Gregory Sterling Allen, DDS
NPI 1326112160ActiveIndividual· Dentist, General Practice· Princess Anne, MD
Opted out of Medicare from January 2016 to January 2028. Dentist, General Practice (DDS) in Princess Anne, Maryland, licensed in MD, with an NPI issued in November 2006. Part D covered 69 prescriptions written in 2024, 88% of them generic.
Overview
| NPI | 1326112160 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | Nov 20, 2006 |
| Last updated in NPPES | May 6, 2026 |
| Certified by provider | May 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, General Practice Primary | 1223G0001X | 12030 | MD |
| Dentist | 122300000X | 12030 | 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 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 |
|---|---|
| Opt-out | Opted out Jan 12, 2016 – Jan 12, 2028 |
| Can order and refer | Yes |
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) | 69 · 69 30-day fills |
|---|---|
| Patients | 41 |
| Total drug cost | $315.68 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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