Joe Blair Castles III, M.D.
NPI 1508961442ActiveIndividual· Pediatrics· Columbia, SC
Pediatrics (M.D.) in Columbia, South Carolina, licensed in SC, with an NPI issued in September 2006. Part D covered 19 prescriptions written in 2024, 68% of them generic. Kowa Pharmaceuticals America, Inc. was the largest of 9 companies reporting payments in 2025, $549.32 in all, mostly food and beverage.
Overview
| NPI | 1508961442 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 14, 2006 |
| Last updated in NPPES | Jan 12, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | 22534 | SC |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 20 30-day fills |
|---|---|
| Total drug cost | $2,675 |
| Generic share | 68% of claims |
Industry payments (Open Payments)
- 2025$549.32 · 53 payments from 9 companies
- 2024$440.72 · 24 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kowa Pharmaceuticals America, Inc. | $219.48 | 36 |
| Supernus Pharmaceuticals, Inc. | $130.03 | 6 |
| Alk-Abello, Inc | $58.01 | 3 |
| Sanofi-Aventis U.S. LLC | $49.13 | 2 |
| Pfizer Inc. | $28.58 | 1 |
What the 2025 payments were for
- Food and Beverage$549.32 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 177 pediatricians in Columbia · All pediatricians in South Carolina