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PROVIDER PROFILE · NPI 1326094145

Nancy Niemann RoyerMD

Internal MedicineO Fallon, MOI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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REFERRAL NETWORK

Where Nancy Niemann Royer'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). 14 inbound referrers · 51 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
James Kelly
Diagnostic Radiology · Saint Louis, MO
52124
Neal Holzum
Internal Medicine · O Fallon, MO
4477
Nadia Zia
Internal Medicine · O Fallon, MO
3889
St. Charles County Ambulance District
Ambulance Service Provider · Saint Peters, MO
34117
Christine Wilmsen
Internal Medicine · Jennings, MO
2833
SSM HEALTH CARE ST. LOUIS2867
BARNES JEWISH ST PETERS HOSPITAL INC2579
MISSOURI BAPTIST MEDICAL CENTER2554
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL2169
MERCY HOSPITALS EAST COMMUNITIES2149
Joelle Biernacki
Diagnostic Radiology · Saint Louis, MO
1845
Leo Hsu
Emergency Medicine · O Fallon, MO
1544
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
PROGRESS WEST HEALTHCARE CENTER353934
St. Charles County Ambulance District
Ambulance Service Provider · Saint Peters, MO
116321
Hui Hua Shu
Diagnostic Radiology · Saint Louis, MO
70134
Ajay Chapa
Diagnostic Radiology · Chicago, IL
67156
Robert Stachecki
Diagnostic Radiology · Saint Louis, MO
66154
Michael Penney
Diagnostic Radiology · Fort Worth, TX
56137
Nadia Zia
Internal Medicine · O Fallon, MO
5092
Joelle Biernacki
Diagnostic Radiology · Saint Louis, MO
48113
Punita Gupta
Diagnostic Radiology · Saint Louis, MO
4084
Heather Garrett
Diagnostic Radiology · Saint Louis, MO
3979
Neal Holzum
Internal Medicine · O Fallon, MO
3888
James Kelly
Diagnostic Radiology · Saint Louis, MO
3766
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.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
80
Unique beneficiaries
—
Total services
81
Distinct HCPCS
2
Medicare payment
$9K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,563 Internal Medicine providers in MO — bottom quintile (cohort median 658).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.