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PROVIDER PROFILE · NPI 1851330328

John IoannouM.D.

PRACTICEISLAND RENAL PHYSICIANS PCSee all providers at this practice →
NephrologyRockville Centre, NYI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
2,105
Beneficiaries
—
Total drug cost
$405K
Distinct drugs
57
Brand share
20.3%
Top prescribed drugs
Dapagliflozin Propanediol159 claims
Losartan Potassium146 claims
Amlodipine Besylate129 claims
Furosemide115 claims
Allopurinol99 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
2,996
Unique beneficiaries
—
Total services
5,717
Distinct HCPCS
42
Medicare payment
$350K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 690 Nephrology providers in NY — top quintile (cohort median 875).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$1K
Payment records
54
By payment type
Food and Beverage$1K
REFERRAL NETWORK

Where John Ioannou'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). 119 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
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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.