JONATHAN J UY MD
NPI 1467434985
Radiology - Diagnostic Radiology in La Crosse, WI
About Jonathan J Uy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN J UY MD (NPI 1467434985) is an individual diagnostic radiology provider in La Crosse, Wisconsin, licensed in Wisconsin (37880) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System-franciscan Medical Center Inc, and maintains a secondary practice location in La Crosse.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Jonathan J Uy 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
7Medicare enrollment records show Jonathan Uy reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Crosse, WI 54601
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- Also billed through NPI 1841278637 (Wisconsin)
- 330 clinicians in this Medicare group
Osseo, WI 54758
- Reassigned Medicare billing, Wisconsin enrollment
- 1,248 clinicians in this Medicare group
Lake City, MN 55041
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 819 clinicians in this Medicare group
Red Wing, MN 55066
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 1,571 clinicians in this Medicare group
Waseca, MN 56093
- Reassigned Medicare billing, Wisconsin enrollment
- 45 clinicians in this Medicare group
Fairmont, MN 56031
- Reassigned Medicare billing, Wisconsin enrollment
- 35 clinicians in this Medicare group
Saint James, MN 56081
- Reassigned Medicare billing, Wisconsin enrollment
- 34 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 43
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Health System-Franciscan Medical Center Inc
Acute Care Hospitals · La Crosse, WIMayo Clinic Health System Eau Claire Hospital
Acute Care Hospitals · Eau Claire, WIMayo Clinic Hlth Systm Franciscan Hlthcare Sparta
Critical Access Hospitals · Sparta, WITomah Memorial Hospital
Critical Access Hospitals · Tomah, WIBlack River Memorial Hospital
Critical Access Hospitals · Black River Falls, 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.
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
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 Jonathan Uy's NPI number?
The NPI number for Jonathan Uy is 1467434985. It was assigned to this individual provider in the NPPES registry on November 18, 2005.
Where is Jonathan Uy located?
Jonathan Uy practices at 800 West Ave S, La Crosse, WI 54601. The listed phone number is (608) 785-0940.
What is Jonathan Uy's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Jonathan Uy enrolled in Medicare?
Yes. Jonathan Uy 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 Jonathan Uy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Uy reassigns Medicare benefits to 7 organizations: Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (La Crosse, WI), Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Osseo, WI), Mayo Clinic Health System-Lake City (Lake City, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Mayo Clinic Health System-Southwest Minnesota Region (Waseca, MN) and 2 more organizations, listed in the Medicare section above. 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 Jonathan Uy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jonathan Uy affiliated with any hospitals?
According to CMS data, Jonathan Uy is affiliated with Mayo Clinic Health System-Franciscan Medical Center Inc, Mayo Clinic Health System Eau Claire Hospital, Mayo Clinic Hlth Systm Franciscan Hlthcare Sparta, Tomah Memorial Hospital and Black River Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jonathan Uy was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.