What is Hal Gerstein's specialty?

Hal Gerstein (NPI 1790874121) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Great Neck, NY.

Where does Hal Gerstein practice?

Hal Gerstein practices in Great Neck, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1790874121.

How much does Medicare pay Hal Gerstein?

Hal Gerstein (NPI 1790874121) received approximately $870K in total Medicare Part B payments, serving 69 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1790874121

Hal GersteinMD

Hematology-OncologyGreat Neck, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

169

Unique beneficiaries

—

Total services

666

Distinct HCPCS

Medicare payment

$71K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$10K

Distinct drugs

Brand share

50.0%

Top prescribed drugs

Apixaban13 claims

Letrozole13 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Top paying entities

Food and Beverage$1K

REFERRAL NETWORK

Where Hal Gerstein'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Bioreference Health, Llc Clinical Laboratory · Elmwood Park, NJ	81	554
NORTH SHORE UNIVERSITY HOSPITAL	19	140
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	18	99
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	17	67

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events