Physician profile
William P Klein
NPI 1205834819
$14,189.57
in general payments reported to CMS, 2019-2025
63 companies · $1,896 in 2025
The $1,896 reported for 2025 was more than what 93% 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: $1,962 · 2020: $1,470 · 2021: $2,168 · 2022: $1,950 · 2023: $2,672 · 2024: $2,071 · 2025: $1,896.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $6,558 · Education: $80.86.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $6,557.96 |
| Education | $80.86 |
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 |
|---|---|---|---|
| Glaxosmithkline, LLC. | $1,653.01 | 2019-2025 | Trelegy Ellipta, Nucala, Shingrix |
| Grifols USA, LLC | $1,099.06 | 2019-2025 | Prolastin-C Liquid |
| Boehringer Ingelheim Pharmaceuticals, INC. | $1,043.41 | 2019-2025 | Ofev, Spiriva Respimat, Stiolto Respimat |
| Novartis Pharmaceuticals Corporation | $1,011.77 | 2019-2025 | |
| Genzyme Corporation | $952.65 | 2019-2025 | |
| Abbvie INC. | $952.54 | 2021-2025 | |
| Amgen INC. | $700.97 | 2019-2025 | Evenity, Prolia, Prolia |
| Astrazeneca Pharmaceuticals LP | $690.26 | 2019-2025 | Fasenra, Breztri |
| Regeneron Healthcare Solutions, INC. | $674.78 | 2021-2025 | Dupixent |
| Pfizer INC. | $504.94 | 2019-2024 | |
| Insmed, INC. | $413.73 | 2022-2025 | Arikayce, Brinsupri |
| Lilly USA, LLC | $397.62 | 2020-2025 | Mounjaro, Trulicity, Zepbound |
| Janssen Pharmaceuticals, INC | $340.39 | 2019-2023 | Xarelto |
| Takeda Pharmaceuticals U.S.A., INC. | $312.51 | 2022-2025 | Cuvitru, Hyqvia, Glassia |
| Octapharma USA, INC. | $294.32 | 2022-2025 | Panzyga, Octagam Immune Globulin (Human) |
Show all 63 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Inari Medical, INC. | $257.48 | 2023-2024 | Ct Thrombectomy System Kit, Flowtriever Catheter, S |
| Merck Sharp & Dohme LLC | $216.14 | 2019-2025 | Capvaxive, Gardasil 9, Vaxneuvance |
| Astellas Pharma US INC | $190.95 | 2019-2024 | Veozah |
| Baxter Healthcare | $177.68 | 2022-2024 | Hillrom - Life 2000 Ventilation System, Hillrom - Vest System Model 105 Home Care |
| Genentech USA, INC. | $162.17 | 2019-2023 | Xolair |
| Allergan, INC. | $159.15 | 2019-2020 | |
| Otsuka America Pharmaceutical, INC. | $151.38 | 2019 | |
| Ani Pharmaceuticals, INC. | $147.48 | 2025 | Purified Cortrophin Gel |
| Exact Sciences Corporation | $141.96 | 2023-2025 | Cologuard Collection Kit, The Cologuard Plus Collection Kit |
| Novo Nordisk INC | $137.74 | 2021-2024 | Ozempic, Rybelsus |
| Amarin Pharma, INC. | $125.10 | 2019-2020 | |
| Vifor Pharma, INC. | $100.45 | 2024-2025 | Zemaira |
| Mylan Specialty L.P. | $70.06 | 2019-2021 | |
| Shionogi INC | $68.88 | 2022-2024 | Fetroja |
| Advanced Respiratory, INC | $67.59 | 2021 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $67.14 | 2020-2025 | Xifaxan |
| Nabriva Therapeutics, Plc | $60.01 | 2022 | |
| E.R. Squibb & Sons, L.L.C. | $59.79 | 2021 | |
| Gilead Sciences, INC. | $59.32 | 2023 | |
| Biohaven Pharmaceutical Holding Company LTD. | $51.49 | 2022 | |
| Optinose US, INC. | $49.84 | 2023 | |
| United Therapeutics Corporation | $43.39 | 2021 | |
| Philips North America LLC | $42.07 | 2021-2023 | |
| Actelion Pharmaceuticals US, INC. | $36.35 | 2021-2022 | |
| Esperion Therapeutics, INC. | $34.36 | 2021 | |
| Sumitomo Pharma America, INC. | $33.73 | 2023-2025 | Gemtesa |
| Mallinckrodt Hospital Products INC. | $31.93 | 2022 | |
| Circassia INC. | $30.41 | 2019 | |
| Electromed, INC. | $28.87 | 2021 | |
| Pinnacle Biologics, INC | $24.74 | 2024 | Photofrin |
| Teva Pharmaceuticals USA, INC. | $24.00 | 2020 | |
| Radius Health, INC. | $23.13 | 2024 | Tymlos |
| Shire North American Group INC | $23.04 | 2019 | |
| Invivyd INC | $21.93 | 2025 | Pemgarda |
| Pulmonx Corporation | $21.76 | 2023 | Zephyr Endobronchial Valve, Zephyr Delivery Catheter, Pulmonx Chartis Tablet Console |
| Verona Pharma, INC. | $20.74 | 2025 | Ohtuvayre |
| Xeris Pharmaceuticals, INC. | $20.35 | 2021 | |
| Sanofi-Aventis U.S. LLC | $20.18 | 2021 | |
| Tactile Systems Technology INC | $16.65 | 2022 | |
| Lundbeck LLC | $16.50 | 2020 | |
| Vyera Pharmaceuticals, LLC | $16.48 | 2020 | |
| Stryker Corporation | $15.43 | 2025 | Ct Thrombectomy System Kit, Flowtriever Catheter, S |
| Vertiflex, INC. | $14.98 | 2019 | |
| Medtronic, INC. | $14.86 | 2024 | Minimed 780g |
| Aytu Biopharma, INC. | $13.28 | 2019 | |
| Melinta Therapeutics, LLC | $13.04 | 2020 | |
| Biogen, INC. | $11.94 | 2019 | |
| Sanofi Pasteur INC. | $11.67 | 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.
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.