Doctor profile · Federal record
Dr. Ryan O'Connor, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Los Angeles, CA
- NPI 1821101635
- Accepts Medicare
- 24 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1442 Kellam Ave
Los Angeles, CA 900265138
(310) 990-9979 - Mailing address
-
190 Portola RD
Portola Valley, CA 940287852
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- September 26, 2011
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A95130
- Medicaid
- CA #00A951300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821101635. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
39
Distinct HCPCS
2
Medicare allowed
$6,259
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 24 | 24 | $182 | |
99284 |
Emergency department visit with moderate level of medical decision making | 15 | 15 | $126 |
In context: peer comparison
Among 185 peers in Los Angeles Emergency Medicine Physician, average services per provider: 87. This provider delivers 0.4× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Ryan O'Connor's medical specialty?
Dr. Ryan O'Connor practices Emergency Medicine Physician in Los Angeles, CA.
Where does Dr. Ryan O'Connor practice?
Dr. Ryan O'Connor practices at 1442 Kellam Ave, Los Angeles, CA 900265138. Office phone: 3109909979.
What is Dr. Ryan O'Connor's NPI?
Dr. Ryan O'Connor's National Provider Identifier (NPI) is 1821101635, issued by NPPES.
Does Dr. Ryan O'Connor accept Medicare assignment?
Yes. Dr. Ryan O'Connor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.