Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

The Duluth Clinic, Ltd

Organization Nephrology Physician · NPI 1083889554

The Duluth Clinic, Ltd is a Nephrology Physician in Superior, Wisconsin. Registered with an NPI since 2008.

In the registry since
2008
Specialties on file
2
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

3500 Tower Ave
Superior, WI 54880-5335
Phone: (715) 395-2199
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

End-Stage Renal Disease (ESRD) Treatment Clinic/Center (primary) Taxonomy 261QE0700X
Nephrology Physician Taxonomy 207RN0300X

Record details

NPI number1083889554
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationSt Mary's Duluth Clinic Health System
Authorized official John Smylie — Cao · (218) 786-2656
Other names Duluth Clinic At Fresenius Superior Dialysis Unit
NPI enumeratedApril 25, 2008
Last updated in NPPESApril 9, 2010
Mailing address3500 Tower Ave, Superior, WI 54880-5335