Nathan Alley-Byrd, MD
NPI 1558924274ActiveIndividual· Emergency Medicine· San Diego, CA
Emergency Medicine (MD) with Cook County, practicing in San Diego, California. Part D covered 21 prescriptions written in 2024, 95% of them generic. Lists John H Stroger Jr Hospital as a hospital affiliation.
Overview
| NPI | 1558924274 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 18, 2019 |
| Last updated in NPPES | Apr 24, 2025 |
| Certified by provider | Apr 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A181508 | CA |
| Military Health Care Provider | 171000000X | — | — |
| General Practice | 208D00000X | 01084351A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (IL) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 21 · 21 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $774.06 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical group
- Cook CountyChicago, IL · 788 clinicians
Hospital affiliation
- John H Stroger Jr HospitalChicago, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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