GlassScriptPhysician profile
Preston P Purdum
NPI 1275566283
$9,449.08
in general payments reported to CMS, 2019-2025
28 companies · none reported in 2025
See the full distribution for Gastroenterology (Internal Medicine)
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,997 · 2020: $2,162 · 2021: $3,512 · 2022: $1,778.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Abbvie INC. | $1,990.40 | 2019-2022 | |
| Takeda Pharmaceuticals U.S.A., INC. | $1,209.76 | 2019-2022 | |
| Janssen Biotech, INC. | $995.63 | 2019-2022 | |
| Gilead Sciences, INC. | $883.31 | 2019-2022 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $858.94 | 2019-2022 | |
| Ferring Pharmaceuticals INC. | $308.04 | 2019-2022 | |
| Celgene Corporation | $297.74 | 2021-2022 | |
| Alnylam Pharmaceuticals INC. | $288.64 | 2020-2022 | |
| Qol Medical, LLC | $286.50 | 2019-2022 | |
| Intercept Pharmaceuticals, INC. | $263.59 | 2019-2022 | |
| Pfizer INC. | $255.05 | 2019-2022 | |
| Ironwood Pharmaceuticals, INC | $240.59 | 2019-2022 | |
| Vivus LLC | $217.18 | 2020-2022 | |
| Nestle Healthcare Nutrition INC. | $193.97 | 2020-2022 | |
| Merck Sharp & Dohme LLC | $188.95 | 2019-2022 |
Show all 28 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Amgen INC. | $161.47 | 2020-2022 | |
| Intra-Sana Laboratories | $141.23 | 2021-2022 | |
| E.R. Squibb & Sons, L.L.C. | $115.27 | 2021 | |
| Shionogi INC | $112.19 | 2019-2020 | |
| Daiichi Sankyo INC. | $97.94 | 2019-2022 | |
| Ucb, INC. | $73.61 | 2019-2020 | |
| Redhill Biopharma INC. | $72.21 | 2020-2022 | |
| Dova Pharmaceuticals | $50.53 | 2019 | |
| Allergan, INC. | $48.27 | 2019-2020 | |
| Shire North American Group INC | $47.87 | 2019 | |
| W. L. Gore & Associates, INC. | $19.35 | 2022 | |
| Ardelyx, INC. | $15.93 | 2022 | |
| Regeneron Healthcare Solutions, INC. | $14.92 | 2022 |
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Preston Purdum 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.