GARY W. STEWART M.D.
NPI 1003848458
Surgery in Menomonee Falls, WI
About Gary W. Stewart M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GARY W. STEWART M.D. (NPI 1003848458) is an individual surgery provider in Menomonee Falls, Wisconsin, licensed in Wisconsin (24267) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Hartford, and is a graduate of University Of Texas Medical School At Houston (1979).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Gary W. Stewart M.d. 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
2Medicare enrollment records show Gary Stewart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 clinicians in this Medicare group
West Allis, WI 53227
- 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53051 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.
MENOMONEE FALLS, WI 53051
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 Gary Stewart's NPI number?
The NPI number for Gary Stewart is 1003848458. It was assigned to this individual provider in the NPPES registry on July 7, 2006.
Where is Gary Stewart located?
Gary Stewart practices at N84w16889 Menomonee Ave, Menomonee Falls, WI 53051. The listed phone number is (262) 251-7500.
What is Gary Stewart's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Gary Stewart enrolled in Medicare?
Yes. Gary Stewart 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 Gary Stewart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Stewart reassigns Medicare benefits to 2 organizations: Aurora Advanced Healthcare, Inc. (Milwaukee, WI) and Aurora Medical Group, Inc. (West Allis, 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 Gary Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gary Stewart accept?
Health plans from Aspirus Health Plan and CareSource (Common Ground Healthcare) list Gary Stewart 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 Gary Stewart was last updated on June 24, 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.