Quick answers
- Which hospitals does Aaron Chen work at?
- Medicare's official clinician data lists Aaron Chen at 2 hospitals: Medical Center Hospital and St David's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Aaron Chen see patients?
- Medicare's clinician data lists 5 practice locations, including Katy, TX, Round Rock, TX and League City, TX. Call before your visit to confirm the address.
- What is Aaron Chen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Aaron Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron Chen 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 Aaron Chen?
- (713) 338-6565, as listed in official Medicare / NPI Registry data.
- What is Aaron Chen's NPI number?
- 1942512934. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Aaron Chen works
Medicare's Facility Affiliation Data lists Aaron Chen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Medical Center HospitalOdessa, TX · Acute Care Hospital · CCN 450132
- St David's Medical CenterAustin, TX · Acute Care Hospital · CCN 450431
Practice locations
Addresses where Aaron Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 22430 Grand Corner Dr, C1 100Katy, TX 77494 (713) 338‑6565
- 2400 Round Rock AveRound Rock, TX 78681 (512) 341‑1000
- 2555 Gulf Fwy S, C1 100 Memorial Hermann EmergencyLeague City, TX 77573 (713) 338‑6565
- 500 W 4th StOdessa, TX 79761 (432) 640‑4000
- 919 E 32nd St, St David'S Med CtrAustin, TX 78705 (830) 997‑4353
Group practices
Medicare enrollment lists Aaron Chen as a member of these groups (CMS data updated 2026-10-02).
- Memorial Hermann Hospital Based Physician Group276 clinicians in the group
- Longhorn Emergency Medical Associates PA159 clinicians in the group
- Basin Emergency Physicians PLLC15 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Katy
Clinicians with the same Medicare primary specialty in Katy, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942512934 |
| 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