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PROVIDER PROFILE · NPI 1063598324

Gregory ZweigMD

Diagnostic RadiologySchaumburg, ILI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 140211
Hospital
CCN 140242
Hospital
CCN 140286
Hospital
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
2,510
Unique beneficiaries
—
Total services
2,620
Distinct HCPCS
39
Medicare payment
$99K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,350 Diagnostic Radiology providers in IL — below median (cohort median 3,137).
QUALITY · MIPS · 2024
Final MIPS score
95.6
Quality
88.5
Cost
0.0
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.87%
APM Entity
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Gregory Zweig'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). 134 inbound referrers · 346 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
CENTRAL DUPAGE HOSPITAL ASSOCIATION1,7584,427
Michael Tseng
Diagnostic Radiology · Winfield, IL
164370
John Treanor
Diagnostic Radiology · Winfield, IL
138264
Michael Nixon
Diagnostic Radiology · Winfield, IL
123404
Robert Nierzwicki
Cardiology · Winfield, IL
120268
Aslam Khaja
Neurology · Lake Barrington, IL
105244
George Nijmeh
Cardiology · Winfield, IL
95148
Michael Severino
Cardiology · Winfield, IL
81179
William Mackin
Interventional Cardiology · Geneva, IL
78128
Thomas Oryszczak
Hospitalist · Arlington Heights, IL
77195
DELNOR COMMUNITY HOSPITAL75132
Gannon Dudlar
Emergency Medicine · Key West, FL
74139
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
CENTRAL DUPAGE HOSPITAL ASSOCIATION7672,043
Superior Air-Ground Ambulance Service, Inc
Ambulance Service Provider · Elmhurst, IL
262534
Nilay Patel
Diagnostic Radiology · Winfield, IL
260555
Michael Schwartz
Internal Medicine · Winfield, IL
249448
Mark Kelly
Diagnostic Radiology · Winfield, IL
240606
Robert Nierzwicki
Cardiology · Winfield, IL
222573
Aaron Wielenberg
Diagnostic Radiology · Berwyn, IL
212404
Rajeev Polasani
Diagnostic Radiology · Evanston, IL
202475
Michael Tseng
Diagnostic Radiology · Winfield, IL
197404
PIETERS, CRAIG180366
George Nijmeh
Cardiology · Winfield, IL
166295
NPI 1467410233159214
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.