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

IAN R HANTMAN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1609061043
CMS profile
344679
Location
NEW ROCHELLE, 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 · PY2023 · Entire year

$4,487.67

207 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

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,124.56 202
Education $363.11 5

By paying entity

PY2023 · entire year · sorted by reported total

Payment records · PY2023

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

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

207 matching records · $4,487.67 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 207 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 207.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $25.8212/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050611403 CMS
GENZYME CORPORATION $35.2212/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049999467 CMS
EMD Serono, Inc. $28.0012/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261119753234 CMS
Gilead Sciences, Inc. $25.1912/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025630255 CMS
Seagen Inc. $15.4912/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995685131 CMS
JAZZ PHARMACEUTICALS INC. $20.4512/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058429581 CMS
Blueprint Medicines Corporation $25.8012/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051259969 CMS
Merck Sharp & Dohme LLC $18.1412/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048444993 CMS
Celltrion USA Inc. $43.0212/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044126619 CMS
Novartis Pharmaceuticals Corporation $12.1912/12/2023 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000089058 CMS
Genentech USA, Inc. $19.6312/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040380055 CMS
Janssen Biotech, Inc. $24.7912/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988458407 CMS
Novartis Pharmaceuticals Corporation $18.8812/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992248329 CMS
AstraZeneca Pharmaceuticals LP $33.1012/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014155321 CMS
Lilly USA, LLC $5.8412/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261031662451 CMS
Gilead Sciences, Inc. $6.3212/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261026109201 CMS
Amneal Pharmaceuticals LLC $15.1811/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261053498203 CMS
Astellas Pharma US Inc $23.2711/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034704391 CMS
Rigel Pharmaceuticals, Inc. $12.9911/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261033439119 CMS
E.R. Squibb & Sons, L.L.C. $23.1311/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015490985 CMS
E.R. Squibb & Sons, L.L.C. $5.0011/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015490989 CMS
Gilead Sciences, Inc. $2.6111/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261026154291 CMS
Pharmacyclics LLC, An AbbVie Company $23.3611/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998286751 CMS
Celgene Corporation $24.1811/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015490969 CMS
Daiichi Sankyo Inc. $22.1111/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006543495 CMS
Blueprint Medicines Corporation $25.8011/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051259937 CMS
AstraZeneca Pharmaceuticals LP $20.3611/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011935313 CMS
GENZYME CORPORATION $22.0611/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049999441 CMS
Myriad Genetic Laboratories, Inc. $24.5411/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261059776689 CMS
Myriad Genetic Laboratories, Inc. $73.6311/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261059776693 CMS
PFIZER INC. $14.7611/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049428585 CMS
Seagen Inc. $21.6511/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995685073 CMS
Janssen Biotech, Inc. $82.9910/30/2023 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988458387 CMS
Novartis Pharmaceuticals Corporation $32.7110/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992248313 CMS
CTI BioPharma Corp. $33.0310/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261039690725 CMS
Incyte Corporation $19.2310/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044548455 CMS
JAZZ PHARMACEUTICALS INC. $19.8110/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058417249 CMS
ABBVIE INC. $20.1110/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026997433411 CMS
JAZZ PHARMACEUTICALS INC. $21.3310/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058422451 CMS
AstraZeneca Pharmaceuticals LP $20.5910/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261012012491 CMS
Merck Sharp & Dohme LLC $16.0710/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048444997 CMS
Seagen Inc. $16.5110/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995685103 CMS
Seagen Inc. $28.2510/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995685059 CMS
Gilead Sciences, Inc. $34.9110/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025540019 CMS
Celgene Corporation $17.6110/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015490921 CMS
TAIHO ONCOLOGY, INC. $24.7910/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055230853 CMS
Novartis Pharmaceuticals Corporation $31.6510/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992248301 CMS
Karyopharm Therapeutics Inc. $23.8010/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056901659 CMS
AstraZeneca Pharmaceuticals LP $16.3310/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015907521 CMS
GlaxoSmithKline, LLC. $24.2110/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000963097 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,673.20 185
PY2020 $2,209.43 126
PY2021 $2,948.70 152
PY2022 $3,324.23 183
PY2023 $4,487.67 207
PY2024 $5,765.21 184
PY2025 $4,235.85 141

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.

Cite this record.

Plain
IAN R HANTMAN, NPI 1609061043. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1609061043.
APA 7
IndustryPayments. (2026). IAN R HANTMAN, NPI 1609061043 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1609061043
Bluebook
IAN R HANTMAN, NPI 1609061043, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1609061043.

Source: Centers for Medicare & Medicaid Services, Open Payments.