Glenn O. Archibald, MD
NPI 1316947450ActiveIndividual· Psychiatry & Neurology, Psychiatry· Huntsville, AL
Psychiatry & Neurology, Psychiatry (MD) with Grayson and Associates PC and 1 other group, practicing in Huntsville, Alabama. Their prescriptions cost Medicare Part D more than their services did: $1,975,309 for 11,699 claims, against $36,882 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 21 companies reporting payments in 2025, $4,857 in all, mostly food and beverage.
Overview
| NPI | 1316947450 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 29, 2005 |
| Last updated in NPPES | Oct 29, 2025 |
| Certified by provider | Oct 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 16043 | AL |
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 (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 643 across 9 procedure codes |
| Paid by Medicare | $36,882 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,699 · 15,679 30-day fills |
|---|---|
| Patients | 520 |
| Total drug cost | $1,975,309 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Psychiatry |
| Secondary specialties | Addiction Medicine |
Medical groups
- Grayson and Associates PCBirmingham, AL · 64 clinicians
- AIDS Action Coalition of HuntsvilleHuntsville, AL · 10 clinicians
Industry payments (Open Payments)
- 2025$4,857 · 226 payments from 21 companies
- 2024$4,848 · 211 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $677.48 | 25 |
| Otsuka America Pharmaceutical, Inc. | $575.44 | 25 |
| Alkermes, Inc. | $477.59 | 18 |
| Teva Pharmaceuticals USA, Inc. | $459.17 | 23 |
| Abbvie Inc. | $377.05 | 36 |
What the 2025 payments were for
- Food and Beverage$4,746 · 225 payments
- Education$111.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 51 psychiatrists in Huntsville · All psychiatrists in Alabama