Quick answers
- Which hospitals does Judy A. Trieu work at?
- Medicare's official clinician data lists Judy A. Trieu at 5 hospitals: Alton Memorial Hospital, Barnes Jewish Hospital, Barnes-Jewish West County Hospital, Missouri Baptist Medical Center and UNC Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Judy A. Trieu see patients?
- Medicare's clinician data lists 6 practice locations, including Saint Louis, MO, Chapel Hill, NC and St Louis, MO. Call before your visit to confirm the address.
- What is Judy A. Trieu's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Judy A. Trieu accept Medicare assignment?
- Yes. Medicare's clinician data says Judy A. Trieu 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 Judy A. Trieu?
- (314) 747-3000, as listed in official Medicare / NPI Registry data.
- What is Judy A. Trieu's NPI number?
- 1477917698. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Judy A. Trieu works
Medicare's Facility Affiliation Data lists Judy A. Trieu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alton Memorial HospitalAlton, IL · Acute Care Hospital · CCN 140002
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · CCN 260032
- Barnes-Jewish West County HospitalCreve Coeur, MO · Acute Care Hospital · CCN 260162
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
- UNC HospitalsChapel Hill, NC · Acute Care Hospital · CCN 340061
Practice locations
Addresses where Judy A. Trieu is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1 Barnes Jew Hosp PlzSaint Louis, MO 63110 (314) 747‑3000
- 101 Manning DrChapel Hill, NC 27514 (984) 974‑1000
- 12634 Olive BlvdSaint Louis, MO 63141 (314) 996‑8000
- 3015 N Ballas RdSaint Louis, MO 63131 (314) 747‑2066
- 3015 N Ballas Rd, Missouri Baptist HospitalSt Louis, MO 63131 (314) 996‑5601
Group practices
Medicare enrollment lists Judy A. Trieu as a member of these groups (CMS data updated 2026-10-02).
- Washington University3,029 clinicians in the group
- University of North Carolina at Chapel Hill2,052 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477917698 |
| 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