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PROVIDER PROFILE · NPI 1306020664

Mark WalshauserM.D.

Hematology-OncologyO Fallon, ILI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
Final MIPS score
100.0
Quality
7.0
Cost
61.8
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
1.05%
Group
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (6)

CCN 141504
Hospice
CCN 140053
Hospital
CCN 140145
Hospital
CCN 140187
Hospital
CCN 141336
Hospital
CCN 141349
Hospital
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$9K
Payment records
93
By payment type
Consulting Fee$6K
Food and Beverage$3K
Education$90
PRESCRIBING · PART D · 2024
Total Rx claims
1,288
Beneficiaries
—
Total drug cost
$3.4M
Distinct drugs
36
Brand share
28.3%
Top prescribed drugs
Anastrozole129 claims
Ondansetron Hcl108 claims
Prochlorperazine Maleate94 claims
Prednisone89 claims
Hydrocodone/Acetaminophen67 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
4,638
Unique beneficiaries
—
Total services
100,535
Distinct HCPCS
64
Medicare payment
$529K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 444 Hematology-Oncology providers in IL — top quintile (cohort median 1,266).
REFERRAL NETWORK

Where Mark Walshauser'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). 31 inbound referrers · 40 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
James Farn
Diagnostic Radiology · Springfield, IL
44182
DUMONTIER, CHARLES44196
Daniel Keys
Diagnostic Radiology · Springfield, IL
35112
HOLDENER, GREGORY32152
VINCH, CRAIG2795
LAL, ROOP26116
LEE, ROBERT26102
Medstar Ambulance Inc
Ambulance Service Provider · Sparta, IL
2691
Regina Chiu
Cardiology · O Fallon, IL
25138
Pankaj Kaul
Internal Medicine · Belleville, IL
23197
Amanda Monteleone
Physician Assistant · Saint Louis, MO
2265
Wasseem El-Aneed
Internal Medicine · Festus, MO
19157
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ST ELIZABETHS HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER882,241
Stephen Olson
Pathology · Saint Louis, MO
31272
Charles Smittkamp
Diagnostic Radiology · Springfield, IL
30134
HOLDENER, GREGORY29123
Naveen Saini
Diagnostic Radiology · Belleville, IL
2884
Daniel Keys
Diagnostic Radiology · Springfield, IL
2865
James Farn
Diagnostic Radiology · Springfield, IL
2870
Mission Care Of Illinois Llc
Ambulance Service Provider · Belleville, IL
2672
Syed Hussain
Internal Medicine · Saint Charles, MO
25226
PROTESTANT MEMORIAL MEDICAL CENTER, INC.25192
HOWARD, ALLISON2185
SCHROEDER, PAUL2043
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.