caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1154491330

Gregory MazarinMD

Emergency MedicineBronx, NYI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 330059
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
226
Unique beneficiaries
—
Total services
232
Distinct HCPCS
4
Medicare payment
$33K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 3,737 Emergency Medicine providers in NY — below median (cohort median 287).
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.
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
REFERRAL NETWORK

Where Gregory Mazarin'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). 4 inbound referrers · 40 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
New York City Health And Hospitals Corporation
Ambulance Service Provider · Brooklyn, NY
90169
Bioreference Health, Llc
Clinical Laboratory · Elmwood Park, NJ
1749
Vineet Jain
Diagnostic Radiology · Bronx, NY
1526
Jonathan Trambert
Diagnostic Radiology · Bronx, NY
1216
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MONTEFIORE MEDICAL CENTER271675
TRANSCARE NEW YORK, INC.3871
TC AMBULANCE CORPORATION3566
PORRECA, FRANCIS3451
Lifeline Ambulance Service Inc
Ambulance Service Provider · Brooklyn, NY
3251
NPI 18918880463047
Seniorcare Emergency Medical Services Inc.
Ambulance Service Provider · Bronx, NY
2954
Citywide Mobile Response Corp
Ambulance Service Provider · Bronx, NY
2854
Nogah Haramati
Diagnostic Radiology · Bronx, NY
2661
Thomas Mcdonald
Cardiology · Tampa, FL
2442
Karen Sperling
Diagnostic Radiology · Bronx, NY
2430
Alain Cunqueiro
Diagnostic Radiology · Brooklyn, NY
2332
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.