Donald Ryan Cook, DDS, MS
NPI 1518141456ActiveIndividual· Dentist· Greenville, NC
Opted out of Medicare from January 2025 to January 2027. Dentist (DDS, MS) in Greenville, North Carolina, licensed in CA and NC, with an NPI issued in December 2007. Part D covered 35 prescriptions written in 2024, 83% of them generic. Geistlich Pharma, North America, Inc. reported $116.35 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1518141456 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS, MS |
| Sole proprietor | Yes |
| NPI issued | Dec 27, 2007 |
| Last updated in NPPES | Aug 29, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 55571 | CA |
| Dentist, Periodontics | 1223P0300X | 9871 | NC |
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 10, 2025 – Jan 10, 2027 |
| 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) | 35 · 37 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $218.32 |
| Generic share | 83% of claims |
Industry payments (Open Payments)
- 2025$116.35 · 2 payments from 1 company
- 2024$1,450 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Geistlich Pharma, North America, Inc. | $116.35 | 2 |
What the 2025 payments were for
- Food and Beverage$116.35 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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