Damian Mercier, MD
NPI 1396364519ActiveIndividual· Internal Medicine· Oxford, MS
Internal Medicine (MD) in Oxford, Mississippi, trained at University of Mississippi School of Medicine (class of 2020). In 2024 Medicare paid $94,781 for 531 patients, and Part D covered 412 of their prescriptions, 87% of them generic. Bayer Healthcare Pharmaceuticals Inc. was the largest of 4 companies reporting payments in 2025, $88.45 in all, mostly food and beverage.
Overview
| NPI | 1396364519 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 9, 2020 |
| Last updated in NPPES | Aug 10, 2023 |
| Certified by provider | Aug 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 31111 | MS |
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 - Internal Medicine (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 531 |
|---|---|
| Services billed | 1,313 across 44 procedure codes |
| Paid by Medicare | $94,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 412 · 558 30-day fills |
|---|---|
| Patients | 157 |
| Total drug cost | $42,658 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Internal Medicine |
Medical groups
- Baptist Memorial Medical Group, Inc.Germantown, TN · 576 clinicians
- Comprehensive Hospitalists of Ms, LLCOxford, MS · 37 clinicians
Hospital affiliation
- Baptist Memorial Hospital North MsOxford, MS
Other facilities
- Baptist Home Care and Hospice North MississippiHome health agency · Batesville, MS
Industry payments (Open Payments)
- 2025$88.45 · 5 payments from 4 companies
- 2024$50.34 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $34.33 | 2 |
| Merck Sharp & Dohme LLC | $20.96 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $20.18 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $12.98 | 1 |
What the 2025 payments were for
- Food and Beverage$88.45 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Oxford · All internal medicine physicians in Mississippi