

NPPES record last updated: October 29, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 20, 2019, May 3, 2019, Apr 10, 2019 and 1 more (4 updates tracked since 2019).

About Carrie L Materniak Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CARRIE L MATERNIAK NP (NPI 1568921641) is an individual nurse practitioner in Green Bay, Wisconsin, licensed in Wisconsin (9138) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Minneapolis.

NPPES Registry Identity

NPI1568921641
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCARRIE L MATERNIAKCredential: NP
Location Address2845 GREENBRIER RDGreen Bay, WI 54311-6519
Mailing Address164 N BroadwayGreen Bay, WI 54303-2728 · (920) 288-8250
Phone(920) 288-8250
Fax(920) 288-8255
Sole ProprietorNo
Enumeration DateMarch 18, 2019
Last NPPES UpdateOctober 29, 20254 updates tracked since enumeration
NPPES CertifiedOctober 29, 2025
✔ NPI 1568921641 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in WI · 9138
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 9138 (WI), 11429 (MN)
2845 GREENBRIER RD, Green Bay, WI 54311
Open in Google Maps ↗

Secondary Practice Location 1

Location 12925 Chicago AveMinneapolis, MN 55407-1321 · Phone (612) 262-9000

Other Identifiers 1

Medicaid100087061WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carrie L Materniak Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Carrie Materniak reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oak Medical Sc
99 mi
Internal Medicine
N20W22961 WATERTOWN RD
Waukesha, WI 53186
  • Reassigned Medicare billing, Wisconsin enrollment
  • 191 clinicians in this Medicare group
NPI 1669910345 (262) 875-5070
Maple Medical Sc
101 mi
Physical Medicine & Rehabilitation
2428 N GRANDVIEW BLVD STE 102
Waukesha, WI 53188
  • Reassigned Medicare billing, Wisconsin enrollment
  • 141 clinicians in this Medicare group
NPI 1487152104 (877) 307-3226
Openloop Healthcare Partners Wisconsin, Sc
121 mi
General Practice
301 S BEDFORD ST
Madison, WI 53703
  • Reassigned Medicare billing, Wisconsin enrollment
  • 5 clinicians in this Medicare group
NPI 1083371629 (515) 216-0962
Allina Health System
244 mi
Family Medicine
1285 NININGER RD
Hastings, MN 55033
  • Reassigned Medicare billing, Minnesota enrollment
  • 2,609 clinicians in this Medicare group
NPI 1578869293 (651) 480-4200
Virtualcare Medical Group PA
666 mi
Family Medicine
9711 WASHINGTONIAN BLVD STE 550
Gaithersburg, MD 20878
  • Reassigned Medicare billing, Wisconsin enrollment
NPI 1194308809 (410) 403-5447

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

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
46 services39 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54311 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385
DME-Orthotic Devices · category DF010N
3 suppliers28 claims590 services$3.99 avg. paid by Medicare
Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each A4425
DME-Orthotic Devices · category DF010N
2 suppliers11 claims340 services$1.91 avg. paid by Medicare
Ostomy pouch, drainable, with extended wear barrier attached, with filter, (1 piece), each A5056
DME-Orthotic Devices · category DF010N
2 suppliers12 claims150 services$4.22 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

AMRITHA CHANDRAHASA KARKERA M.D.
Internal Medicine (Hematology & Oncology)
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-8000
MRS. AMY MACH SCHOENEBECK MS, CGC
Genetic Counselor, MS
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-4180
GERALD WILLIAM ECKARDT MD
Neurological Surgery
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-8350
ELLEN LINSKENS PT
Physical Therapist
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-8000
KATIE LYNN LLOYD DO
Emergency Medicine
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-4060
BRADLEY JAY FEDDERLY MD
Hospitalist
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-8100
EDWARD C VOGEL MD
Emergency Medicine
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-4060
JOHN JEROME KLINKHAMMER CRNA
Nurse Anesthetist, Certified Registered
2845 GREENBRIER RD
GREEN BAY, WI 54311
Brown County (920) 288-3388

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 Carrie Materniak's NPI number?

The NPI number for Carrie Materniak is 1568921641. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Where is Carrie Materniak located?

Carrie Materniak practices at 2845 Greenbrier Rd, Green Bay, WI 54311. The listed phone number is (920) 288-8250.

What is Carrie Materniak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Carrie Materniak enrolled in Medicare?

Yes. Carrie Materniak is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Carrie Materniak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carrie Materniak reassigns Medicare benefits to 5 organizations: Oak Medical Sc (Waukesha, WI), Maple Medical Sc (Waukesha, WI), Openloop Healthcare Partners Wisconsin, Sc (Madison, WI), Allina Health System (Hastings, MN) and Virtualcare Medical Group PA (Gaithersburg, MD). 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 Carrie Materniak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carrie Materniak accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Nebraska and 8 other insurers list Carrie Materniak 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 Carrie Materniak was last updated on October 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.