Wilson Tong, M.D.
NPI 1427261437ActiveIndividual· Internal Medicine, Hematology & Oncology· Antioch, CA
Internal Medicine, Hematology & Oncology (M.D.) in Antioch, California, trained at University of Arizona College of Medicine (class of 2007). In 2024 Medicare paid $2,147,445 for 460 patients, and Part D covered 928 of their prescriptions, 66% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 58 companies reporting payments in 2025, $6,359 in all, mostly food and beverage.
Overview
| NPI | 1427261437 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 7, 2007 |
| Last updated in NPPES | May 23, 2023 |
| Certified by provider | May 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A116219 | CA |
| Internal Medicine | 207R00000X | 40846 | AZ |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 460 |
|---|---|
| Services billed | 107,263 across 130 procedure codes |
| Paid by Medicare | $2,147,445 |
Part D prescriptions in 2024
| Prescriptions (claims) | 928 · 1,272 30-day fills |
|---|---|
| Patients | 169 |
| Total drug cost | $2,423,020 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Epic CareWalnut Creek, CA · 55 clinicians
Hospital affiliations
- Contra Costa Regional Medical CenterMartinez, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Sutter Delta Medical CenterAntioch, CA
Industry payments (Open Payments)
- 2025$6,359 · 277 payments from 58 companies
- 2024$4,679 · 209 payments from 51 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $712.17 | 38 |
| Merck Sharp & Dohme LLC | $424.47 | 16 |
| Janssen Biotech, Inc. | $405.55 | 17 |
| Pfizer Inc. | $310.49 | 15 |
| Genentech USA, Inc. | $255.88 | 10 |
What the 2025 payments were for
- Food and Beverage$6,242 · 275 payments
- Education$117.10 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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