Marcus Lonnell Davis, MD
NPI 1962813840ActiveIndividual· Emergency Medicine· Washington, DC
Emergency Medicine (MD) in Washington, District of Columbia, trained at Columbia University College of Physicians and Surgeons (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $179,993 for 1,356 claims, against $61,908 paid for services in 2024. Gilead Sciences, Inc. was the largest of 8 companies reporting payments in 2025, $603.48 in all, mostly food and beverage.
Overview
| NPI | 1962813840 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 14, 2014 |
| Last updated in NPPES | Nov 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MD047474 | DC |
| Family Medicine | 207Q00000X | MD047474 | DC |
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 (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 390 |
|---|---|
| Services billed | 1,016 across 75 procedure codes |
| Paid by Medicare | $61,908 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,356 · 2,827 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $179,993 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Family Practice |
Medical groups
- Medical Faculty Associates, IncWashington, DC · 672 clinicians
- Mid Atlantic Medicine LLCWashington, DC · 14 clinicians
- Foggy Bottom Physician Group Inc.Washington, DC · 6 clinicians
Hospital affiliation
- George Washington Univ HospitalWashington, DC
Industry payments (Open Payments)
- 2025$603.48 · 26 payments from 8 companies
- 2024$482.23 · 21 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $222.49 | 12 |
| Lilly USA, LLC | $95.56 | 4 |
| Pfizer Inc. | $87.49 | 4 |
| Abbvie Inc. | $61.78 | 2 |
| Dexcom, Inc. | $61.07 | 1 |
What the 2025 payments were for
- Food and Beverage$603.48 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 382 emergency medicine physicians in Washington · All emergency medicine physicians in District of Columbia