Byron Williams, M.D.
NPI 1295790319ActiveIndividual· Internal Medicine, Infectious Disease· Glendale, CA
Internal Medicine, Infectious Disease (M.D.) in Glendale, California, trained at Howard University College of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $635,496 for 558 claims, against $49,898 paid for services in 2024. Shionogi Inc was the largest of 4 companies reporting payments in 2025, $176.19 in all, mostly food and beverage.
Overview
| NPI | 1295790319 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 20, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | G76616 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 246 |
|---|---|
| Services billed | 540 across 9 procedure codes |
| Paid by Medicare | $49,898 |
Part D prescriptions in 2024
| Prescriptions (claims) | 558 · 655 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $635,496 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- White Memorial Medical CenterLos Angeles, CA · 74 clinicians
- Antaki and Associates Infectious Disease Medical Group IncGlendale, CA · 7 clinicians
Hospital affiliation
- Adventist Health White MemorialLos Angeles, CA
Industry payments (Open Payments)
- 2025$176.19 · 7 payments from 4 companies
- 2024$217.87 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shionogi Inc | $93.96 | 4 |
| Gilead Sciences, Inc. | $33.04 | 1 |
| Abbvie Inc. | $29.20 | 1 |
| Viiv Healthcare Company | $19.99 | 1 |
What the 2025 payments were for
- Food and Beverage$176.19 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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