Paul W. Watanakunakorn, M.D.
NPI 1275563462ActiveIndividual· Internal Medicine· Youngstown, OH
Internal Medicine (M.D.) in Youngstown, Ohio, trained at Northeastern Ohio University College of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $17,579 for 177 claims, against $5,046 paid for services in 2024. Organon LLC reported $19.15 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1275563462 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 3, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 35076990 | OH |
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 - Internal Medicine (CA); Practitioner - Internal Medicine (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 104 across 5 procedure codes |
| Paid by Medicare | $5,046 |
Part D prescriptions in 2024
| Prescriptions (claims) | 177 · 235 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $17,579 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Northeastern Ohio University College of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
Medical groups
- Musc Community PhysiciansCentennial, CO · 1,544 clinicians
- Porterville Community Physicians IncPorterville, CA · 7 clinicians
Hospital affiliations
- Musc Health Columbia Medical Center DowntownColumbia, SC
- Musc Medical CenterCharleston, SC
- Sierra View Medical CenterPorterville, CA
Industry payments (Open Payments)
- 2025$19.15 · 1 payment from 1 company
- 2024$56.49 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $19.15 | 1 |
What the 2025 payments were for
- Food and Beverage$19.15 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 159 internal medicine physicians in Youngstown · All internal medicine physicians in Ohio