TRACY P LEMMER FNP
NPI 1851774772
Nurse Practitioner in Milwaukee, WI
About Tracy P Lemmer Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TRACY P LEMMER FNP (NPI 1851774772) is an individual nurse practitioner in Milwaukee, Wisconsin, licensed in Wisconsin (6448) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Froedtert Memorial Lutheran Hospital, and maintains a secondary practice location in Milwaukee.
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
Tracy P Lemmer Fnp 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 Reassignments
4Medicare enrollment records show Tracy Lemmer reassigns Medicare billing to 4 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
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Saint Francis, WI 53235
- Reassigned Medicare billing, Wisconsin enrollment
- 960 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Froedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53216 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 13
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 Tracy Lemmer's NPI number?
The NPI number for Tracy Lemmer is 1851774772. It was assigned to this individual provider in the NPPES registry on July 9, 2015.
Where is Tracy Lemmer located?
Tracy Lemmer practices at 5818 W Capitol Dr, Milwaukee, WI 53216. The listed phone number is (414) 449-2114.
What is Tracy Lemmer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Tracy Lemmer enrolled in Medicare?
Yes. Tracy Lemmer 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 organizations bill Medicare for Tracy Lemmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tracy Lemmer reassigns Medicare benefits to 4 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Aurora Advanced Healthcare, Inc. (Milwaukee, WI), Aurora Medical Group, Inc. (West Allis, WI) and Lakeshore Medical Clinic, LLC (Saint Francis, 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 Tracy Lemmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tracy Lemmer accept?
Health plans from Aspirus Health Plan, CareSource (Common Ground Healthcare) and HealthPartners list Tracy Lemmer 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 Tracy Lemmer affiliated with any hospitals?
According to CMS data, Tracy Lemmer is affiliated with Froedtert Memorial Lutheran Hospital.
When was this NPI record last updated?
The NPPES record for Tracy Lemmer was last updated on December 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Tracy P Lemmer, FNP · NPI 1851774772
Nurse Practitioner physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since July 9, 2015.
## Identity
- **NPI:** 1851774772 (Entity type: Individual)
- **Enumerated:** July 9, 2015
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 6448 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 5818 W CAPITOL DR, Milwaukee, WI 53216-2247
- **Phone:** (414) 449-2114 · **Fax:** (414) 449-9299
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Aurora Advanced Healthcare, Inc. (NPI 1265629133, Milwaukee, WI); Aurora Medical Group, Inc. (NPI 1457592735, West Allis, WI); Lakeshore Medical Clinic, LLC (NPI 1003861188, Saint Francis, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** December 1, 2025
- **Other identifiers:** Medicaid 100046472 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1851774772) · Data from the CMS NPPES public registry.