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PROVIDER PROFILE · NPI 1154351153

John BrennanMD

NephrologyRacine, WII
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (6)

CCN 522583
Dialysis facility
CCN 522584
Dialysis facility
CCN 522617
Dialysis facility
CCN 520096
Hospital
CCN 520136
Hospital
CCN 520189
Hospital
REFERRAL NETWORK

Where John Brennan'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). 65 inbound referrers · 127 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Liping Xie
Nephrology · Milwaukee, WI
1701,514
ZALESKI, GEORGE67283
James Walker
Diagnostic Radiology · Milwaukee, WI
57206
Paul Minor
Diagnostic Radiology · Mequon, WI
54263
City Of Racine
Ambulance Service Provider · Racine, WI
49209
Desiree Dizadji
Cardiology · Racine, WI
48298
TOTAL RENAL CARE INC47299
Joseph Humphrey
Emergency Medicine · Mount Pleasant, WI
45163
Samuel Rajkowski
Diagnostic Radiology · Park Ridge, IL
45215
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.43257
Robert Hardie
Diagnostic Radiology · Greenfield, WI
41179
Stephen Handrich
Diagnostic Radiology · Greenfield, WI
40129
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ASCENSION ALL SAINTS HOSPITAL, INC4305,430
Pankaj Dhingra
Nephrology · Waukesha, WI
1711,586
Liping Xie
Nephrology · Milwaukee, WI
1241,025
TOTAL RENAL CARE INC961,285
NPI 173014970982452
OLSON, DAVID59237
ZALESKI, GEORGE57268
Paul Minor
Diagnostic Radiology · Mequon, WI
55216
TOTAL RENAL CARE INC51536
Abha Malhotra
Cardiology · Racine, WI
48343
Desiree Dizadji
Cardiology · Racine, WI
47279
James Walker
Diagnostic Radiology · Milwaukee, WI
44207
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
361
Unique beneficiaries
—
Total services
702
Distinct HCPCS
10
Medicare payment
$82K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 145 Nephrology providers in WI — below median (cohort median 835).
PRESCRIBING · PART D · 2024
Total Rx claims
3,616
Beneficiaries
—
Total drug cost
$251K
Distinct drugs
77
Brand share
11.0%
Top prescribed drugs
Amlodipine Besylate335 claims
Losartan Potassium277 claims
Furosemide264 claims
Sevelamer Carbonate146 claims
Lisinopril135 claims
QUALITY · MIPS · 2024
Final MIPS score
75.0
Quality
28.1
Cost
0.0
Improvement activities
0.0
Promoting interop.
0.0
Payment adjustment
0.00%
APM Entity
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$230
Payment records
5
By payment type
Food and Beverage$206
Education$25