Koushik Kumar Das, MD
NPI 1023245859ActiveIndividual· Internal Medicine, Gastroenterology· Saint Louis, MO
Internal Medicine, Gastroenterology (MD) in Saint Louis, Missouri, trained at Columbia University College of Physicians and Surgeons (class of 2009). In 2024 Medicare paid $77,113 for 332 patients, and Part D covered 359 of their prescriptions, 82% of them generic. Olympus America Inc. was the largest of 6 companies reporting payments in 2025, $30,073 in all, mostly consulting fees.
Overview
| NPI | 1023245859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2009 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 2016013228 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 332 |
|---|---|
| Services billed | 632 across 48 procedure codes |
| Paid by Medicare | $77,113 |
Part D prescriptions in 2024
| Prescriptions (claims) | 359 · 542 30-day fills |
|---|---|
| Patients | 211 |
| Total drug cost | $44,011 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Memorial HospitalBelleville, IL
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$30,073 · 51 payments from 6 companies
- 2024$1,722 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus America Inc. | $18,240 | 22 |
| Olympus Corporation of the Americas | $10,771 | 21 |
| Olympus Corporation | $550.00 | 1 |
| Boston Scientific Corporation | $347.42 | 5 |
| Steris Corporation | $92.23 | 1 |
What the 2025 payments were for
- Consulting Fee$13,475 · 9 payments
- Education$9,350 · 4 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,850 · 2 payments
- Travel and Lodging$2,440 · 18 payments
- Food and Beverage$957.76 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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