DARCY L LESNIAK MD
NPI 1104859198
Pediatrics in Germantown, WI
About Darcy L Lesniak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DARCY L LESNIAK MD (NPI 1104859198) is an individual pediatrics provider in Germantown, Wisconsin, licensed in Wisconsin (44442) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
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)
Darcy L Lesniak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Darcy Lesniak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mequon, WI 53097
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 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 53022 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 17
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 Darcy Lesniak's NPI number?
The NPI number for Darcy Lesniak is 1104859198. It was assigned to this individual provider in the NPPES registry on July 10, 2006. The provider is also known as Darcy L Fechner MD.
Where is Darcy Lesniak located?
Darcy Lesniak practices at N112w15415 Mequon Rd, Germantown, WI 53022. The listed phone number is (262) 250-7800.
What is Darcy Lesniak's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Darcy Lesniak enrolled in Medicare?
Yes. Darcy Lesniak is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Darcy Lesniak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Darcy Lesniak reassigns Medicare benefits to Columbia St. Mary's Hospital Milwaukee, Inc (Mequon, 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 Darcy Lesniak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Darcy Lesniak accept?
Health plans from Anthem Blue Cross and Blue Shield and Network Health list Darcy Lesniak 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 Darcy Lesniak was last updated on June 12, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Darcy L Lesniak, MD · NPI 1104859198
Pediatrics physician in Germantown, Wisconsin. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1104859198 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 44442 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** N112W15415 MEQUON RD, Germantown, WI 53022-3410
- **Phone:** (262) 250-7800
## 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:** Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1710928221, Mequon, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 12, 2012
- **Other identifiers:** Medicare UPIN H83834 (WI); Medicaid 34375400 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1104859198) · Data from the CMS NPPES public registry.