Quick answers
- Which hospitals does John O. Brooks work at?
- Medicare's official clinician data lists John O. Brooks at 1 hospital: Ronald Reagan UCLA Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John O. Brooks see patients?
- Medicare's clinician data lists 1 practice location in Los Angeles, CA. Call before your visit to confirm the address.
- What is John O. Brooks's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does John O. Brooks accept Medicare assignment?
- Yes. Medicare's clinician data says John O. Brooks 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 John O. Brooks offer telehealth?
- Medicare's clinician data says John O. Brooks offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John O. Brooks?
- (310) 825-9989, as listed in official Medicare / NPI Registry data.
- What is John O. Brooks's NPI number?
- 1831289545. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John O. Brooks works
Medicare's Facility Affiliation Data lists John O. Brooks 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 John O. Brooks is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 Medical PlzLos Angeles, CA 90095 (310) 825‑9989
Group practices
Medicare enrollment lists John O. Brooks as a member of this group (CMS data updated 2026-10-02).
- UC Regents152 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Stanford University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831289545 |
| 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