DR. THOMAS CHRISTIAN LEECE MD
NPI 1497987168
Internal Medicine in La Crosse, WI
About Dr. Thomas Christian Leece Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS CHRISTIAN LEECE MD (NPI 1497987168) is an individual internal medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (65155) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of University Of Wisconsin School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Thomas Christian Leece Md 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 Thomas Leece reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 928 clinicians in this Medicare group
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 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 5
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Gundersen Lutheran Medical Center
Acute Care Hospitals · La Crosse, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
LA CROSSE, WI 54601
LA CROSSE, WI 54601
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 Thomas Leece's NPI number?
The NPI number for Thomas Leece is 1497987168. It was assigned to this individual provider in the NPPES registry on August 14, 2009.
Where is Thomas Leece located?
Thomas Leece practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.
What is Thomas Leece's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Thomas Leece enrolled in Medicare?
Yes. Thomas Leece 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 Thomas Leece's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Leece reassigns Medicare benefits to 2 organizations: Gundersen Clinic Ltd (La Crosse, WI) and Gundersen Lutheran Medical Center, Inc (La Crosse, 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 Thomas Leece's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Leece accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and Quartz list Thomas Leece 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 Thomas Leece affiliated with any hospitals?
According to CMS data, Thomas Leece is affiliated with Gundersen Lutheran Medical Center.
When was this NPI record last updated?
The NPPES record for Thomas Leece was last updated on August 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Thomas Christian Leece, MD · NPI 1497987168
Internal Medicine physician in La Crosse, Wisconsin. Individual provider, active in the CMS NPPES registry since August 14, 2009.
## Identity
- **NPI:** 1497987168 (Entity type: Individual)
- **Enumerated:** August 14, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 65155 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1836 SOUTH AVE, La Crosse, WI 54601-5429
- **Phone:** (608) 782-7300
## 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): Gundersen Clinic Ltd (NPI 1851343115, La Crosse, WI); Gundersen Lutheran Medical Center, Inc (NPI 1619210895, La Crosse, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** August 10, 2016
- **Other identifiers:** Medicaid 201079700 (IN); Medicare PIN P01088396 (IN); Medicare PIN M400072652 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1497987168) · Data from the CMS NPPES public registry.