STEFAN V ZACHARY DO MS
NPI 1104881895
Orthopaedic Surgery - Hand Surgery in Madison, WI
About Stefan V Zachary Do Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEFAN V ZACHARY DO MS (NPI 1104881895) is an individual hand surgery provider in Madison, Wisconsin, licensed in Wisconsin (37389-21) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 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 (PECOS)
Stefan V Zachary Do Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stefan Zachary reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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 11
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53792 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.
MADISON, WI 53792
MADISON, WI 53792
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 Stefan Zachary's NPI number?
The NPI number for Stefan Zachary is 1104881895. It was assigned to this individual provider in the NPPES registry on April 18, 2006.
Where is Stefan Zachary located?
Stefan Zachary practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-7540.
What is Stefan Zachary's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.
Is Stefan Zachary enrolled in Medicare?
Yes. Stefan Zachary is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stefan Zachary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stefan Zachary reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). The 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 Stefan Zachary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stefan Zachary accept?
Health plans from Aspirus Health Plan and Group Health Cooperative-SCW list Stefan Zachary 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 Stefan Zachary was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.