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PROVIDER PROFILE · NPI 1366446213

William DuffMD

NephrologyLouisville, KYI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,213
Unique beneficiaries
—
Total services
2,518
Distinct HCPCS
12
Medicare payment
$156K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 122 Nephrology providers in KY — top quintile (cohort median 1,260).
PRESCRIBING · PART D · 2024
Total Rx claims
1,058
Beneficiaries
—
Total drug cost
$59K
Distinct drugs
27
Brand share
5.9%
Top prescribed drugs
Calcitriol138 claims
Losartan Potassium99 claims
Amlodipine Besylate97 claims
Hydralazine Hcl85 claims
Allopurinol83 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$2K
Payment records
75
By payment type
Food and Beverage$2K
Education$30
REFERRAL NETWORK

Where William Duff's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 95 inbound referrers · 178 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
JEWISH HOSPITAL & ST. MARY'S HEALTHCARE, INC.3261,283
Louisville Jefferson County Metro Government
Ambulance Service Provider · Louisville, KY
137346
Sunny Joseph
Cardiology · Louisville, KY
98294
LEE, ROBERT80200
Spectra East, Inc.
Clinical Laboratory · Rockleigh, NJ
791,697
Preeti Attavar
Cardiology · Louisville, KY
76234
Arun Ummat
Interventional Cardiology · Louisville, KY
72242
BIO-MEDICAL APPLICATIONS OF KENTUCKY, INC.641,029
YELLOW ENTERPRISE SYSTEMS, LLC63279
Frank Lee
Diagnostic Radiology · Louisville, KY
61154
BAPTIST HEALTHCARE SYSTEM INC.60210
KOCH, JOHN53124
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
JEWISH HOSPITAL & ST. MARY'S HEALTHCARE, INC.186770
Laboratory Corporation Of America Holdings
Clinical Laboratory · Dublin, OH
138245
Stephen Keiran
Nephrology · Louisville, KY
96306
YELLOW ENTERPRISE SYSTEMS, LLC92361
NORTON HOSPITALS, INC89376
Preeti Attavar
Cardiology · Louisville, KY
87263
Louisville Jefferson County Metro Government
Ambulance Service Provider · Louisville, KY
83223
Quest Diagnostics Llc Il
Clinical Laboratory · Wood Dale, IL
81220
Spectra East, Inc.
Clinical Laboratory · Rockleigh, NJ
801,737
LEE, ROBERT67183
Lori Haycraft
Diagnostic Radiology · Nashville, TN
65152
Sunny Joseph
Cardiology · Louisville, KY
63132
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.