Quick answers
- Which hospitals does Don R. Duff work at?
- Medicare's official clinician data lists Don R. Duff at 4 hospitals: Baptist Health Louisville, Norton Hospitals, Inc, Norton-King's Daughters' Health 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 Don R. Duff see patients?
- Medicare's clinician data lists 1 practice location in Louisville, KY. Call before your visit to confirm the address.
- What is Don R. Duff's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Don R. Duff accept Medicare assignment?
- Yes. Medicare's clinician data says Don R. 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.
- What is the phone number for Don R. Duff?
- (502) 583-1799, as listed in official Medicare / NPI Registry data.
- What is Don R. Duff's NPI number?
- 1154325900. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Don R. Duff works
Medicare's Facility Affiliation Data lists Don R. 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 LouisvilleLouisville, KY · Acute Care Hospital · CCN 180130
- Norton Hospitals, IncLouisville, KY · Acute Care Hospital · CCN 180088
- Norton-King's Daughters' HealthMadison, IN · Acute Care Hospital · CCN 150069
- UOFL HEALTH - JEWISH HOSPITAL and Mary & Elizabeth HospitalLouisville, KY · Acute Care Hospital · CCN 180040
Practice locations
Addresses where Don R. Duff is enrolled with Medicare (CMS data updated 2026-10-02).
- 721 S Preston StLouisville, KY 40203 (502) 583‑1799
Group practices
Medicare enrollment lists Don R. Duff as a member of this group (CMS data updated 2026-10-02).
- Bluegrass Kidney Consultants PSC19 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Louisville
Clinicians with the same Medicare primary specialty in Louisville, KY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Louisville School Of Medicine |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154325900 |
| 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