Gary Michael Reiss, MD
NPI 1568666543ActiveIndividual· Internal Medicine, Gastroenterology· Marrero, LA
Internal Medicine, Gastroenterology (MD) in Marrero, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $339,394 for 2,589 claims, against $75,056 paid for services in 2024. Abbvie Inc. was the largest of 22 companies reporting payments in 2025, $1,988 in all, mostly food and beverage.
Overview
| NPI | 1568666543 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 13, 2007 |
| Last updated in NPPES | Aug 12, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD.200117 | 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 - Gastroenterology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 313 |
|---|---|
| Services billed | 871 across 66 procedure codes |
| Paid by Medicare | $75,056 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,589 · 4,357 30-day fills |
|---|---|
| Patients | 775 |
| Total drug cost | $339,394 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
- New Orleans Physician Services IncNew Orleans, LA · 178 clinicians
- Crescent City Physicians IncMetairie, LA · 154 clinicians
Hospital affiliations
- Ochsner Medical Center AcuteNew Orleans, LA
- Thibodaux Regional Medical CenterThibodaux, LA
- Touro InfirmaryNew Orleans, LA
- West Jefferson Medical CenterMarrero, LA
Industry payments (Open Payments)
- 2025$1,988 · 130 payments from 22 companies
- 2024$2,560 · 134 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $489.55 | 55 |
| Laborie Medical Technologies Corp. | $303.37 | 6 |
| Ardelyx, Inc. | $161.93 | 7 |
| Takeda Pharmaceuticals U.S.A., Inc. | $150.69 | 12 |
| Celltrion USA Inc. | $135.58 | 8 |
What the 2025 payments were for
- Food and Beverage$1,988 · 130 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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