Physician profile

Charles Calais

Allergy & Immunology (Internal Medicine) · San Antonio, TX

NPI 1831416197

$4,981.85

in general payments reported to CMS, 2019-2025

23 companies · $1,080 in 2025

The $1,080 reported for 2025 was more than what a typical Allergy & Immunology (Internal Medicine) provider received nationally (typical 2025 total: $681).

See the full distribution for Allergy & Immunology (Internal Medicine)

Payments by year

General 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$4,195.66
Education$34.00

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.

CompanyGeneral paymentsYearsTop products
Glaxosmithkline, LLC. $790.20 2022-2025 Nucala, Arexvy, Trelegy Ellipta
Astrazeneca Pharmaceuticals LP $690.77 2022-2025 Airsupra, Tezspire, Fasenra
Sanofi-Aventis U.S. LLC $606.61 2022-2025
Regeneron Healthcare Solutions, INC. $433.70 2021-2023 Dupixent
Genentech USA, INC. $422.38 2023-2025 Xolair
Takeda Pharmaceuticals U.S.A., INC. $346.54 2023-2025 Cuvitru, Takhzyro, Glassia
Genzyme Corporation $312.23 2022-2024
Novartis Pharmaceuticals Corporation $281.57 2024-2025
Grifols USA, LLC $192.88 2023-2025 Xembify
Pfizer INC. $147.72 2022-2023
Alk-Abello, INC $143.19 2022-2025 Odactra, Grastek, Ragwitek
Blueprint Medicines Corporation $121.49 2025 Ayvakit
Amgen INC. $73.89 2024-2025 Tezspire
Kaleo, INC. $65.36 2022-2023 Auvi-Q
Organon LLC $61.86 2025
Show all 23 companies
CompanyGeneral paymentsYearsTop products
Optinose US, INC. $60.63 2024
Greer Laboratories, INC. $51.45 2022-2025 Oralair
Csl Behring $41.44 2024-2025 Hizentra
Octapharma USA, INC. $40.00 2024-2025 Octagam Immune Globulin (Human), Cutaquig
Aimmune Therapeutics, INC. $31.38 2021-2022
Kedrion Biopharma, INC. $26.54 2025 Kedrab, Gammaked, Koate
Pharming Healthcare, INC. $25.54 2025 Ruconest
Merck Sharp & Dohme LLC $14.48 2023

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:

These are normal questions. A good clinician will welcome them.

Share this page

Payment summary

Charles Calais

$4,981.85

in general payments reported 2019-2025

Years
2021-2025
Top company
Glaxosmithkline, LLC.
Context
The $1,080 reported for 2025 was more than what a typical Allergy & Immunology (Internal Medicine) provider received nationally (typical 2025 total: $681).

https://glasscript.com/doctor/2654142/charles-calais

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

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.