Robert Langon Davison Jr., M.D.
NPI 1629031745ActiveIndividual· Internal Medicine· Waldorf, MD
Internal Medicine (M.D.) in Waldorf, Maryland, trained at Boston University School of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $447,971 for 6,994 claims, against $121,146 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $313.35 in all, mostly food and beverage.
Overview
| NPI | 1629031745 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2006 |
| Last updated in NPPES | Aug 18, 2026 |
| Certified by provider | Aug 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D40479 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 570 |
|---|---|
| Services billed | 3,385 across 59 procedure codes |
| Paid by Medicare | $121,146 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,994 · 14,690 30-day fills |
|---|---|
| Patients | 548 |
| Total drug cost | $447,971 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group - Southern Maryland LLCHollywood, MD · 245 clinicians
Other facilities
- Chesapeake - Potomac Home Health Agency, Inc.Home health agency · Hughesville, MD
- HomecallHome health agency · Easton, MD
- Medstar Health Home CareHome health agency · Hyattsville, MD
Industry payments (Open Payments)
- 2025$313.35 · 15 payments from 9 companies
- 2024$99.40 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $111.86 | 5 |
| Novo Nordisk Inc | $61.79 | 3 |
| Neurocrine Biosciences, Inc. | $24.42 | 1 |
| Lilly USA, LLC | $22.82 | 1 |
| Astrazeneca Pharmaceuticals LP | $22.16 | 1 |
What the 2025 payments were for
- Food and Beverage$313.35 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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