Michael Samuel Amster, MD
NPI 1821097478ActiveIndividual· Pediatrics· Warrenton, VA
Pediatrics (MD) in Warrenton, Virginia, licensed in VA, with an NPI issued in July 2005. Alk-Abello, Inc was the largest of 7 companies reporting payments in 2025, $347.52 in all, mostly food and beverage.
Overview
| NPI | 1821097478 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 17, 2005 |
| Last updated in NPPES | Aug 13, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | 0101231776 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 |
|---|
Industry payments (Open Payments)
- 2025$347.52 · 15 payments from 7 companies
- 2024$252.55 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alk-Abello, Inc | $81.50 | 3 |
| Merck Sharp & Dohme LLC | $57.21 | 2 |
| Corium, LLC | $53.51 | 2 |
| Supernus Pharmaceuticals, Inc. | $42.89 | 2 |
| Pfizer Inc. | $40.54 | 2 |
What the 2025 payments were for
- Food and Beverage$347.52 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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