Physician profile
William M Klein
NPI 1659359578
$12,153.58
in general payments reported to CMS, 2019-2025
59 companies · $1,782 in 2025
The $1,782 reported for 2025 was more than what 92% of Internal Medicine providers received nationally (typical 2025 total: $156).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $2,203 · 2020: $1,588 · 2021: $1,796 · 2022: $1,473 · 2023: $1,648 · 2024: $1,663 · 2025: $1,782.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $5,094.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $5,093.50 |
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. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Amgen INC. | $1,497.96 | 2019-2025 | Otezla, Repatha, Evenity |
| Lilly USA, LLC | $1,013.31 | 2019-2025 | Mounjaro, Zepbound, Kisunla |
| Astrazeneca Pharmaceuticals LP | $951.13 | 2019-2025 | Airsupra, Breztri, Farxiga |
| Abbvie INC. | $868.95 | 2019-2025 | |
| Novo Nordisk INC | $775.18 | 2019-2025 | Wegovy, Saxenda, Ozempic |
| Boehringer Ingelheim Pharmaceuticals, INC. | $739.41 | 2019-2025 | Jardiance, Synjardy |
| Antares Pharma, INC. | $523.24 | 2019-2025 | Xyosted, Tlando, Nocdurna |
| Glaxosmithkline, LLC. | $509.80 | 2020-2025 | Shingrix, Trelegy Ellipta, Arexvy |
| Pfizer INC. | $484.71 | 2019-2025 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $394.31 | 2019-2024 | Xifaxan, Trulance |
| Takeda Pharmaceuticals U.S.A., INC. | $391.02 | 2019-2023 | Trintellix |
| Janssen Pharmaceuticals, INC | $334.95 | 2019-2023 | Xarelto |
| Amarin Pharma, INC. | $261.21 | 2019-2022 | |
| Astellas Pharma US INC | $191.51 | 2019-2025 | Veozah, Myrbetriq |
| Eisai INC. | $180.81 | 2019-2025 |
Show all 59 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Vivus LLC | $179.44 | 2019-2024 | Qsymia |
| Merz North America, INC. | $177.76 | 2019 | |
| Merck Sharp & Dohme LLC | $159.44 | 2019-2023 | Delstrigo, Dificid |
| Amneal Pharmaceuticals LLC | $147.85 | 2022-2023 | Unithroid |
| Azurity Pharmaceuticals, INC. | $136.71 | 2023-2024 | Edarbi, Edarbyclor, Edarbyclor |
| Genzyme Corporation | $125.72 | 2024-2025 | |
| Verona Pharma, INC. | $122.60 | 2025 | Ohtuvayre |
| Abbott Laboratories | $108.53 | 2019-2025 | Freestyle Libre 3, Freestyle Libre 2 |
| E.R. Squibb & Sons, L.L.C. | $107.08 | 2019-2022 | |
| Sanofi Pasteur INC. | $104.62 | 2019-2024 | |
| Regeneron Healthcare Solutions, INC. | $103.20 | 2019-2021 | |
| Novartis Pharmaceuticals Corporation | $100.07 | 2019-2023 | |
| Horizon Therapeutics Plc | $96.11 | 2020-2021 | |
| Ibsa Pharma INC. | $89.92 | 2022-2024 | Tirosint, Licart, Flector |
| Sanofi-Aventis U.S. LLC | $89.53 | 2019-2021 | |
| Baxter Healthcare | $84.91 | 2025 | Hillrom - Connex Spot Monitor |
| Currax Pharmaceuticals LLC | $80.67 | 2020-2021 | |
| Allergan, INC. | $80.47 | 2019-2022 | |
| Sumitomo Pharma America, INC. | $78.12 | 2025 | Gemtesa |
| Halozyme INC | $70.61 | 2023 | |
| Genentech USA, INC. | $66.72 | 2020-2021 | |
| Acerus Pharmaceuticals Corporation | $59.62 | 2021-2022 | |
| Arbor Pharmaceuticals, INC. | $56.75 | 2020-2021 | |
| Inspire Medical Systems, INC. | $48.43 | 2025 | Inspire |
| Philips North America LLC | $43.16 | 2021-2024 | (5044) Mcot |
| Phadia US INC. | $41.42 | 2023-2024 | Immunocap |
| Nalpropion Pharmaceuticals LLC | $39.39 | 2019 | |
| Seqirus USA INC | $38.01 | 2019-2024 | Fluad, Flucelvax |
| Renalytix Ai, INC. | $37.46 | 2024 | Kidneyintelx Blood Collection Convenience Kit |
| Idorsia Pharmaceuticals US INC | $32.45 | 2023 | Quviviq |
| Advanced Respiratory, INC | $31.89 | 2021 | |
| Lundbeck LLC | $30.41 | 2020-2024 | Rexulti |
| Dexcom, INC. | $27.77 | 2023 | Dexcom G6 Transmitter |
| Kowa Pharmaceuticals America, INC. | $27.71 | 2020 | |
| Corcept Therapeutics | $24.86 | 2025 | Korlym |
| Celgene Corporation | $24.13 | 2019 | |
| Redhill Biopharma INC. | $23.18 | 2022 | |
| Exact Sciences Corporation | $22.93 | 2023 | Cologuard Collection Kit |
| Axsome Therapeutics, INC. | $22.60 | 2023 | Auvelity |
| Tolmar, INC. | $22.50 | 2025 | Jatenzo |
| Cleerly, INC. | $21.61 | 2025 | Cleerly Labs, Cleerly Ischemia |
| Gilead Sciences, INC. | $19.34 | 2021 | |
| Almatica Pharma LLC | $16.75 | 2021 | |
| Aytu Biopharma, INC. | $13.63 | 2020 |
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.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw William Klein listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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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.