JOHN T PIOTROWSKI M.D.
NPI 1437197035
Emergency Medicine in Milwaukee, WI
About John T Piotrowski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN T PIOTROWSKI M.D. (NPI 1437197035) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (44921-020) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John T Piotrowski M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Piotrowski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pleasant Prairie, WI 53158
- Reassigned Medicare billing, Wisconsin enrollment
- 104 clinicians in this Medicare group
Libertyville, IL 60048
- Reassigned Medicare billing, Illinois enrollment
- 982 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 2
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 53202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 John Piotrowski's NPI number?
The NPI number for John Piotrowski is 1437197035. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is John Piotrowski located?
John Piotrowski practices at 111 E Wisconsin Ave, Milwaukee, WI 53202. The listed phone number is (414) 290-6720.
What is John Piotrowski's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Piotrowski enrolled in Medicare?
Yes. John Piotrowski is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Piotrowski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Piotrowski reassigns Medicare benefits to 2 organizations: Vituity-Wisconsin Em Sc (Pleasant Prairie, WI) and Cepamerica Illinois LLP (Libertyville, IL). 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 John Piotrowski'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 John Piotrowski was last updated on December 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# John T Piotrowski, M.D. · NPI 1437197035
Emergency Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since June 4, 2006.
## Identity
- **NPI:** 1437197035 (Entity type: Individual)
- **Enumerated:** June 4, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 44921-020 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 E WISCONSIN AVE, Milwaukee, WI 53202-4815
- **Phone:** (414) 290-6720 · **Fax:** (414) 290-6755
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Vituity-Wisconsin Em Sc (NPI 1326730664, Pleasant Prairie, WI); Cepamerica Illinois LLP (NPI 1740906577, Libertyville, IL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 7, 2021
- **Other identifiers:** Other 930062810 (IL); Medicaid 036094382 (IL); Medicaid 34583200 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1437197035) · Data from the CMS NPPES public registry.