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PROVIDER PROFILE · NPI 1790885572

Ignatius TangM.D.

NephrologyChicago, ILI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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REFERRAL NETWORK

Where Ignatius Tang'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). 40 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
OBERHOLZER, JOSEF75793
Edward Michals
Diagnostic Radiology · Chicago, IL
48133
MAR, WINNIE46132
PORTER, ANNA40193
Karen Xie
Diagnostic Radiology · Chicago, IL
40114
FARZANEH-FAR, AFSHIN37238
Suman Setty
Pathology · Chicago, IL
37142
Vijay Yeldandi
Infectious Disease · Melrose Park, IL
37231
Thomas Anderson
Diagnostic Radiology · Libertyville, IL
36117
City Of Chicago
Ambulance Service Provider · Chicago, IL
3190
WILBUR, ANDREW3181
Ron Gaba
Interventional Radiology · Chicago, IL
28127
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
203
Unique beneficiaries
—
Total services
330
Distinct HCPCS
4
Medicare payment
$30K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 404 Nephrology providers in IL — bottom quintile (cohort median 1,672).
QUALITY · MIPS · 2024
Final MIPS score
93.3
Quality
73.5
Cost
70.7
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.77%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
5,619
Beneficiaries
—
Total drug cost
$961K
Distinct drugs
70
Brand share
28.0%
Top prescribed drugs
Sulfamethoxazole/Trimethoprim660 claims
Carvedilol410 claims
Calcitriol384 claims
Prednisone334 claims
Atorvastatin Calcium312 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$283
Payment records
5
By payment type
Food and Beverage$283