Greg E. Halliday, PA-C
NPI 1366431918ActiveIndividual· Physician Assistant· Logan, UT
Physician Assistant (PA-C) with Ihc Health Services Inc, practicing in Logan, Utah. Their prescriptions cost Medicare Part D more than their services did: $1,456,750 for 8,733 claims, against $58,666 paid for services in 2024. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $427.16 in all, mostly food and beverage. Lists Intermountain Health Logan Regional Hospital as a hospital affiliation.
Overview
| NPI | 1366431918 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 17, 2005 |
| Last updated in NPPES | Nov 11, 2025 |
| Certified by provider | Nov 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 3086482-1206 | UT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (UT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 508 |
|---|---|
| Services billed | 1,675 across 33 procedure codes |
| Paid by Medicare | $58,666 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,733 · 23,663 30-day fills |
|---|---|
| Patients | 1,251 |
| Total drug cost | $1,456,750 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Ihc Health Services IncMurray, UT · 3,960 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$427.16 · 28 payments from 7 companies
- 2024$672.84 · 47 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $159.47 | 8 |
| E.R. Squibb & Sons, L.L.C. | $136.27 | 13 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $52.08 | 3 |
| Regeneron Healthcare Solutions, Inc. | $25.69 | 1 |
| Alnylam Pharmaceuticals Inc. | $22.68 | 1 |
What the 2025 payments were for
- Food and Beverage$427.16 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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