Doctor profile · Federal record
Dr. Daniel O'Brien
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Rolling Hills Estates, CA
- NPI 1023512431
- Accepts Medicare
- 8 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
501 Deep Valley Dr Ste 100
Rolling Hills Estates, CA 902747606
(310) 303-3953
fax (310) 303-7903 - Additional location
-
200 UCLA Medical Plz Ste 420
Los Angeles, CA 900958358
(310) 206-6232 - Additional location
-
757 Westwood Plz
Los Angeles, CA 900958358
(310) 825-9111 - Mailing address
-
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631
Credentials & registration
- NPI registered
- March 2018 — 8 yrs on file
- Profile last updated
- March 25, 2026
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- California #A165839
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023512431. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$483
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $237.84 | |
| ShockWave Medical, INC | 1 | $148.59 | |
| Edwards Lifesciences Corporation | 2 | $96.23 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Daniel O'Brien's medical specialty?
Dr. Daniel O'Brien practices Cardiovascular Disease Physician in Rolling Hills Estates, CA.
Where does Dr. Daniel O'Brien practice?
Dr. Daniel O'Brien practices at 501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 902747606. Office phone: 3103033953.
What is Dr. Daniel O'Brien's NPI?
Dr. Daniel O'Brien's National Provider Identifier (NPI) is 1023512431, issued by NPPES.
Does Dr. Daniel O'Brien accept Medicare assignment?
Yes. Dr. Daniel O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.