David Sokoyoon Chung, MD
NPI 1851362974ActiveIndividual· Internal Medicine, Gastroenterology· Torrance, CA
Internal Medicine, Gastroenterology (MD) in Torrance, California, trained at Medical College of Wisconsin (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $228,547 for 981 claims, against $77,470 paid for services in 2024. Janssen Biotech, Inc. was the largest of 9 companies reporting payments in 2025, $1,498 in all, mostly food and beverage.
Overview
| NPI | 1851362974 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 27, 2006 |
| Last updated in NPPES | Sep 26, 2024 |
| Certified by provider | Sep 26, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A74862 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 265 |
|---|---|
| Services billed | 789 across 40 procedure codes |
| Paid by Medicare | $77,470 |
Part D prescriptions in 2024
| Prescriptions (claims) | 981 · 1,584 30-day fills |
|---|---|
| Patients | 324 |
| Total drug cost | $228,547 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Digestive Care ConsultantsTorrance, CA · 15 clinicians
Hospital affiliations
- Providence Little Company of Mary Med Ctr TorranceTorrance, CA
- Torrance Memorial Medical CenterTorrance, CA
Industry payments (Open Payments)
- 2025$1,498 · 31 payments from 9 companies
- 2024$719.22 · 34 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $767.37 | 6 |
| Abbvie Inc. | $223.05 | 11 |
| Depuy Synthes Sales Inc. | $145.12 | 1 |
| Pfizer Inc. | $102.76 | 4 |
| Olympus America Inc. | $100.00 | 1 |
What the 2025 payments were for
- Food and Beverage$843.72 · 29 payments
- Travel and Lodging$554.93 · 1 payment
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 gastroenterologists in Torrance · All gastroenterologists in California