Daniel O'Brien
Cardiovascular Disease Internal Medicine
Also practices: HOSPITALIST, INTERNAL MEDICINE
Patients across CA can see Daniel O'Brien in person in Rolling Hills Estates or via virtual visit — no travel required. Trained at University of Southern California Keck School of Medicine (class of 2018), he has been practicing for over 8 years. Cardiologists specialize in diagnosing and treating heart and blood vessel conditions including coronary artery disease, and more.
Recent · 42dNPPES updated 2026-03-25 · verify on CMS
Contact & Location
Practice Location
501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 90274-7606
$483 received from industry
4 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Daniel O'Brien's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2018
Keck School of Medicine of Usc
Board certified · Mar 24, 2026
CMS-verified certification date
8 years in practice
Established
Cardiologists specialize in diagnosing and treating heart and blood vessel conditions including coronary artery disease, heart failure, arrhythmias, valve disorders, and hypertension. They perform diagnostic procedures such as echocardiograms, stress tests, and cardiac catheterization.
Taxonomy: 207RC0000X
Education & Training
University of Southern California Keck School of Medicine (Class of 2018)
Mailing address
5767 W Century Blvd Ste 400, Los Angeles, CA 90045-5631
Differs from practice location
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194102
View hospital on Medicare Care CompareVirtual Cardiovascular Disease Care With Daniel O'Brien
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Daniel O'Brien for follow-ups, medication reviews, and ongoing care — no travel to Rolling Hills Estates required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Daniel O'Brien
Dr. O'Brien is listed as active in the NPI registry with telehealth listed in Rolling Hills Estates, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (310) 303-3953.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Daniel O'Brien
Practice Location
501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 90274-7606
Mailing Address
5767 W Century Blvd Ste 400, Los Angeles, CA 90045-5631
This is a provider directory. Contact the office directly to schedule appointments.
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