Andrew Zachary Williams, M.D.
NPI 1255479903ActiveIndividual· Psychiatry & Neurology, Child & Adolescent Psychiatry· New Orleans, LA
Psychiatry & Neurology, Child & Adolescent Psychiatry (M.D.) in New Orleans, Louisiana, trained at Michigan State University College of Human Medicine (class of 1996). 17 Medicare patients in 2024, $27,406 paid; nearly all of their 320 Part D prescriptions were generic (99%). Alkermes, Inc. reported $28.30 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1255479903 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 2, 2007 |
| Last updated in NPPES | Oct 17, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Child & Adolescent Psychiatry Primary | 2084P0804X | 200420 | LA |
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 (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 480 across 6 procedure codes |
| Paid by Medicare | $27,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 320 · 361 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $16,154 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical groups
- South Louisiana Medical AssociatesHouma, LA · 113 clinicians
- Life Coast Community Health Center IncThibodaux, LA · 7 clinicians
Hospital affiliation
- Leonard J Chabert Medical CenterHouma, LA
Industry payments (Open Payments)
- 2025$28.30 · 1 payment from 1 company
- 2024$157.04 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $28.30 | 1 |
What the 2025 payments were for
- Food and Beverage$28.30 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other child and adolescent psychiatrists in New Orleans
- 1306003504
- 1497048912
- 1528248671
- 1568921757
- 1669796678
- 1902989833
- 1912584368
- 1033418835
- 1104567502
- 1114218567
- 1114269792
- 1114942083
All 56 child and adolescent psychiatrists in New Orleans · All child and adolescent psychiatrists in Louisiana