LYNSEY P RETZLAFF MSW, LCSW, SAC-IT
NPI 1023760543
Social Worker - Clinical in Waukesha, WI
About Lynsey P Retzlaff Msw, Lcsw, Sac-it NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LYNSEY P RETZLAFF MSW, LCSW, SAC-IT (NPI 1023760543) is an individual clinical provider in Waukesha, Wisconsin, licensed in Wisconsin (9335-123) and active in the NPI registry since January 2022. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 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)
Lynsey P Retzlaff Msw, Lcsw, Sac-it is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Lynsey Retzlaff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brookfield, WI 53005
- Reassigned Medicare billing, Wisconsin enrollment
- 556 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 53186 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 Lynsey Retzlaff's NPI number?
The NPI number for Lynsey Retzlaff is 1023760543. It was assigned to this individual provider in the NPPES registry on January 25, 2022.
Where is Lynsey Retzlaff located?
Lynsey Retzlaff practices at 741 N Grand Ave Ste 302, Waukesha, WI 53186. The listed phone number is (262) 789-1191.
What is Lynsey Retzlaff's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Lynsey Retzlaff enrolled in Medicare?
Yes. Lynsey Retzlaff is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Lynsey Retzlaff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lynsey Retzlaff reassigns Medicare benefits to Cornerstone Counseling Services, Inc (Brookfield, 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 Lynsey Retzlaff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lynsey Retzlaff accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Dean Health Plan, HealthPartners and Network Health and 2 other insurers list Lynsey Retzlaff 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 Lynsey Retzlaff was last updated on February 25, 2022. 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.
# Lynsey P Retzlaff, MSW, LCSW, SAC-IT · NPI 1023760543
Clinical provider in Waukesha, Wisconsin. Individual provider, active in the CMS NPPES registry since January 25, 2022.
## Identity
- **NPI:** 1023760543 (Entity type: Individual)
- **Enumerated:** January 25, 2022
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 9335-123 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 741 N GRAND AVE STE 302, Waukesha, WI 53186-4841
- **Phone:** (262) 789-1191
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Cornerstone Counseling Services, Inc (NPI 1033127246, Brookfield, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1023760543) · Data from the CMS NPPES public registry.