Quick answers
- Which hospitals does Mark E. Hall work at?
- Medicare's official clinician data lists Mark E. Hall at 1 hospital: Ronald Reagan UCLA Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Hall see patients?
- Medicare's clinician data lists 10 practice locations, including Los Angeles, CA, Thousand Oaks, CA and Westlake Village, CA. Call before your visit to confirm the address.
- What is Mark E. Hall's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Mark E. Hall accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. Hall 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.
- Does Mark E. Hall offer telehealth?
- Medicare's clinician data says Mark E. Hall offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark E. Hall?
- (310) 825-7922, as listed in official Medicare / NPI Registry data.
- What is Mark E. Hall's NPI number?
- 1891181103. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark E. Hall works
Medicare's Facility Affiliation Data lists Mark E. Hall at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
Practice locations
Addresses where Mark E. Hall is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 100 Medical PlazaLos Angeles, CA 90095
- 100 Medical Plz, Suite 310Los Angeles, CA 90095 (310) 825‑7922
- 100 Moody Ct, Suite 200Thousand Oaks, CA 91360 (805) 418‑3500
- 141 Triunfo Canyon RdWestlake Village, CA 91361 (805) 371‑1393
- 200 Medical PlazaLos Angeles, CA 90095
Group practices
Medicare enrollment lists Mark E. Hall as a member of this group (CMS data updated 2026-10-02).
- The Regents of the University of California1,462 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Texas Tech University Health Science Center School Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891181103 |
| 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