Donald K. Yang, MD
NPI 1023037306ActiveIndividual· Internal Medicine, Gastroenterology· Springfield, OR
Internal Medicine, Gastroenterology (MD) in Springfield, Oregon, trained at Perelman School of Med at the University of Pennsylvania (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $440,119 for 1,285 claims, against $55,614 paid for services in 2024. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $307.49 in all, mostly food and beverage.
Overview
| NPI | 1023037306 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Dec 9, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD24898 | OR |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 276 |
|---|---|
| Services billed | 655 across 35 procedure codes |
| Paid by Medicare | $55,614 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,285 · 1,853 30-day fills |
|---|---|
| Patients | 590 |
| Total drug cost | $440,119 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Eugene Gastroenterology Consultants PCSpringfield, OR · 16 clinicians
Hospital affiliations
- Bay Area HospitalCoos Bay, OR
- Mercy Medical CenterRoseburg, OR
- Sacred Heart Medical Center - RiverbendSpringfield, OR
Industry payments (Open Payments)
- 2025$307.49 · 12 payments from 8 companies
- 2024$251.34 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $78.55 | 3 |
| Janssen Biotech, Inc. | $44.66 | 2 |
| Madrigal Pharmaceuticals | $35.97 | 1 |
| Genzyme Corporation | $35.43 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $34.43 | 1 |
What the 2025 payments were for
- Food and Beverage$307.49 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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