DR. HEATHER MARGARET CORK CNP
NPI 1225649890
Nurse Practitioner in Eau Claire, WI
About Dr. Heather Margaret Cork Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HEATHER MARGARET CORK CNP (NPI 1225649890) is an individual nurse practitioner in Eau Claire, Wisconsin, licensed in Wisconsin (10244) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System Eau Claire Hospital, and maintains a secondary practice location in Eau Claire.
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
Dr. Heather Margaret Cork Cnp 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 Reassignments
4Medicare enrollment records show Heather Cork reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Eau Claire, WI 54701
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 clinicians in this Medicare group
Eau Claire, WI 54701
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1154372944 (Wisconsin), NPI 1700837812 (Wisconsin), NPI 1912958026 (Wisconsin), NPI 1740239557 (Wisconsin)
- 1,248 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 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 6
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.
Mayo Clinic Health System Eau Claire Hospital
Acute Care Hospitals · Eau Claire, WIMayo Clinic Health System Chippewa Valley
Critical Access Hospitals · Bloomer, WIMayo Clinic Health System-Northland
Critical Access Hospitals · Barron, WIMayo Clinic Health System-Red Cedar Inc
Critical Access Hospitals · Menomonie, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54703 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 18
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.
EAU CLAIRE, WI 54703
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 Heather Cork's NPI number?
The NPI number for Heather Cork is 1225649890. It was assigned to this individual provider in the NPPES registry on August 16, 2020.
Where is Heather Cork located?
Heather Cork practices at 1400 Bellinger Street, Eau Claire, WI 54703. The listed phone number is (715) 838-5222.
What is Heather Cork's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Heather Cork enrolled in Medicare?
Yes. Heather Cork 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 organizations bill Medicare for Heather Cork's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heather Cork reassigns Medicare benefits to 4 organizations: Mchs Hospitals Inc (Eau Claire, WI), Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Eau Claire, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI) and Marshfield Clinic Inc (Marshfield, WI). 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 Heather Cork's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Heather Cork accept?
Health plans from Anthem Blue Cross and Blue Shield and Security Health Plan list Heather Cork 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 Heather Cork affiliated with any hospitals?
According to CMS data, Heather Cork is affiliated with Mayo Clinic Health System Eau Claire Hospital, Mayo Clinic Health System Chippewa Valley, Mayo Clinic Health System-Northland and Mayo Clinic Health System-Red Cedar Inc.
When was this NPI record last updated?
The NPPES record for Heather Cork was last updated on December 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.