MARC GUNDERSON MD
NPI 1194067561
Psychiatry & Neurology - Psychiatry in Milwaukee, WI
About Marc Gunderson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARC GUNDERSON MD (NPI 1194067561) is an individual psychiatry provider in Milwaukee, Wisconsin, licensed in Wisconsin (62813-20) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Medical College Of Wisconsin (2013).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 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
Marc Gunderson 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
2Medicare enrollment records show Marc Gunderson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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
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 53226 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.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Marc Gunderson's NPI number?
The NPI number for Marc Gunderson is 1194067561. It was assigned to this individual provider in the NPPES registry on March 22, 2013.
Where is Marc Gunderson located?
Marc Gunderson practices at 1155 N Mayfair Rd, Milwaukee, WI 53226. The listed phone number is (414) 955-5990.
What is Marc Gunderson's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Marc Gunderson enrolled in Medicare?
Yes. Marc Gunderson 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 Marc Gunderson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Gunderson reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, 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 Marc Gunderson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marc Gunderson accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and Network Health list Marc Gunderson 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 Marc Gunderson was last updated on June 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.