Mark Hershel Eig, M.D.
NPI 1043377880ActiveIndividual· Internal Medicine· Silver Spring, MD
Opted out of Medicare from January 2013 to January 2027. Internal Medicine (M.D.) in Silver Spring, Maryland, licensed in MD, with an NPI issued in January 2007. Part D covered 187 prescriptions written in 2024, 81% of them generic. Novo Nordisk Inc reported $248.43 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1043377880 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 2, 2007 |
| Last updated in NPPES | May 7, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D024886 | MD |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Jan 1, 2013 – Jan 1, 2027 |
| Can order and refer | No |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 187 · 359 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $30,408 |
| Generic share | 81% of claims |
Industry payments (Open Payments)
- 2025$248.43 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $248.43 | 3 |
What the 2025 payments were for
- Food and Beverage$248.43 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Silver Spring
- 1003896234
- 1003918228
- 1003997479
- 1013538248
- 1023145554
- 1033452651
- 1063707883
- 1073891768
- 1093789869
- 1144660978
- 1205190840
- 1205918802
All 258 internal medicine physicians in Silver Spring · All internal medicine physicians in Maryland