Ronald Ng, MD
NPI 1164957544ActiveIndividual· Internal Medicine, Medical Oncology· Portland, OR
Internal Medicine, Medical Oncology (MD) in Portland, Oregon, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $2,229,568 for 748 claims, against $43,037 paid for services in 2024. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $320.60 in all, mostly food and beverage.
Overview
| NPI | 1164957544 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 24, 2017 |
| Last updated in NPPES | Aug 8, 2023 |
| Certified by provider | Aug 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MD216878 | OR |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 125076227 | 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 - Medical Oncology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 803 across 16 procedure codes |
| Paid by Medicare | $43,037 |
Part D prescriptions in 2024
| Prescriptions (claims) | 748 · 900 30-day fills |
|---|---|
| Patients | 122 |
| Total drug cost | $2,229,568 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- University Professional ServicesBeaverton, OR · 1,724 clinicians
Hospital affiliations
- Adventist Health PortlandPortland, OR
- Ohsu Hospital and ClinicsPortland, OR
Industry payments (Open Payments)
- 2025$320.60 · 3 payments from 3 companies
- 2024$412.28 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $133.29 | 1 |
| Exelixis Inc. | $104.46 | 1 |
| Janssen Scientific Affairs, LLC | $82.85 | 1 |
What the 2025 payments were for
- Food and Beverage$320.60 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 77 medical oncologists in Portland · All medical oncologists in Oregon