Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

HAL GERSTEIN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1790874121
CMS profile
263359
Location
GREAT NECK, NY

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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Filter and download payment records

General Payments · PY2021 · Entire year

$3,986.86

88 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,414.31 73
Consulting Fee $1,410.00 1
Long term medical supply or device loan $1,031.22 11
Education $131.33 3

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 88 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

HAL GERSTEIN

NPI 1790874121 · CMS profile ID 263359

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

GREAT NECK, NY

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 2; records 1–50 of 88 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1790874121?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
HAL GERSTEIN, NPI 1790874121, CMS profile ID 263359. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 88 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1790874121?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). HAL GERSTEIN, NPI 1790874121, CMS profile ID 263359. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 88 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1790874121?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
HAL GERSTEIN, NPI 1790874121, CMS profile ID 263359, IndustryPayments, General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 2; records 1–50 of 88 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1790874121?year=2021&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2021

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

88 matching records · $3,986.86 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 88 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 88.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
NOVARTIS PHARMACEUTICALS CORPORATION $83.3312/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974519 CMS
AstraZeneca Pharmaceuticals LP $24.5012/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829835701 CMS
Janssen Biotech, Inc. $26.5512/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788690061 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $14.5012/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974459 CMS
Ipsen Biopharmaceuticals, Inc $31.2512/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 841912709 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $6.2612/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974453 CMS
PUMA BIOTECHNOLOGY, INC. $12.6011/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834093069 CMS
Alexion Pharmaceuticals, Inc. $11.6711/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783142449 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $83.3311/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974513 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $18.4411/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974449 CMS
Regeneron Healthcare Solutions, Inc. $18.4011/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 809580337 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $8.8511/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974443 CMS
TerSera Therapeutics LLC $20.2811/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851044569 CMS
Ipsen Biopharmaceuticals, Inc $31.2510/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 841912205 CMS
Myovant Sciences Inc. $22.8310/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834955435 CMS
AstraZeneca Pharmaceuticals LP $22.9110/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830112157 CMS
Janssen Biotech, Inc. $24.8910/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788690063 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $83.3310/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974507 CMS
Incyte Corporation $17.3810/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835520081 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $13.4310/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974429 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.5410/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763353924 CMS
TerSera Therapeutics LLC $21.5909/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851044567 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $6.5109/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974435 CMS
E.R. Squibb & Sons, L.L.C. $17.3409/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783470343 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $99.7009/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974503 CMS
Celgene Corporation $17.8809/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783686653 CMS
GENZYME CORPORATION $23.5809/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843443345 CMS
Seagen Inc. $25.5809/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832139015 CMS
TerSera Therapeutics LLC $18.8308/31/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851044561 CMS
Coherus Biosciences Inc. $34.0808/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 855098419 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $14.1008/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974423 CMS
Celgene Corporation $21.6508/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783686647 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $99.7008/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974497 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.5408/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763353926 CMS
Mylan Institutional Inc. $24.3808/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965336213 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $15.9307/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974417 CMS
AstraZeneca Pharmaceuticals LP $23.0007/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829300887 CMS
AstraZeneca Pharmaceuticals LP $20.3807/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829931795 CMS
PUMA BIOTECHNOLOGY, INC. $21.7907/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834088611 CMS
TerSera Therapeutics LLC $17.2507/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851044563 CMS
Seagen Inc. $21.6007/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832138993 CMS
GENZYME CORPORATION $25.0006/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843443331 CMS
Mylan Institutional Inc. $21.5006/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965336087 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $99.7006/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 814974489 CMS
E.R. Squibb & Sons, L.L.C. $19.4206/15/2021 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792814847 CMS
Celgene Corporation $13.7506/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783686641 CMS
Merck Sharp & Dohme Corporation $18.1106/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848644169 CMS
Gilead Sciences, Inc. $11.9206/01/2021 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845873301 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $11.7906/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851883885 CMS
Lilly USA, LLC $17.5005/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819178669 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $2,775.63 96
PY2020 $1,410.50 61
PY2021 $3,986.86 88
PY2022 $3,683.57 93
PY2023 $1,801.01 72
PY2024 $1,451.54 68
PY2025 $1,275.16 54

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.