Walter J. Duffy, MD
NPI 1093853368ActiveIndividual· Psychiatry & Neurology, Psychiatry· Lincoln, NE
Psychiatry & Neurology, Psychiatry (MD) in Lincoln, Nebraska, trained at Vanderbilt University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $2,151,774 for 11,054 claims, against $236,314 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 17 companies reporting payments in 2025, $2,369 in all, mostly food and beverage.
Overview
| NPI | 1093853368 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 1, 2007 |
| Last updated in NPPES | Sep 12, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 18400 | NE |
| Psychiatry & Neurology, Child & Adolescent Psychiatry | 2084P0804X | 18400 | NE |
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 (NE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 292 |
|---|---|
| Services billed | 2,828 across 22 procedure codes |
| Paid by Medicare | $236,314 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,054 · 12,513 30-day fills |
|---|---|
| Patients | 473 |
| Total drug cost | $2,151,774 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Alivation Health LLCLincoln, NE · 14 clinicians
Hospital affiliation
- The Nebraska Medical CenterOmaha, NE
Industry payments (Open Payments)
- 2025$2,369 · 170 payments from 17 companies
- 2024$8,403 · 133 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $445.18 | 26 |
| Jazz Pharmaceuticals Inc. | $342.20 | 15 |
| Alkermes, Inc. | $302.76 | 34 |
| Axsome Therapeutics, Inc. | $297.77 | 30 |
| Otsuka America Pharmaceutical, Inc. | $290.61 | 18 |
What the 2025 payments were for
- Food and Beverage$2,269 · 169 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 psychiatrists in Lincoln · All psychiatrists in Nebraska