JOSEPH HERZOG M.D.
NPI 1508859901
Obstetrics & Gynecology in Brookfield, WI
About Joseph Herzog M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH HERZOG M.D. (NPI 1508859901) is an individual obstetrics & gynecology provider in Brookfield, Wisconsin, licensed in Wisconsin (32304) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joseph Herzog M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Joseph Herzog 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53045 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 Joseph Herzog's NPI number?
The NPI number for Joseph Herzog is 1508859901. It was assigned to this individual provider in the NPPES registry on August 31, 2005.
Where is Joseph Herzog located?
Joseph Herzog practices at 17280 W North Ave Suite 200, Brookfield, WI 53045. The listed phone number is (262) 754-8000.
What is Joseph Herzog's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Joseph Herzog enrolled in Medicare?
Yes. Joseph Herzog is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Joseph Herzog's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Herzog 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 Joseph Herzog's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joseph Herzog was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.