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THE KIDNEY SPEICALISTS OF KENTUCKIANA PLLC
NPI 1073000246
Internal Medicine - Nephrology in Louisville, KY

Active since April 13, 2018
3999 DUTCHMANS LN STE 4A, LOUISVILLE, KY 40207(502) 365-2655(502) 365-2770 Get Directions Write a Review

NPPES record last updated: June 28, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 28, 2018, Apr 13, 2018 (2 updates tracked since 2018).

About The Kidney Speicalists Of Kentuckiana Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THE KIDNEY SPEICALISTS OF KENTUCKIANA PLLC (NPI 1073000246) is a healthcare organization registered as a nephrology in Louisville, Kentucky and active in the NPI registry since April 2018. The organization lists Don R Duff, Owner, as its authorized official.

NPPES Registry Identity

NPI1073000246
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameDON R DUFF
Location Address3999 DUTCHMANS LN STE 4ALouisville, KY 40207
Mailing Address3999 Dutchmans Ln Ste 4aLouisville, KY 40207-4745 · (502) 365-2655 · Fax (502) 365-2770
Phone(502) 365-2655
Fax(502) 365-2770
Organization SubpartNo
Authorized OfficialDon R DuffOwner · (502) 365-2655
Enumeration DateApril 13, 2018
Last NPPES UpdateJune 28, 20182 updates tracked since enumeration
✔ NPI 1073000246 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedNurse PractitionerTaxonomy 363L00000X
3999 DUTCHMANS LN STE 4A, Louisville, KY 40207
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Other Names 1

Doing Business AsThe Kidney Speicalists Of Kentuckiana Pllc

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

The Kidney Speicalists Of Kentuckiana Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to The Kidney Speicalists Of Kentuckiana PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Don Duff, MD
Internal Medicine
NPI 1154325900
3999 DUTCHMANS LN STE 4A
Louisville, KY 40207
(502) 365-2655
✔ PECOS✔ Accepts MedicareSame address
Paula Elliott, APRN
Nurse Practitioner
NPI 1952411068
3999 DUTCHMANS LN STE 4A
Louisville, KY 40207
(502) 365-2655
✔ PECOS✔ Accepts MedicareSame address

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 Don R Duff's NPI number?

The NPI number for Don R Duff is 1073000246. It was assigned to this organization in the NPPES registry on April 13, 2018. The provider is doing business as The Kidney Speicalists Of Kentuckiana PLLC.

Where is Don R Duff located?

Don R Duff is located at 3999 Dutchmans Ln Ste 4A, Louisville, KY 40207. The listed phone number is (502) 365-2655.

What is Don R Duff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Don R Duff enrolled in Medicare?

Yes. Don R Duff is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Don R Duff?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Don R Duff, in Internal Medicine and Nurse Practitioner. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Don R Duff was last updated on June 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.