Andrea L. Hrehocik, PAC
NPI 1659346724ActiveIndividual· Physician Assistant· Hampstead, MD
Physician Assistant (PAC) with Shawn Dhillon MD PC, practicing in Hampstead, Maryland. Part D covered 2,121 prescriptions written in 2024, 88% of them generic. Amgen Inc. was the largest of 20 companies reporting payments in 2025, $2,101 in all, mostly food and beverage. Lists Medstar Union Memorial Hospital as a hospital affiliation.
Overview
| NPI | 1659346724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Feb 21, 2006 |
| Last updated in NPPES | Apr 12, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | C0002831 | — |
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 - Physician Assistant (MD) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 2,121 · 3,499 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $251,503 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Shawn Dhillon MD PCBaltimore, MD · 3 clinicians
Hospital affiliation
- Medstar Union Memorial HospitalBaltimore, MD
Industry payments (Open Payments)
- 2025$2,101 · 116 payments from 20 companies
- 2024$1,738 · 96 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $534.23 | 24 |
| Astrazeneca Pharmaceuticals LP | $286.53 | 23 |
| Novo Nordisk Inc | $219.86 | 18 |
| Novartis Pharmaceuticals Corporation | $163.67 | 5 |
| Astellas Pharma US Inc | $139.39 | 9 |
What the 2025 payments were for
- Food and Beverage$2,082 · 115 payments
- Education$18.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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