Aaron Lee Haag, DO
NPI 1669934600ActiveIndividual· Internal Medicine· Hershey, PA
Internal Medicine (DO) in Hershey, Pennsylvania, trained at West Virginia School of Osteopathic Medicine (class of 2019). Part D covered 198 prescriptions written in 2024, 39% of them generic.
Overview
| NPI | 1669934600 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 1, 2019 |
| Last updated in NPPES | Jun 23, 2026 |
| Certified by provider | Jun 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | OS022136 | PA |
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 - Pulmonary Disease (PA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 198 · 235 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $184,846 |
| Generic share | 39% of claims |
Education and affiliations
| Medical school | West Virginia School of Osteopathic Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Pulmonary Disease |
Medical group
- The Milton S Hershey Medical Center Physicians GroupHershey, PA · 1,623 clinicians
Hospital affiliation
- Milton S Hershey Medical CenterHershey, PA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 126 internal medicine physicians in Hershey · All internal medicine physicians in Pennsylvania