Quick answers
- Which hospitals does William A. Duff work at?
- Medicare's official clinician data lists William A. Duff at 5 hospitals: Baptist Health Hardin, Baptist Health Lagrange, Baptist Health Louisville, Norton Hospitals, Inc and UOFL HEALTH - JEWISH HOSPITAL and Mary & Elizabeth Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William A. Duff see patients?
- Medicare's clinician data lists 4 practice locations, including Corydon, IN and Louisville, KY. Call before your visit to confirm the address.
- What is William A. Duff's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does William A. Duff accept Medicare assignment?
- Yes. Medicare's clinician data says William A. Duff accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does William A. Duff offer telehealth?
- Medicare's clinician data says William A. Duff offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William A. Duff?
- (812) 738-4251, as listed in official Medicare / NPI Registry data.
- What is William A. Duff's NPI number?
- 1366446213. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William A. Duff works
Medicare's Facility Affiliation Data lists William A. Duff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baptist Health HardinElizabethtown, KY · Acute Care Hospital · CCN 180012
- Baptist Health LagrangeLa Grange, KY · Acute Care Hospital · CCN 180138
- Baptist Health LouisvilleLouisville, KY · Acute Care Hospital · CCN 180130
- Norton Hospitals, IncLouisville, KY · Acute Care Hospital · CCN 180088
- UOFL HEALTH - JEWISH HOSPITAL and Mary & Elizabeth HospitalLouisville, KY · Acute Care Hospital · CCN 180040
Practice locations
Addresses where William A. Duff is enrolled with Medicare (CMS data updated 2026-10-02).
- 1263 Hospital Dr NWCorydon, IN 47112 (812) 738‑4251
- 1900 Bluegrass Ave, Suite 300Louisville, KY 40215 (502) 587‑9660
- 313 Federal NW Dr, Suite 010Corydon, IN 47112 (812) 734‑3966
- 6400 Dutchmans PkwyLouisville, KY 40205 (502) 587‑9660
Group practices
Medicare enrollment lists William A. Duff as a member of this group (CMS data updated 2026-10-02).
- Nephrology Associates of Kentuckiana PSC40 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Corydon
Clinicians with the same Medicare primary specialty in Corydon, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Louisville School Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366446213 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians