Marnin A. Merrick, MD
NPI 1114132818ActiveIndividual· Internal Medicine, Hematology & Oncology· New Orleans, LA
Internal Medicine, Hematology & Oncology (MD) in New Orleans, Louisiana, licensed in LA, KY and ND, with an NPI issued in May 2007. Mostly services rather than prescriptions: Medicare paid $40,278 for 112 patients in 2024, with only 21 Part D claims. Reflexion Medical, Inc. was the largest of 2 companies reporting payments in 2025, $71.07 in all, mostly food and beverage.
Overview
| NPI | 1114132818 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 14, 2007 |
| Last updated in NPPES | Apr 28, 2025 |
| Certified by provider | Apr 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD.202844 | LA |
| Radiology, Radiation Oncology | 2085R0001X | 41160 | KY |
| Radiology, Radiation Oncology | 2085R0001X | MD.202844 | LA |
| Radiology, Radiation Oncology | 2085R0001X | 13495 | ND |
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 - Radiation Oncology (KY); Practitioner - Radiation Oncology (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 112 |
|---|---|
| Services billed | 636 across 23 procedure codes |
| Paid by Medicare | $40,278 |
Part D prescriptions in 2024
| Prescriptions (claims) | 21 · 25 30-day fills |
|---|---|
| Total drug cost | $116.99 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$71.07 · 3 payments from 2 companies
- 2024$1,537 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Reflexion Medical, Inc. | $50.00 | 2 |
| Stemline Therapeutics Inc. | $21.07 | 1 |
What the 2025 payments were for
- Food and Beverage$71.07 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 hematologist-oncologists in New Orleans · All hematologist-oncologists in Louisiana