Doctor profile · Federal record
Dr. James O'Brien, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · South San Francisco, CA
- NPI 1780143024
- Accepts Medicare
- 7 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1200 El Camino Real
South San Francisco, CA 940803208
(650) 742-2000 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- March 2019 — 7 yrs on file
- Profile last updated
- September 9, 2024
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (3)
- California #A195340 · Illinois #125.073615 · Illinois #036164831
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780143024. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
97
Distinct HCPCS
3
Medicare allowed
$11,005
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 39 | 37 | $189 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 32 | 29 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 26 | 26 | $129 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 73. This provider delivers 1.3× the peer median.Frequently asked questions
What is Dr. James O'Brien's medical specialty?
Dr. James O'Brien practices Emergency Medicine Physician in South San Francisco, CA.
Where does Dr. James O'Brien practice?
Dr. James O'Brien practices at 1200 El Camino Real, South San Francisco, CA 940803208. Office phone: 6507422000.
What is Dr. James O'Brien's NPI?
Dr. James O'Brien's National Provider Identifier (NPI) is 1780143024, issued by NPPES.
Does Dr. James O'Brien accept Medicare assignment?
Yes. Dr. James O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.