John Garfield Polkinghorne, DDS
NPI 1215139639ActiveIndividual· Dentist· Edmond, OK
Opted out of Medicare from March 2016 to March 2028. Dentist (DDS) in Edmond, Oklahoma, licensed in OK, with an NPI issued in June 2007. Part D covered 56 prescriptions written in 2024, 100% of them generic. Align Technology, Inc. was the largest of 3 companies reporting payments in 2025, $49.67 in all, mostly food and beverage.
Overview
| NPI | 1215139639 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | Jun 5, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 4626 | OK |
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 Mar 28, 2016 – Mar 28, 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) | 56 · 62 30-day fills |
|---|---|
| Patients | 25 |
| Total drug cost | $553.06 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$49.67 · 4 payments from 3 companies
- 2024$328.28 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Align Technology, Inc. | $19.61 | 2 |
| Colgate Oral Pharmaceuticals, Inc. | $15.30 | 1 |
| Philips North America LLC | $14.76 | 1 |
What the 2025 payments were for
- Food and Beverage$34.37 · 3 payments
- Education$15.30 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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