Dr. Brian O. Keyes, DO
Anesthesiology (Anesthesiology Physician)
8700 Beverly Blvd
West Hollywood, CA 90048
Who else practices at this address →
Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 24
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 115
Licensed in California since 2004, according to the Osteopathic Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Anesthesiology Physician primary
CA license 20A8833 (first issued 2004; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Cedars-Sinai Medical Center Los Angeles, CA
- Uci Health-Orange Orange, CA
Medical groups
- Cedars-Sinai Medical Care Foundation (1,692 clinicians)
- Regents of the University Of (239 clinicians)
- Corona Anesthesia Group Inc (28 clinicians)
- Talbert Anesthesia Group Incorporated (27 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 115
- Services billed
- 144
- Patients’ average age
- 71
| Service | Times | Patients |
|---|---|---|
| Anesthesia for exam of colon using an endoscope | 13 | 13 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 12 | 12 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 4 companies reported 8 payments worth $575 in total to this clinician.
| Avanos Medical | $265 |
|---|---|
| Stryker Corporation | $254 |
| Lilly USA, LLC | $31.17 |
| Gilead Sciences, Inc. | $24.98 |
| Food and Beverage | $444 |
|---|---|
| Travel and Lodging | $131 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Stryker Corporation Jul 9, 2025 | Travel and Lodging MAKO · KNEES, HIPS · travel to LITTLE FALLS, NJ | $131 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.