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PROVIDER PROFILE · NPI 1073515391

Brian MulrennanMD

PRACTICEGUNDERSEN CLINIC LTDSee all providers at this practice →
Internal MedicineLa Crosse, WII
CROSS-REFERENCE

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REFERRAL NETWORK

Where Brian Mulrennan'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). 19 inbound referrers · 60 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
GUNDERSEN LUTHERAN MEDICAL CENTER INC200800
Gregory Knorr
Internal Medicine · La Crosse, WI
3151
Alexander Bajgrowicz
Diagnostic Radiology · Milwaukee, WI
2544
MANSKE, BRIAN2543
Todd Ebbert
Diagnostic Radiology · La Crosse, WI
2544
Benny Kusuma
Internal Medicine · La Crosse, WI
2231
Joshua Whitson
Internal Medicine · La Crosse, WI
2236
Leah Thompson
Emergency Medicine · La Crosse, WI
1930
Kurt Ziegelbein
Interventional Radiology · La Crosse, WI
1958
Carl Decker
Diagnostic Radiology · Savannah, GA
1730
Anubhi Goel
Hospitalist · La Crosse, WI
1719
Rhonda Heun
Hospitalist · La Crosse, WI
1625
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
GUNDERSEN LUTHERAN MEDICAL CENTER INC264933
JOHNSON, GORDON82160
Tri-State Ambulance, Inc.
Ambulance Service Provider · La Crosse, WI
5793
Paul Stanton
Diagnostic Radiology · La Crosse, WI
4160
UDELL, JOHN3967
Alexander Bajgrowicz
Diagnostic Radiology · Milwaukee, WI
3865
Todd Ebbert
Diagnostic Radiology · La Crosse, WI
3578
Tricia Solbrack
Physician Assistant · La Crosse, WI
3462
Jody Riherd
Diagnostic Radiology · La Crosse, WI
3252
Gabriela Dumitran
Diagnostic Radiology · La Crosse, WI
3148
Michael Witcik
Internal Medicine · La Crosse, WI
3153
Lonnie Simmons
Diagnostic Radiology · La Crosse, WI
2641
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
48
Unique beneficiaries
—
Total services
116
Distinct HCPCS
3
Medicare payment
$5K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,244 Internal Medicine providers in WI — bottom quintile (cohort median 578).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.