Melissa S. Defreest, MD
NPI 1407960388ActiveIndividual· Emergency Medicine· Eugene, OR
Emergency Medicine (MD) in Eugene, Oregon, trained at Oregon Health Sciences University School of Medicine (class of 2003). 47 Medicare patients in 2024, $5,194 paid; nearly all of their 140 Part D prescriptions were generic (99%).
Overview
| NPI | 1407960388 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 18, 2006 |
| Last updated in NPPES | May 7, 2026 |
| Certified by provider | May 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MD41141 | 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 - Emergency Medicine (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 135 across 29 procedure codes |
| Paid by Medicare | $5,194 |
Part D prescriptions in 2024
| Prescriptions (claims) | 140 · 155 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $1,302 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Peacehealth Medical GroupEugene, OR · 255 clinicians
- Oregon Healthcare Resources LLCSpringfield, OR · 159 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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