Donna Gail McKenzie, M.D.
NPI 1841209715ActiveIndividual· Psychiatry & Neurology, Psychiatry· Knoxville, TN
Psychiatry & Neurology, Psychiatry (M.D.) in Knoxville, Tennessee, trained at East Tennessee State University Quillen College of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $24,802 for 510 claims, against $4,708 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 4 companies reporting payments in 2025, $95.38 in all, mostly food and beverage.
Overview
| NPI | 1841209715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 7, 2006 |
| Last updated in NPPES | Oct 2, 2024 |
| Certified by provider | Oct 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 33975 | TN |
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 - Psychiatry (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 71 across 4 procedure codes |
| Paid by Medicare | $4,708 |
Part D prescriptions in 2024
| Prescriptions (claims) | 510 · 526 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $24,802 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | East Tennessee State University Quillen College of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Psychiatry |
Medical group
- Family Dynamics Behavioral Health LLCKnoxville, TN · 2 clinicians
Hospital affiliation
- Parkwest Medical CenterKnoxville, TN
Industry payments (Open Payments)
- 2025$95.38 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $37.44 | 2 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $21.76 | 1 |
| Janssen Pharmaceuticals, Inc | $21.64 | 1 |
| Vanda Pharmaceuticals Inc. | $14.54 | 1 |
What the 2025 payments were for
- Food and Beverage$95.38 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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