DULUTH CLINIC AT FRESENIUS SUPERIOR DIALYSIS UNIT
NPI 1083889554
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in Superior, WI
About Duluth Clinic At Fresenius Superior Dialysis Unit NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DULUTH CLINIC AT FRESENIUS SUPERIOR DIALYSIS UNIT (NPI 1083889554) is a healthcare organization registered as an end-stage renal disease (esrd) treatment in Superior, Wisconsin and active in the NPI registry since April 2008. The organization lists John Smylie, Cao, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Duluth Clinic At Fresenius Superior Dialysis Unit is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
174Medicare enrollment records show 174 clinicians reassign Medicare billing to Duluth Clinic At Fresenius Superior Dialysis Unit, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 131 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 29
Nearest to this location (20)
See all 174Duluth, MN 55805
Duluth, MN 55805
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 The Duluth Clinic, Ltd's NPI number?
The NPI number for The Duluth Clinic, Ltd is 1083889554. It was assigned to this organization in the NPPES registry on April 25, 2008. The provider is doing business as Duluth Clinic At Fresenius Superior Dialysis Unit.
Where is The Duluth Clinic, Ltd located?
The Duluth Clinic, Ltd is located at 3500 Tower Ave, Superior, WI 54880. The listed phone number is (715) 395-2199.
What is The Duluth Clinic, Ltd's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in End-Stage Renal Disease (ESRD) Treatment, with taxonomy code 261QE0700X.
Is The Duluth Clinic, Ltd enrolled in Medicare?
Yes. The Duluth Clinic, Ltd is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through The Duluth Clinic, Ltd?
According to the CMS Revalidation Reassignment List (October 2026 release), 174 clinicians in 29 Medicare specialties reassign their Medicare billing to The Duluth Clinic, Ltd. A 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 the clinician's services. The largest specialties are Nurse Practitioner (40), Certified Registered Nurse Anesthetist (CRNA) (29) and Anesthesiology (24). Of these, 1 practice at this address and 131 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for The Duluth Clinic, Ltd was last updated on April 9, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Duluth Clinic At Fresenius Superior Dialysis Unit · NPI 1083889554
End-Stage Renal Disease (ESRD) Treatment organization in Superior, Wisconsin. Organization record, active in the CMS NPPES registry since April 25, 2008.
## Identity
- **NPI:** 1083889554 (Entity type: Organization)
- **Enumerated:** April 25, 2008
- **Primary specialty:** Clinic/Center - End-Stage Renal Disease (ESRD) Treatment · taxonomy 261QE0700X
- **Legal business name:** The Duluth Clinic, Ltd
- **Organization subpart:** Yes (part of St. Mary's Duluth Clinic Health System)
- **Authorized official:** John Smylie, CAO
## Practice location
- **Address:** 3500 TOWER AVE, Superior, WI 54880-5335
- **Phone:** (715) 395-2199
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 174 clinicians in 29 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (40), Certified Registered Nurse Anesthetist (CRNA) (29), Anesthesiology (24); 1 practice at this address and 131 within 10 miles; [full list](https://npiprofile.com/npi/1083889554/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 9, 2010
- **Other identifiers:** Medicare PIN 18015 (WI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1083889554) · Data from the CMS NPPES public registry.