Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. William Andre Duff, MD

Individual provider Nephrology Physician · NPI 1366446213

Dr. William Andre Duff, MD practises Nephrology in Louisville, Kentucky. Graduated from University of Louisville School of Medicine in 1990, 36 years ago. Practices with Nephrology Associates of Kentuckiana PSC, a 38-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Kentucky.

Years since qualifying
36
Trained at
University of Louisville School of Medicine
Licensed in
KY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

6400 Dutchmans Pkwy Ste 250
Louisville, KY 40205-3340 Not confirmed with CMS for 19 years — call before visiting
Phone: (502) 587-9660
Fax: (502) 540-5615
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 29503 (KY)

Record details

NPI number1366446213
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2005
Last updated in NPPESAugust 29, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Nephrology Associates Of Kentuckiana Psc — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients662
Services billed 2,575 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,097 42 payments · a meal or drink at a meeting or visit, not a fee
Education $51 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Norton Hospitals, Inc Hospital · Louisville, KY
  • University Of Louisville Hospital Hospital · Louisville, KY · listed as University of Louisville
  • Fmc - Southwest Dialysis facility · Valley Station, KY · listed as Bio-Medical Applications of Kentucky, Inc
  • Baptist Health Hardin Hospital · Elizabethtown, KY
  • Baptist Health Louisville Hospital · Louisville, KY
  • UOFL HEALTH - JEWISH HOSPITAL and Mary & Elizabeth Hospital Hospital · Louisville, KY

Colleagues at Nephrology Associates of Kentuckiana PSC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 38 clinicians in the practice; 12 are shown here.

Other providers in Louisville