Quick answers
- Which hospitals does David D. Chi work at?
- Medicare's official clinician data lists David D. Chi at 2 hospitals: Adventist Health Simi Valley and Los Robles Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David D. Chi see patients?
- Medicare's clinician data lists 1 practice location in Los Angeles, CA. Call before your visit to confirm the address.
- What is David D. Chi's specialty?
- Medicare lists General Surgery as the primary specialty, and also Surgical Oncology.
- Does David D. Chi accept Medicare assignment?
- Yes. Medicare's clinician data says David D. Chi 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 David D. Chi?
- (310) 390-4099, as listed in official Medicare / NPI Registry data.
- What is David D. Chi's NPI number?
- 1881746428. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David D. Chi works
Medicare's Facility Affiliation Data lists David D. Chi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Simi ValleySimi Valley, CA · Acute Care Hospital · CCN 050236
- Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · CCN 050549
Practice locations
Addresses where David D. Chi is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Medical Plaza, Suite 120Los Angeles, CA 90024 (310) 390‑4099
Group practices
Medicare enrollment lists David D. Chi as a member of this group (CMS data updated 2026-10-02).
- The Regents of the University of California14 clinicians in the group
Specialties
- General Surgeryprimary
- Surgical Oncologyalso
Other general surgeons in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881746428 |
| 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