David K. Yoon, M.D.
NPI 1124023031ActiveIndividual· Internal Medicine, Gastroenterology· Beloit, WI
Internal Medicine, Gastroenterology (M.D.) in Beloit, Wisconsin, trained at State University of Ny Upstate Medical University (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $174,724 for 1,426 claims, against $57,709 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $4,233 in all, mostly food and beverage.
Overview
| NPI | 1124023031 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2005 |
| Last updated in NPPES | May 10, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 67284-20 | WI |
| Internal Medicine, Gastroenterology | 207RG0100X | 036109068 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (IL); Practitioner - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 257 |
|---|---|
| Services billed | 807 across 35 procedure codes |
| Paid by Medicare | $57,709 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,426 · 3,052 30-day fills |
|---|---|
| Patients | 457 |
| Total drug cost | $174,724 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | State University of Ny Upstate Medical University |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
Medical group
- Beloit Health System IncBeloit, WI · 135 clinicians
Hospital affiliation
- Beloit Health SystemBeloit, WI
Industry payments (Open Payments)
- 2025$4,233 · 123 payments from 17 companies
- 2024$4,647 · 141 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $891.95 | 28 |
| Madrigal Pharmaceuticals | $613.28 | 18 |
| Takeda Pharmaceuticals U.S.A., Inc. | $380.47 | 15 |
| Lilly USA, LLC | $374.40 | 11 |
| Gilead Sciences, Inc. | $350.84 | 13 |
What the 2025 payments were for
- Food and Beverage$4,233 · 123 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Beloit
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- 1528076353
- 1477549699