Greta F. O'Buch, PA-C
NPI 1689782989ActiveIndividual· Physician Assistant· Asheboro, NC
Physician Assistant (PA-C) with American Healthcare Systems LLC, practicing in Asheboro, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $701,244 for 5,878 claims, against $23,594 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 25 companies reporting payments in 2025, $1,797 in all, mostly food and beverage. Lists Randolph Hospital as a hospital affiliation.
Overview
| NPI | 1689782989 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Aug 27, 2006 |
| Last updated in NPPES | Aug 13, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 103764 | NC |
| Internal Medicine | 207R00000X | 103764 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 66 |
|---|---|
| Services billed | 720 across 22 procedure codes |
| Paid by Medicare | $23,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,878 · 11,126 30-day fills |
|---|---|
| Patients | 305 |
| Total drug cost | $701,244 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- American Healthcare Systems LLCAsheboro, NC · 68 clinicians
Hospital affiliation
- Randolph HospitalAsheboro, NC
Industry payments (Open Payments)
- 2025$1,797 · 104 payments from 25 companies
- 2024$1,687 · 87 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $268.90 | 18 |
| Novo Nordisk Inc | $260.19 | 16 |
| Abbvie Inc. | $210.19 | 13 |
| Pfizer Inc. | $156.28 | 9 |
| Indivior Inc. | $116.78 | 4 |
What the 2025 payments were for
- Food and Beverage$1,797 · 104 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 physician assistants in Asheboro · All physician assistants in North Carolina