GRANT W MALLORY MD
NPI 1568690477
Neurological Surgery in Eau Claire, WI
About Grant W Mallory Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRANT W MALLORY MD (NPI 1568690477) is an individual neurological surgery provider in Eau Claire, Wisconsin, licensed in Wisconsin (81713) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System-franciscan Medical Center Inc, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 2
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
Grant W Mallory 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 Reassignments
5Medicare enrollment records show Grant Mallory reassigns Medicare billing to 5 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
- 1,248 clinicians in this Medicare group
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,003 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 18 clinicians in this Medicare group
Corpus Christi, TX 78404
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Corpus Christi, TX 78404
- Reassigned Medicare billing, Texas enrollment
- 130 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Health System-Franciscan Medical Center Inc
Acute Care Hospitals · La Crosse, WIMayo Clinic Health System Eau Claire Hospital
Acute Care Hospitals · Eau Claire, WIMayo Clinic Hlth Systm Franciscan Hlthcare Sparta
Critical Access Hospitals · Sparta, 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.
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.
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 Grant Mallory's NPI number?
The NPI number for Grant Mallory is 1568690477. It was assigned to this individual provider in the NPPES registry on June 30, 2009.
Where is Grant Mallory located?
Grant Mallory practices at 1400 Bellinger St, Eau Claire, WI 54703. The listed phone number is (715) 838-5222.
What is Grant Mallory's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Grant Mallory enrolled in Medicare?
Yes. Grant Mallory 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 Grant Mallory's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Mallory reassigns Medicare benefits to 5 organizations: Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Eau Claire, WI), Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (La Crosse, WI), Neurosurgical Associates Of San Antonio, P.A. (San Antonio, TX), Neurosurgical Affiliates Of Texas, PA (Corpus Christi, TX) and Acute Care Surgical Affiliates Of Texas PA (Corpus Christi, TX). 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 Grant Mallory's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grant Mallory accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Security Health Plan and Sendero Health Plans, Local Nonprofit list Grant Mallory 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 Grant Mallory affiliated with any hospitals?
According to CMS data, Grant Mallory is affiliated with Mayo Clinic Health System-Franciscan Medical Center Inc, Mayo Clinic Health System Eau Claire Hospital, Mayo Clinic Hlth Systm Franciscan Hlthcare Sparta, Mayo Clinic Health System-Northland and Mayo Clinic Health System-Red Cedar Inc.
When was this NPI record last updated?
The NPPES record for Grant Mallory was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Grant W Mallory, MD · NPI 1568690477
Neurological Surgery physician in Eau Claire, Wisconsin. Individual provider, active in the CMS NPPES registry since June 30, 2009.
## Identity
- **NPI:** 1568690477 (Entity type: Individual)
- **Enumerated:** June 30, 2009
- **Primary specialty:** Neurological Surgery · taxonomy 207T00000X
- **State license:** 81713 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1400 BELLINGER ST, Eau Claire, WI 54703-5222
- **Phone:** (715) 838-5222
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (NPI 1235588831, Eau Claire, WI); Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (NPI 1629056049, La Crosse, WI); Neurosurgical Associates Of San Antonio, P.A. (NPI 1447295753, San Antonio, TX); Neurosurgical Affiliates Of Texas, PA (NPI 1437935137, Corpus Christi, TX); Acute Care Surgical Affiliates Of Texas PA (NPI 1407322415, Corpus Christi, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** June 3, 2025
- **Other identifiers:** Medicaid ENROLLED (MN); Medicaid ENROLLED (IA)
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Source: [NPI Profile](https://npiprofile.com/npi/1568690477) · Data from the CMS NPPES public registry.