Eunhye Oak, MD
NPI 1790305787ActiveIndividual· Psychiatry & Neurology, Neurology· Rapid City, SD
Psychiatry & Neurology, Neurology (MD) in Rapid City, South Dakota, trained at Washington University School of Medicine (class of 2020). Part D covered 39 prescriptions written in 2024, 85% of them generic. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 4 companies reporting payments in 2025, $405.31 in all, mostly food and beverage.
Overview
| NPI | 1790305787 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2020 |
| Last updated in NPPES | Sep 3, 2025 |
| Certified by provider | Sep 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 330191 | NY |
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 - Neurology (SD) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 39 · 54 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $5,955 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Neurology |
Medical group
- Monument Health Rapid City Hospital IncRapid City, SD · 564 clinicians
Hospital affiliations
- Fall River Hospital - CahHot Springs, SD
- Monument Health Custer HospitalCuster, SD
- Monument Health Rapid City HospitalRapid City, SD
- Monument Health Spearfish HospitalSpearfish, SD
- Monument Health Sturgis HospitalSturgis, SD
Industry payments (Open Payments)
- 2025$405.31 · 4 payments from 4 companies
- 2024$23.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $125.00 | 1 |
| Astrazeneca Pharmaceuticals LP | $125.00 | 1 |
| Argenx US, Inc. | $124.65 | 1 |
| Abbvie Inc. | $30.66 | 1 |
What the 2025 payments were for
- Food and Beverage$405.31 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 neurologists in Rapid City · All neurologists in South Dakota