Hallie St John Brown, MD
NPI 1447742812ActiveIndividual· Internal Medicine, Critical Care Medicine· Stanford, CA
Internal Medicine, Critical Care Medicine (MD) in Stanford, California, trained at University of New Mexico School of Medicine (class of 2018). Medicare paid $53,643 for services to 223 patients in 2024.
Overview
| NPI | 1447742812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 1, 2018 |
| Last updated in NPPES | Mar 14, 2024 |
| Certified by provider | Mar 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A174029 | CA |
| Emergency Medicine | 207P00000X | A174029 | 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 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 - Critical Care (Intensivists) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 223 |
|---|---|
| Services billed | 342 across 13 procedure codes |
| Paid by Medicare | $53,643 |
Education and affiliations
| Medical school | University of New Mexico School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Emergency Medicine |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
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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