Ji Seok Park, MD
NPI 1669994935ActiveIndividual· Internal Medicine· Cleveland, OH
Internal Medicine (MD) in Cleveland, Ohio, licensed in OH, with an NPI issued in July 2017. Their prescriptions cost Medicare Part D more than their services did: $58,008 for 43 claims, against $3,123 paid for services in 2024. Celltrion, Inc. was the largest of 4 companies reporting payments in 2025, $356.78 in all, mostly food and beverage.
Overview
| NPI | 1669994935 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 8, 2017 |
| Last updated in NPPES | Sep 26, 2020 |
| Certified by provider | Sep 26, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 35.138824 | OH |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Internal Medicine (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 48 across 3 procedure codes |
| Paid by Medicare | $3,123 |
Part D prescriptions in 2024
| Prescriptions (claims) | 43 · 54 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $58,008 |
| Generic share | 60% of claims |
Industry payments (Open Payments)
- 2025$356.78 · 6 payments from 4 companies
- 2024$116.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celltrion, Inc. | $150.00 | 1 |
| Phathom Pharmaceuticals, Inc. | $143.83 | 2 |
| Janssen Biotech, Inc. | $43.92 | 2 |
| Abbvie Inc. | $19.03 | 1 |
What the 2025 payments were for
- Food and Beverage$356.78 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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