Russell Ming Wei Leong, DO
NPI 1881253730ActiveIndividual· Internal Medicine, Nephrology· Olympia, WA
Internal Medicine, Nephrology (DO) in Olympia, Washington, trained at Michigan State University College of Osteopathic Medicine (class of 2019). 140 Medicare patients in 2024, $40,982 paid; nearly all of their 140 Part D prescriptions were generic (91%). Amgen Inc. reported $68.85 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1881253730 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 12, 2019 |
| Last updated in NPPES | Sep 25, 2024 |
| Certified by provider | Sep 25, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | OP61513037 | WA |
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 - Nephrology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 418 across 22 procedure codes |
| Paid by Medicare | $40,982 |
Part D prescriptions in 2024
| Prescriptions (claims) | 140 · 269 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $15,142 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Memorial Nephrology Associates PLLCOlympia, WA · 9 clinicians
Hospital affiliations
- Grays Harbor Community HospitalAberdeen, WA
- Mason General Hospital & Family of ClinicsShelton, WA
- Providence Centralia HospitalCentralia, WA
- Providence St Peter HospitalOlympia, WA
- Tacoma General Allenmore HospitalTacoma, WA
Other facilities
- Davita Lacey DialysisDialysis facility · Lacey, WA
- Davita Mason County Dialysis CenterDialysis facility · Shelton, WA
- Fmc AberdeenDialysis facility · Aberdeen, WA
- Fmc ChehalisDialysis facility · Chehalis, WA
- Fmc SheltonDialysis facility · Shelton, WA
Industry payments (Open Payments)
- 2025$68.85 · 1 payment from 1 company
- 2024$162.54 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $68.85 | 1 |
What the 2025 payments were for
- Food and Beverage$68.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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