Quick answers
- Does Ana Siu Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Ana Siu Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Ana Siu Chang's NPI number?
- 1417391467. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ana Siu Chang works
Medicare's Facility Affiliation Data lists Ana Siu Chang at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- University Medical Center of El PasoEl Paso, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450024
Practice locations
Addresses where Ana Siu Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 4815 Alameda AveEl Paso, TX 79905 (915) 521‑7902
- 4845 Alameda AveEl Paso, TX 79905 (915) 298‑5444
Group practices
Medicare enrollment lists Ana Siu Chang as a member of this group (CMS data updated October 2, 2026).
- El Paso County Hospital District214 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in El Paso
Clinicians with the same Medicare primary specialty in El Paso, TX — not a recommendation.
Other clinicians in El Paso County Hospital District
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417391467 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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