Quick answers
- Which hospitals does Chaim I. Nelson work at?
- Medicare's official clinician data lists Chaim I. Nelson at 2 hospitals: Cedar-Sinai Marina del Rey Hospital and Santa Monica - UCLA Med Ctr & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Chaim I. Nelson see patients?
- Medicare's clinician data lists 2 practice locations, including Thousand Oaks, CA and Santa Monica, CA. Call before your visit to confirm the address.
- What is Chaim I. Nelson's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Chaim I. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says Chaim I. Nelson 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 Chaim I. Nelson?
- (805) 418-3500, as listed in official Medicare / NPI Registry data.
- What is Chaim I. Nelson's NPI number?
- 1114286770. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Chaim I. Nelson works
Medicare's Facility Affiliation Data lists Chaim I. Nelson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cedar-Sinai Marina del Rey HospitalMarina del Rey, CA · Acute Care Hospital · CCN 050740
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · CCN 050112
Practice locations
Addresses where Chaim I. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Moody Ct, Suite 200Thousand Oaks, CA 91360 (805) 418‑3500
- 1225 15th StSanta Monica, CA 90404 (310) 319‑1234
Group practices
Medicare enrollment lists Chaim I. Nelson as a member of this group (CMS data updated 2026-10-02).
- Regents of the University of California236 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114286770 |
| 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