Oliver Shu-On Tai, MD
NPI 1699885731ActiveIndividual· Internal Medicine, Nephrology· Everett, WA
Internal Medicine, Nephrology (MD) in Everett, Washington, trained at Duke University School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $951,207 for 3,801 claims, against $173,309 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 10 companies reporting payments in 2025, $295.91 in all, mostly food and beverage.
Overview
| NPI | 1699885731 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Nov 26, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD00042454 | 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 | 382 |
|---|---|
| Services billed | 2,151 across 30 procedure codes |
| Paid by Medicare | $173,309 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,801 · 9,264 30-day fills |
|---|---|
| Patients | 436 |
| Total drug cost | $951,207 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Nephrology |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Snokidney PLLCEverett, WA · 11 clinicians
Hospital affiliations
- Providence Regional Medical Center EverettEverett, WA
- Skagit Valley HospitalMount Vernon, WA
Other facilities
- Davita Everett Dialysis CenterDialysis facility · Everett, WA
- Davita Mill Creek Dialysis CenterDialysis facility · Bothell, WA
- Davita Pilchuck DialysisDialysis facility · Marysville, WA
- Puget Sound Kc SouthDialysis facility · Mountlake Terrace, WA
- Puget Sound Kidney Center - MonroeDialysis facility · Monroe, WA
Industry payments (Open Payments)
- 2025$295.91 · 13 payments from 10 companies
- 2024$227.56 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $46.83 | 2 |
| Novartis Pharmaceuticals Corporation | $45.73 | 2 |
| Astrazeneca Pharmaceuticals LP | $42.28 | 2 |
| Lilly USA, LLC | $33.55 | 1 |
| Merck Sharp & Dohme LLC | $30.86 | 1 |
What the 2025 payments were for
- Food and Beverage$295.91 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 nephrologists in Everett · All nephrologists in Washington