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PROVIDER PROFILE · NPI 1891709242

Winfred WilliamsMD

NephrologyBoston, MAI
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.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
699
Beneficiaries
—
Total drug cost
$63K
Distinct drugs
19
Brand share
5.3%
Top prescribed drugs
Prednisone172 claims
Tacrolimus63 claims
Amlodipine Besylate62 claims
Mycophenolate Mofetil53 claims
Furosemide48 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
127
Unique beneficiaries
—
Total services
203
Distinct HCPCS
5
Medicare payment
$16K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 270 Nephrology providers in MA — bottom quintile (cohort median 904).
REFERRAL NETWORK

Where Winfred Williams'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
THE GENERAL HOSPITAL CORPORATION2192,691
Eliot Heher
Nephrology · Boston, MA
48426
Quest Diagnostics Massachusetts Llc
Clinical Laboratory · Marlborough, MA
45530
Tatsuo Kawai
General Surgery · Boston, MA
38267
Parsia Vagefi
General Surgery · Boston, MA
31124
David Wojciechowski
Nephrology · Dallas, TX
27134
Thomas Ptak
Diagnostic Radiology · Worcester, MA
2056
PATTI, JOHN2051
Anand Prabhakar
Diagnostic Radiology · Boston, MA
2044
Matthew Gilman
Diagnostic Radiology · Boston, MA
1967
John Godine
Endocrinology · Boston, MA
19133
Ajay Singh
Diagnostic Radiology · Boston, MA
1974
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
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.