Aaron R. Welk, D.M.D.
NPI 1780685503ActiveIndividual· Dentist, Endodontics· Tualatin, OR
Dentist, Endodontics (D.M.D.) in Tualatin, Oregon, licensed in OR, with an NPI issued in August 2005. Part D covered 11 prescriptions written in 2024, 100% of them generic. Hu-Friedy Mfg. Co., LLC was the largest of 4 companies reporting payments in 2025, $763.26 in all, mostly education.
Overview
| NPI | 1780685503 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 2, 2005 |
| Last updated in NPPES | Sep 18, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, Endodontics Primary | 1223E0200X | D7507 | OR |
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 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 11 · 11 30-day fills |
|---|---|
| Total drug cost | $37.27 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$763.26 · 6 payments from 4 companies
- 2024$67.20 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hu-Friedy Mfg. Co., LLC | $589.61 | 3 |
| A-Dec, Inc. | $100.00 | 1 |
| Septodont Inc. | $58.83 | 1 |
| Dentsply Sirona Inc | $14.82 | 1 |
What the 2025 payments were for
- Education$589.61 · 3 payments
- Gift$100.00 · 1 payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$58.83 · 1 payment
- Food and Beverage$14.82 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other endodontists in Tualatin
- 1902017130
- 1952012635