John-Khoa Do, D.O.
NPI 1710908223ActiveIndividual· Internal Medicine· Downey, CA
Internal Medicine (D.O.) in Downey, California, licensed in CA, with an NPI issued in July 2006. Part D covered 7,640 prescriptions written in 2024, 85% of them generic. Lilly USA, LLC was the largest of 3 companies reporting payments in 2025, $351.55 in all, mostly food and beverage.
Overview
| NPI | 1710908223 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jul 21, 2006 |
| Last updated in NPPES | Aug 30, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A8905 | CA |
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 Order and Referring Only - Internal Medicine (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 7,640 · 16,631 30-day fills |
|---|---|
| Patients | 800 |
| Total drug cost | $862,410 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
- 2025$351.55 · 9 payments from 3 companies
- 2024$173.73 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $158.20 | 3 |
| Novo Nordisk Inc | $153.79 | 4 |
| Merck Sharp & Dohme LLC | $39.56 | 2 |
What the 2025 payments were for
- Food and Beverage$351.55 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 129 internal medicine physicians in Downey · All internal medicine physicians in California