Physician profile

Jeffrey K Klingenstein

Gastroenterology (Internal Medicine) · Astoria, NY

NPI 1215948310

$6,944.91

in general payments reported to CMS, 2019-2025

30 companies · $930 in 2025

The $930 reported for 2025 was more than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

Payments by year

General and research payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Food and Beverage$3,079.55

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Research payments are listed separately below. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $2,177.52 2019-2025 Xifaxan, Trulance
Gilead Sciences, INC. $1,053.16 2019-2025
Abbvie INC. $691.70 2019-2025
E.R. Squibb & Sons, L.L.C. $587.57 2019-2023 Zeposia
Phathom Pharmaceuticals, INC. $375.36 2024-2025 Voquezna
Madrigal Pharmaceuticals $284.25 2024-2025 Rezdiffra, Resmetirom
Allergan, INC. $185.35 2019-2020
Ardelyx, INC. $137.14 2022-2025 Ibsrela
Takeda Pharmaceuticals U.S.A., INC. $137.06 2021-2025 Entyvio, Eohilia
Janssen Biotech, INC. $136.55 2022-2025 Tremfya, Simponi Aria, Simponi
Braintree Laboratories, INC. $134.93 2019-2024 Suflave, Sutab
Pfizer INC. $131.49 2019-2025
Novo Nordisk INC $110.88 2025 Ozempic, Rybelsus, Wegovy
Qol Medical, LLC $99.43 2019-2020
Ferring Pharmaceuticals INC. $87.19 2019
Show all 30 companies
CompanyGeneral paymentsYearsTop products
Anx Robotica Corp $75.48 2025
Redhill Biopharma INC. $65.02 2021-2023 Talicia
Ironwood Pharmaceuticals, INC $63.40 2021-2025
Alfasigma USA, INC. $55.62 2020-2021
Ipsen Biopharmaceuticals, INC $53.10 2024-2025 Bylvay, Iqirvo
Merck Sharp & Dohme LLC $51.60 2020-2022
Intercept Pharmaceuticals, INC. $42.85 2023-2025 Ocaliva
Kowa Pharmaceuticals America, INC. $41.74 2021
Celgene Corporation $37.01 2021-2024 Zeposia
Capsovision, INC. $31.31 2023-2024 Capsocam Plus
Intra-Sana Laboratories $25.97 2025 Reltone 200 Mg, Glycate, Reltone 400 Mg
Amarin Pharma, INC. $21.34 2021
Genzyme Corporation $18.76 2023
Nestle Healthcare Nutrition INC. $18.01 2022
Shionogi INC $14.12 2019

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

Research and ownership

$24,479.13 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.

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Payment summary

Jeffrey K Klingenstein

$6,944.91

in general payments reported 2019-2025

Years
2019-2025
Top company
Allergan, INC.
Context
The $930 reported for 2025 was more than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

https://glasscript.com/doctor/10213/jeffrey-k-klingenstein

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.