Eun Joo Oh, MD
NPI 1558391672ActiveIndividual· Internal Medicine· Oro Valley, AZ
Internal Medicine (MD) with Oro Valley Adult Medicine PA LLC, practicing in Oro Valley, Arizona. Their prescriptions cost Medicare Part D more than their services did: $756,154 for 4,122 claims, against $56,536 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $646.35 in all, mostly food and beverage. Lists Northwest Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1558391672 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 4, 2006 |
| Last updated in NPPES | Jun 1, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 41023 | AZ |
| Internal Medicine, Geriatric Medicine | 207RG0300X | 41023 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 171 |
|---|---|
| Services billed | 1,010 across 16 procedure codes |
| Paid by Medicare | $56,536 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,122 · 9,718 30-day fills |
|---|---|
| Patients | 185 |
| Total drug cost | $756,154 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Oro Valley Adult Medicine PA LLCOro Valley, AZ · 2 clinicians
Hospital affiliations
- Northwest Medical CenterTucson, AZ
- Oro Valley HospitalOro Valley, AZ
- Tucson Medical CenterTucson, AZ
Industry payments (Open Payments)
- 2025$646.35 · 31 payments from 9 companies
- 2024$746.80 · 48 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $249.55 | 10 |
| Pfizer Inc. | $77.86 | 4 |
| Novartis Pharmaceuticals Corporation | $70.74 | 4 |
| Radius Health, Inc. | $67.20 | 3 |
| Amgen Inc. | $49.43 | 3 |
What the 2025 payments were for
- Food and Beverage$646.35 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 internal medicine physicians in Oro Valley · All internal medicine physicians in Arizona