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PROVIDER PROFILE · NPI 1609981471

William WhittierMD

PRACTICEEDMUND J LEWIS MD & ASSOCIATESSee all providers at this practice →
NephrologyChicago, ILI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
547
Beneficiaries
—
Total drug cost
$175K
Distinct drugs
19
Brand share
17.6%
Top prescribed drugs
Valsartan65 claims
Carvedilol58 claims
Potassium Citrate56 claims
Amlodipine Besylate53 claims
Furosemide50 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
785
Unique beneficiaries
—
Total services
1,441
Distinct HCPCS
11
Medicare payment
$152K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 404 Nephrology providers in IL — above median (cohort median 1,672).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$412
Payment records
6
By payment type
Food and Beverage$412
REFERRAL NETWORK

Where William Whittier'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). 92 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Palmi Shah
Diagnostic Radiology · Chicago, IL
140618
Casey Gashti
Nephrology · Chicago, IL
123573
NPI 1194783076116389
SINSAKUL, MARVIN115408
John Meyer
Diagnostic Radiology · Chicago, IL
103346
John Hibbeln
Diagnostic Radiology · Chicago, IL
94302
Superior Air-Ground Ambulance Service, Inc
Ambulance Service Provider · Elmhurst, IL
90171
Roger Rodby
Nephrology · Chicago, IL
90284
Meri Chen
Diagnostic Radiology · Chicago, IL
87248
Stephanie Shors
Diagnostic Radiology · Chicago, IL
79192
Carol Lin
Diagnostic Radiology · Chicago, IL
77245
Roger Billhardt
Internal Medicine · Chicago, IL
72234
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.