Quick answers
- Which hospitals does Daniel Hsu work at?
- Medicare's official clinician data lists Daniel Hsu at 3 hospitals: Ascension St Vincent Clay, Ascension St Vincent Hospital and St Marys Healthcare. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel Hsu see patients?
- Medicare's clinician data lists 2 practice locations, including Saint Louis, MO and Terre Haute, IN. Call before your visit to confirm the address.
- What is Daniel Hsu's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Daniel Hsu accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel Hsu accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Daniel Hsu?
- (314) 664-9100, as listed in official Medicare / NPI Registry data.
- What is Daniel Hsu's NPI number?
- 1437642121. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel Hsu works
Medicare's Facility Affiliation Data lists Daniel Hsu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St Vincent ClayBrazil, IN · Critical Access Hospital · CCN 151309
- Ascension St Vincent HospitalIndianapolis, IN · Acute Care Hospital · CCN 150084
- St Marys HealthcareAmsterdam, NY · Acute Care Hospital · CCN 330047
Practice locations
Addresses where Daniel Hsu is enrolled with Medicare (CMS data updated 2026-10-02).
- 1320 N Jefferson Ave, VituitySaint Louis, MO 63106 (314) 664‑9100
- 1606 N 7th StTerre Haute, IN 47804 (812) 238‑7523
Group practices
Medicare enrollment lists Daniel Hsu as a member of this group (CMS data updated 2026-10-02).
- Cep America LLC1,023 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437642121 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians