Gregory K. An, DDS, MPH
NPI 1902870587ActiveIndividual· Dentist, Endodontics· Redwood City, CA
Dentist, Endodontics (DDS, MPH) in Redwood City, California, licensed in CA and MA, with an NPI issued in February 2006. Part D covered 154 prescriptions written in 2024, 99% of them generic. Envista Holdings Corporation reported $92.98 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1902870587 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS, MPH |
| Sole proprietor | No |
| NPI issued | Feb 13, 2006 |
| Last updated in NPPES | Jan 13, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, Endodontics Primary | 1223E0200X | 59088 | CA |
| Dentist, General Practice | 1223G0001X | 20019 | MA |
| Dentist, Pediatric Dentistry | 1223P0221X | 20019 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 154 · 154 30-day fills |
|---|---|
| Patients | 124 |
| Total drug cost | $1,155 |
| Generic share | 99% of claims |
Industry payments (Open Payments)
- 2024$92.98 · 2 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Envista Holdings Corporation | $92.98 | 2 |
What the 2024 payments were for
- Food and Beverage$92.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dentist, Endodontics providers in Redwood City
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