JONATHAN KATZ MD
NPI 1144806753
Family Medicine in Mequon, WI
About Jonathan Katz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN KATZ MD (NPI 1144806753) is an individual family medicine provider in Mequon, Wisconsin, licensed in Wisconsin (83237) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Center, and maintains a secondary practice location in Mishawaka.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Jonathan Katz 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 Reassignment
Medicare enrollment records show Jonathan Katz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 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 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora Medical Center
Acute Care Hospitals · Grafton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53092 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 Jonathan Katz's NPI number?
The NPI number for Jonathan Katz is 1144806753. It was assigned to this individual provider in the NPPES registry on March 23, 2021.
Where is Jonathan Katz located?
Jonathan Katz practices at 6425 W Mequon Rd, Mequon, WI 53092. The listed phone number is (262) 242-0051.
What is Jonathan Katz's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Jonathan Katz enrolled in Medicare?
Yes. Jonathan Katz 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 organization bills Medicare for Jonathan Katz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Katz reassigns Medicare benefits to Aurora Advanced Healthcare, Inc. (Milwaukee, 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 Jonathan Katz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jonathan Katz accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 2 other insurers list Jonathan Katz 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.
Is Jonathan Katz affiliated with any hospitals?
According to CMS data, Jonathan Katz is affiliated with Aurora Medical Center.
When was this NPI record last updated?
The NPPES record for Jonathan Katz was last updated on November 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Jonathan Katz, MD · NPI 1144806753
Family Medicine physician in Mequon, Wisconsin. Individual provider, active in the CMS NPPES registry since March 23, 2021.
## Identity
- **NPI:** 1144806753 (Entity type: Individual)
- **Enumerated:** March 23, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 83237 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6425 W MEQUON RD, Mequon, WI 53092-1862
- **Phone:** (262) 242-0051 · **Fax:** (262) 236-8780
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Aurora Advanced Healthcare, Inc. (NPI 1265629133, Milwaukee, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2021
## Record status
- **NPPES last updated:** November 18, 2024
- **Other identifiers:** Medicaid 391595302 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1144806753) · Data from the CMS NPPES public registry.