PROVIDER PROFILE · NPI 1871865519

Ioannis MantzarisM.D

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Hematology-OncologyBronx, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

211

Distinct HCPCS

Medicare payment

$22K

Peer benchmark

Total Medicare services vs. 628 Hematology-Oncology providers in NY — bottom quintile (cohort median 883).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$329K

Distinct drugs

Brand share

70.8%

Top prescribed drugs

Valacyclovir Hcl48 claims

Ruxolitinib Phosphate20 claims

Atorvastatin Calcium17 claims

Metoprolol Succinate11 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

27.5

Cost

68.4

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$168

Payment records

By payment type

Food and Beverage$168

REFERRAL NETWORK

Where Ioannis Mantzaris'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
DERMAN, OLGA	18	50
Noah Kornblum Medical Oncology · Bronx, NY	11	65

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history