Quick answers
- Which hospitals does Addison Chan work at?
- Medicare's official clinician data lists Addison Chan at 3 hospitals: CHRISTUS St Michael Health System, HCA Houston Healthcare Clear Lake and Valley Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Addison Chan see patients?
- Medicare's clinician data lists 2 practice locations, including Atlanta, TX and San Antonio, TX. Call before your visit to confirm the address.
- What is Addison Chan's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Addison Chan accept Medicare assignment?
- Yes. Medicare's clinician data says Addison Chan 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 Addison Chan?
- (903) 799-3000, as listed in official Medicare / NPI Registry data.
- What is Addison Chan's NPI number?
- 1568791994. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Addison Chan works
Medicare's Facility Affiliation Data lists Addison Chan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHRISTUS St Michael Health SystemTexarkana, TX · Acute Care Hospital · CCN 450801
- HCA Houston Healthcare Clear LakeWebster, TX · Acute Care Hospital · CCN 450617
- Valley Regional Medical CenterBrownsville, TX · Acute Care Hospital · CCN 450662
Practice locations
Addresses where Addison Chan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1007 S William StAtlanta, TX 75551 (903) 799‑3000
- 7700 Floyd Curl DrSan Antonio, TX 78229 (210) 575‑4000
Group practices
Medicare enrollment lists Addison Chan as a member of these groups (CMS data updated 2026-10-02).
- Emergency Medicine Services of TX, PLLC400 clinicians in the group
- Northeast Texas Emergency Physicians PLLC207 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568791994 |
| 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