MARK A GARDON MD
NPI 1366470544
Neurological Surgery in Green Bay, WI
About Mark A Gardon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK A GARDON MD (NPI 1366470544) is an individual neurological surgery provider in Green Bay, Wisconsin, licensed in Wisconsin (32288) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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)
Mark A Gardon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Gardon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Green Bay, WI 54311
- Reassigned Medicare billing, Wisconsin enrollment
- 275 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 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.
Other Providers at the Same Location NPPES 9
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 Mark Gardon's NPI number?
The NPI number for Mark Gardon is 1366470544. It was assigned to this individual provider in the NPPES registry on June 28, 2006.
Where is Mark Gardon located?
Mark Gardon practices at 2845 Greenbrier Rd Ste 330, Green Bay, WI 54311. The listed phone number is (920) 288-8350.
What is Mark Gardon's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Mark Gardon enrolled in Medicare?
Yes. Mark Gardon is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Gardon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gardon reassigns Medicare benefits to Baycare Clinic LLP (Green Bay, 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 Mark Gardon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Gardon accept?
Health plans from Arkansas Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Health Advantage and Octave list Mark Gardon 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 Mark Gardon was last updated on May 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.