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 1174583686

Frederick GreensteinM.D.

UrologyBrooklyn, NYI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 330233
Hospital
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$124
Payment records
5
By payment type
Food and Beverage$124
PRESCRIBING · PART D · 2024
Total Rx claims
2,053
Beneficiaries
—
Total drug cost
$1.2M
Distinct drugs
19
Brand share
39.8%
Top prescribed drugs
Tamsulosin Hcl742 claims
Mirabegron304 claims
Oxybutynin Chloride198 claims
Finasteride197 claims
Ciprofloxacin Hcl96 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
257
Unique beneficiaries
—
Total services
335
Distinct HCPCS
7
Medicare payment
$19K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 756 Urology providers in NY — bottom quintile (cohort median 1,574).
REFERRAL NETWORK

Where Frederick Greenstein'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). 39 inbound referrers · 45 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Seniorcare Emergency Medical Services Inc.
Ambulance Service Provider · Bronx, NY
70134
EINAUGLER, GERALD64395
HAYM SALOMON HOME FOR THE AGED LLC60152
MAIMONIDES MEDICAL CENTER4578
MIDWOOD AMBULANCE & OXYGEN SERVICE INC41302
FIRST RESPONSE AMBULANCE, INC.3850
KUO, MU-I3373
Eugene Gibilaro
Internal Medicine · Brooklyn, NY
33116
Marvin Wertentheil
Ophthalmology · Brooklyn, NY
3144
Albert Khaski
Internal Medicine · Brooklyn, NY
30106
BETH ISRAEL MEDICAL CENTER2847
Precision Health Inc
Independent Diagnostic Testing Facility (IDTF) · Staten Island, NY
2653
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SHIEL HOLDINGS LLC77535
Seniorcare Emergency Medical Services Inc.
Ambulance Service Provider · Bronx, NY
57134
EINAUGLER, GERALD53363
HAYM SALOMON HOME FOR THE AGED LLC4392
Azza Ezzat
Nurse Practitioner · Staten Island, NY
3878
Quest Diagnostics Incorporated
Clinical Laboratory · Clifton, NJ
37130
Precision Health Inc
Portable X-Ray Supplier · Staten Island, NY
3567
Marvin Wertentheil
Ophthalmology · Brooklyn, NY
3046
MAIMONIDES MEDICAL CENTER2967
Michael Scotto Di Clemente
Podiatry · Rockville Centre, NY
2861
MIDWOOD AMBULANCE & OXYGEN SERVICE INC28262
Albert Khaski
Internal Medicine · Brooklyn, NY
27108
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.