Hyon Ju Park, MD
NPI 1083810048ActiveIndividual· Internal Medicine, Rheumatology· Wynnewood, PA
Internal Medicine, Rheumatology (MD) in Wynnewood, Pennsylvania, trained at Icahn School of Medicine at Mount Sinai (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $1,423,295 for 1,092 claims, against $661,903 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $4,049 in all, mostly food and beverage.
Overview
| NPI | 1083810048 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 26, 2007 |
| Last updated in NPPES | Jun 26, 2020 |
| Certified by provider | Jun 26, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | MD448227 | PA |
| Internal Medicine | 207R00000X | 2007017292 | MO |
| Internal Medicine, Rheumatology | 207RR0500X | C1-0011316 | DE |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (DE); Practitioner - Rheumatology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 298 |
|---|---|
| Services billed | 67,038 across 46 procedure codes |
| Paid by Medicare | $661,903 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,092 · 1,961 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $1,423,295 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- Bryn Mawr Medical Specialists AssociationBryn Mawr, PA · 134 clinicians
Hospital affiliations
- Bryn Mawr HospitalBryn Mawr, PA
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
- Main Line Hospital LankenauWynnewood, PA
- Paoli HospitalPaoli, PA
- Riddle Memorial HospitalMedia, PA
Industry payments (Open Payments)
- 2025$4,049 · 203 payments from 19 companies
- 2024$3,362 · 170 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $935.66 | 45 |
| Ucb, Inc. | $680.91 | 21 |
| Astrazeneca Pharmaceuticals LP | $633.10 | 49 |
| Amgen Inc. | $424.65 | 20 |
| Janssen Biotech, Inc. | $236.57 | 8 |
What the 2025 payments were for
- Food and Beverage$3,971 · 202 payments
- Education$77.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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