Dima Dandachi, MD
Internal Medicine · Columbia, MONPI 1235486705
Payments from drug & device makers
Across 390 payments — averaging $3109.93 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$431K
- Mannkind Corporation$320K
- Viiv Healthcare Company$236K
- Dompe Farmaceutici S.p.a.$125K
- GSK$74K
- AstraZeneca$28K
- plus $29 from 2 others
Across 2 payments — averaging $360.19 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Viiv Healthcare Company$558
- GSK$162
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Gilead | 103 | $430,824 |
| Mannkind Corporation | 21 | $319,896 |
| Viiv Healthcare Company | 136 | $235,550 |
| Dompe Farmaceutici S.p.a. | 104 | $124,911 |
| GSK | 22 | $74,134 |
| AstraZeneca | 2 | $27,530 |
| AbbVie | 1 | $16 |
| Shionogi Inc | 1 | $13 |
How this compares
$1,212,873 in reported general payments places this provider in the 95th percentile of 2,097 internal medicine providers in Missouri.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other internal medicine in Columbia
- Puja NistalaColumbia$235K
- Syed NaqviColumbia$139K
- Donald DelwoodColumbia$84K
- Timothy SmithSaint Peters$21.4M
- Craig DietzKansas City$4M
- Michael ReschakSaint Louis$3.1M
- Santosh SharmaKansas City$782K
- Jianbo WangChesterfield$643K
- David PrelutskySaint Louis$575K
- Danish JabbarSaint Louis$510K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.