GlassScriptPhysician profile
Allan Scott Chamberlain
NPI 1508864281
$1,491.66
in general payments reported to CMS, 2019-2025
23 companies · $199 in 2025
The $199 reported for 2025 was more than what a typical Obstetrics & Gynecology provider received nationally (typical 2025 total: $158).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $382 · 2020: $51.45 · 2021: $62.27 · 2022: $119 · 2023: $261 · 2024: $416 · 2025: $199.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $876.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $876.31 |
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 |
|---|---|---|---|
| Abbvie INC. | $437.25 | 2019-2025 | Vraylar |
| Astellas Pharma US INC | $247.89 | 2022-2025 | Veozah, Myrbetriq |
| Novo Nordisk INC | $114.07 | 2022-2024 | Ozempic, Rybelsus, Wegovy |
| Shield Therapeutics INC | $87.35 | 2024 | |
| Medtronic USA, INC. | $72.71 | 2019 | |
| Medtronic, INC. | $62.27 | 2021 | |
| Organon LLC | $54.94 | 2024-2025 | Nexplanon |
| Exeltis, USA INC. | $47.98 | 2023-2025 | Slynd, Tyblume |
| Daiichi Sankyo INC. | $46.10 | 2019-2024 | Injectafer |
| Sage Therapeutics, LLC | $45.92 | 2025 | Zurzuvae |
| Merck Sharp & Dohme LLC | $39.82 | 2019-2020 | |
| Coopersurgical, INC. | $37.75 | 2019 | |
| Allergan, INC. | $31.95 | 2019-2020 | |
| Intuitive Surgical, INC. | $28.98 | 2024 | |
| Amag Pharmaceuticals, INC. | $25.91 | 2019 |
Show all 23 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Boston Scientific Corporation | $18.81 | 2019 | |
| Phathom Pharmaceuticals, INC. | $15.89 | 2024 | Voquezna |
| Pfizer INC. | $14.24 | 2022 | |
| Exact Sciences Corporation | $14.19 | 2025 | The Cologuard Plus Collection Kit |
| Takeda Pharmaceuticals U.S.A., INC. | $13.64 | 2025 | Trintellix |
| Smith+Nephew, INC. | $13.11 | 2019 | |
| Genentech USA, INC. | $11.27 | 2019 | |
| Meditrina | $9.62 | 2024 |
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 Allan Chamberlain 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.
Share this page
Keep an eye on this page
Get an email when the next June refresh changes this page. No account needed.
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.