Darren M. Kowalski, M.D.
NPI 1598859076ActiveIndividual· Surgery· Bend, OR
Surgery (M.D.) in Bend, Oregon, trained at Oregon Health Sciences University School of Medicine (class of 1996). In 2024 Medicare paid $178,379 for 804 patients, and Part D covered 121 of their prescriptions, 83% of them generic. E.R. Squibb & Sons, L.L.C. reported $20.13 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1598859076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 2, 2006 |
| Last updated in NPPES | Apr 6, 2021 |
| Certified by provider | Apr 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | MD22898 | OR |
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) | Enrolled Practitioner - General Surgery (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 804 |
|---|---|
| Services billed | 1,181 across 97 procedure codes |
| Paid by Medicare | $178,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 121 · 121 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $3,465 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | General Surgery |
Medical group
- Bend Memorial Clinic PCBend, OR · 221 clinicians
Hospital affiliation
- St Charles Medical Center - BendBend, OR
Industry payments (Open Payments)
- 2025$20.13 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $20.13 | 1 |
What the 2025 payments were for
- Food and Beverage$20.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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