Greg Edward Parker, M.D.
NPI 1255502316ActiveIndividual· Emergency Medicine· Hammond, LA
Emergency Medicine (M.D.) in Hammond, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2006). 279 Medicare patients in 2024, $37,003 paid; nearly all of their 400 Part D prescriptions were generic (94%). Ethicon US, LLC was the largest of 4 companies reporting payments in 2025, $117.82 in all, mostly food and beverage.
Overview
| NPI | 1255502316 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 17, 2008 |
| Last updated in NPPES | Sep 25, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MD.202505 | LA |
| Emergency Medicine | 207P00000X | PGY-2 PERMIT | LA |
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 - Emergency Medicine (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 279 |
|---|---|
| Services billed | 375 across 16 procedure codes |
| Paid by Medicare | $37,003 |
Part D prescriptions in 2024
| Prescriptions (claims) | 400 · 424 30-day fills |
|---|---|
| Patients | 250 |
| Total drug cost | $4,066 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Emergency Medicine |
Medical group
- Hancock Emergency Group LLCBay Saint Louis, MS · 27 clinicians
Hospital affiliation
- Ochsner Medical Center-HancockBay Saint Louis, MS
Industry payments (Open Payments)
- 2025$117.82 · 5 payments from 4 companies
- 2024$16.79 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $78.24 | 2 |
| Xeris Pharmaceuticals, Inc. | $21.68 | 1 |
| Astrazeneca Pharmaceuticals LP | $13.65 | 1 |
| Phathom Pharmaceuticals, Inc. | $4.25 | 1 |
What the 2025 payments were for
- Food and Beverage$117.82 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 37 emergency medicine physicians in Hammond · All emergency medicine physicians in Louisiana