TIMOTHY JOHN LENZ
NPI 1659514883
Emergency Medicine in Elkhorn, WI
About Timothy John Lenz NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY JOHN LENZ (NPI 1659514883) is an individual emergency medicine provider in Elkhorn, Wisconsin, licensed in Wisconsin (60730) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Community Memorial Hospital, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 6
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
Timothy John Lenz 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
2Medicare enrollment records show Timothy Lenz reassigns Medicare billing to 2 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
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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 4
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Community Memorial Hospital
Acute Care Hospitals · Menomonee Falls, WIFroedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIFroedtert Community Hospital
Acute Care Hospitals · New Berlin, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53121 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.
ELKHORN, WI 53121
ELKHORN, WI 53121
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 Timothy Lenz's NPI number?
The NPI number for Timothy Lenz is 1659514883. It was assigned to this individual provider in the NPPES registry on April 17, 2009.
Where is Timothy Lenz located?
Timothy Lenz practices at W3985 County Road Nn, Elkhorn, WI 53121. The listed phone number is (262) 741-2000.
What is Timothy Lenz's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Timothy Lenz enrolled in Medicare?
Yes. Timothy Lenz 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 Timothy Lenz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Lenz reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, 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 Timothy Lenz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Lenz accept?
Health plans from Anthem Blue Cross and Blue Shield and CareSource (Common Ground Healthcare) list Timothy Lenz 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 Timothy Lenz affiliated with any hospitals?
According to CMS data, Timothy Lenz is affiliated with Community Memorial Hospital, Froedtert Memorial Lutheran Hospital and Froedtert Community Hospital.
When was this NPI record last updated?
The NPPES record for Timothy Lenz was last updated on October 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.
# Timothy John Lenz · NPI 1659514883
Emergency Medicine physician in Elkhorn, Wisconsin. Individual provider, active in the CMS NPPES registry since April 17, 2009.
## Identity
- **NPI:** 1659514883 (Entity type: Individual)
- **Enumerated:** April 17, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 60730 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** W3985 COUNTY ROAD NN, Elkhorn, WI 53121-4337
- **Phone:** (262) 741-2000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** October 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659514883) · Data from the CMS NPPES public registry.