Melissa A. McKenzie, DO
NPI 1861450876ActiveIndividual· Psychiatry & Neurology, Neurology· Eureka, CA
Psychiatry & Neurology, Neurology (DO) in Eureka, California, trained at Michigan State University College of Osteopathic Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $712,538 for 2,415 claims, against $127,000 paid for services in 2024. Genentech USA, Inc. was the largest of 3 companies reporting payments in 2025, $115.67 in all, mostly food and beverage.
Overview
| NPI | 1861450876 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Nov 8, 2021 |
| Certified by provider | Nov 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 20A8768 | CA |
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) | Enrolled Practitioner - Neurology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 644 |
|---|---|
| Services billed | 6,304 across 48 procedure codes |
| Paid by Medicare | $127,000 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,415 · 4,286 30-day fills |
|---|---|
| Patients | 289 |
| Total drug cost | $712,538 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Jerold Phelps Community HospitalGarberville, CA
- Mad River Community HospitalArcata, CA
- Providence St Joseph HospitalEureka, CA
- Sutter Coast HospitalCrescent City, CA
Industry payments (Open Payments)
- 2025$115.67 · 4 payments from 3 companies
- 2024$84.55 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $51.25 | 2 |
| Argenx US, Inc. | $35.19 | 1 |
| Amgen Inc. | $29.23 | 1 |
What the 2025 payments were for
- Food and Beverage$115.67 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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