Physician profile

Colby Harold Grossman

Internal Medicine · Summerville, SC

NPI 1619952371

$9,142.69

in general payments reported to CMS, 2019-2025

58 companies · $665 in 2025

The $665 reported for 2025 was more than what 78% of Internal Medicine providers received nationally (typical 2025 total: $156).

See the full distribution for Internal Medicine

Payments by year

General and research 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$2,169.44
Travel and Lodging$77.45

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. Research payments are listed separately below. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Pfizer INC. $1,168.72 2019-2024
Amgen INC. $1,110.80 2019-2025 Otezla, Repatha, Otezla
Astrazeneca Pharmaceuticals LP $775.46 2019-2025 Farxiga, Airsupra, Fasenra
Novartis Pharmaceuticals Corporation $457.22 2019-2025
Boehringer Ingelheim Pharmaceuticals, INC. $439.56 2019-2025 Jardiance, Synjardy, Tradjenta
Lilly USA, LLC $423.18 2019-2025 Mounjaro, Trulicity, Jardiance
Glaxosmithkline, LLC. $416.90 2019-2025 Trelegy Ellipta, Arexvy, Shingrix
Novo Nordisk INC $367.11 2019-2023 Wegovy
Astellas Pharma US INC $356.09 2019-2022
Janssen Pharmaceuticals, INC $337.45 2019-2023 Xarelto
Abbvie INC. $334.17 2020-2025
Merck Sharp & Dohme LLC $275.28 2019-2025 Verquvo, Capvaxive, Gardasil 9
Amarin Pharma, INC. $238.85 2019-2022
Bayer Healthcare Pharmaceuticals INC. $211.79 2021-2025
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $197.50 2019-2025 Xifaxan
Show all 52 companies
CompanyGeneral paymentsYearsTop products
Sanofi-Aventis U.S. LLC $178.17 2019-2022
Tolmar, INC. $155.82 2023-2025 Jatenzo
Mylan Specialty L.P. $145.29 2019-2024 Yupelri
Sunovion Pharmaceuticals INC. $144.85 2019-2022
Radius Health, INC. $143.34 2019-2021
Esperion Therapeutics, INC. $98.86 2020-2022
Allergan, INC. $92.56 2019-2020
Kvk-Tech, INC. $88.33 2019-2021
Kowa Pharmaceuticals America, INC. $82.05 2022-2025 Livalo, Zoryve, Seglentis
Clarus Therapeutics INC. $80.77 2021
Verity Pharmaceuticals INC. $79.06 2025 Tlando
Supernus Pharmaceuticals, INC. $78.25 2019-2020
Antares Pharma, INC. $66.86 2019-2021
Regeneron Healthcare Solutions, INC. $50.46 2019
Eisai INC. $50.39 2020-2021
Abbott Laboratories $44.08 2021-2022
Edwards Lifesciences Corporation $39.64 2019-2025 Sapien 3 Ultra Resilia
Dexcom, INC. $33.48 2025 Dexcom G6 Transmitter
Arbor Pharmaceuticals, INC. $32.76 2019
Nabriva Therapeutics, Plc $29.35 2021
Alnylam Pharmaceuticals INC. $28.42 2021-2022
Ironwood Pharmaceuticals, INC $24.63 2021
Boston Scientific Corporation $23.47 2023 Wavewriter Alpha Prime 16
Upsher-Smith Laboratories LLC $23.16 2020
Acadia Pharmaceuticals INC $22.70 2022
Insulet Corporation $20.30 2019
Shield Therapeutics INC $19.98 2023 Accrufer
E.R. Squibb & Sons, L.L.C. $19.25 2019
Corcept Therapeutics $18.26 2024 Korlym
Sumitomo Pharma America, INC. $17.81 2023 Gemtesa
Acerus Pharmaceuticals Corporation $17.23 2022
Biohaven Pharmaceuticals, INC. $16.68 2021
Renalytix Ai, INC. $14.47 2023 Kidneyintelx Blood Collection Convenience Kit
Vistapharm, INC. $14.08 2021
Currax Pharmaceuticals LLC $13.46 2020
Teva Pharmaceuticals USA, INC. $12.29 2019
G Medical Diagnostic Services, INC. $12.05 2022

6 companies reported research payments only; those appear in the research section below.

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.

Research and ownership

$2,174.12 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.

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Payment summary

Colby Harold Grossman

$9,142.69

in general payments reported 2019-2025

Years
2019-2025
Top company
Eli Lilly and Company
Context
The $665 reported for 2025 was more than what 78% of Internal Medicine providers received nationally (typical 2025 total: $156).

https://glasscript.com/doctor/254483/colby-harold-grossman

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

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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.