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

Covered recipient · General Payments record

NORMAN I KLEIN

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1184668220
CMS profile
234649
Location
BROOKLYN, NY

General Payments · PY2019–2025

$2,494.27

  • Reported across 105 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$742.19

29 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $742.19 29

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $76.79 4
PY2020 $42.32 2
PY2021 $126.76 6
PY2022 $435.53 20
PY2023 $506.42 22
PY2024 $564.26 22
PY2025 $742.19 29

Payment records · PY2025 (29)

Sorted by paying entity, then date · as published by CMS

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ALK-Abello, Inc $25.47 05/06/2025 Food and Beverage Undisputed 06/30/2026 1222417152 CMS
ARS Pharmaceuticals Operations, Inc. $23.07 03/25/2025 Food and Beverage Undisputed 06/30/2026 1245880763 CMS
ARS Pharmaceuticals Operations, Inc. $20.54 08/05/2025 Food and Beverage Undisputed 06/30/2026 1245880765 CMS
BioCryst US Sales Co., LLC $22.80 03/18/2025 Food and Beverage Undisputed 06/30/2026 1222001818 CMS
BioCryst US Sales Co., LLC $23.41 07/22/2025 Food and Beverage Undisputed 06/30/2026 1222012301 CMS
CSL Behring $24.47 01/14/2025 Food and Beverage Undisputed 06/30/2026 1232361411 CMS
CSL Behring $34.39 01/22/2025 Food and Beverage Undisputed 06/30/2026 1232361413 CMS
CSL Behring $32.63 02/04/2025 Food and Beverage Undisputed 06/30/2026 1232361415 CMS
CSL Behring $23.45 03/04/2025 Food and Beverage Undisputed 06/30/2026 1232361423 CMS
CSL Behring $34.94 03/11/2025 Food and Beverage Undisputed 06/30/2026 1232361425 CMS
CSL Behring $24.70 03/25/2025 Food and Beverage Undisputed 06/30/2026 1232361431 CMS
CSL Behring $32.10 04/01/2025 Food and Beverage Undisputed 06/30/2026 1232361433 CMS
CSL Behring $30.71 05/13/2025 Food and Beverage Undisputed 06/30/2026 1232361435 CMS
CSL Behring $31.58 07/15/2025 Food and Beverage Undisputed 06/30/2026 1232361437 CMS
CSL Behring $3.79 08/19/2025 Food and Beverage Undisputed 06/30/2026 1232361439 CMS
CSL Behring $32.41 08/20/2025 Food and Beverage Undisputed 06/30/2026 1232361441 CMS
CSL Behring $1.58 09/09/2025 Food and Beverage Undisputed 06/30/2026 1232361443 CMS
CSL Behring $30.44 09/28/2025 Food and Beverage Undisputed 06/30/2026 1232361447 CMS
CSL Behring $29.72 10/28/2025 Food and Beverage Undisputed 06/30/2026 1232361449 CMS
CSL Behring $23.71 11/18/2025 Food and Beverage Undisputed 06/30/2026 1232361451 CMS
CSL Behring $30.44 11/26/2025 Food and Beverage Undisputed 06/30/2026 1232361453 CMS
GENZYME CORPORATION $30.08 04/08/2025 Food and Beverage Undisputed 06/30/2026 1233313558 CMS
GENZYME CORPORATION $26.51 08/12/2025 Food and Beverage Undisputed 06/30/2026 1233313640 CMS
GENZYME CORPORATION $23.97 11/11/2025 Food and Beverage Undisputed 06/30/2026 1233313658 CMS
Ionis Pharmaceuticals, Inc. $25.88 10/21/2025 Food and Beverage Undisputed 06/30/2026 1246785266 CMS
Ionis Pharmaceuticals, Inc. $16.48 12/02/2025 Food and Beverage Undisputed 06/30/2026 1246785269 CMS
Novartis Pharmaceuticals Corporation $27.27 07/14/2025 Food and Beverage Undisputed 06/30/2026 1200380124 CMS
Novartis Pharmaceuticals Corporation $30.60 09/10/2025 Food and Beverage Undisputed 06/30/2026 1200380130 CMS
Novartis Pharmaceuticals Corporation $25.05 11/05/2025 Food and Beverage Undisputed 06/30/2026 1200380140 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.