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Dr. Daniel O'brien

Rolling Hills Estates, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. O'brien, Cardiologist in Rolling Hills Estates, CA?

    Dr. Daniel O'brien is a Cardiologist, who primarily practices in Rolling Hills Estates, CA with 2 additional practice locations. Dr. O'brien is fluent in English, and is currently seeing new patients. Dr. O'brien’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. O'brien’s office at (310) 303-3953.

    What languages does Dr. O'brien speak?

    Dr. O'brien and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does a Cardiologist like Dr. O'brien typically treat?

    As a Cardiologist, Dr. O'brien diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. O'brien. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Heart Palpitations
    • Atrial Fibrillation
    • Arrhythmia
    • Skipped Heartbeat
    • Fluttering Heart
    • Pounding Heart
    • Afib
    • A-fib
    • Irregular heart rhythm

    ICD-10 Codes:

    • R002: Palpitations
    • I480: Paroxysmal atrial fibrillation

    Also known as:

    • Hardening of the Arteries in the Heart without Chest Pain
    • Atherosclerosis
    • Coronary Artery Disease
    • Silent Coronary Artery Disease
    • Asymptomatic Atherosclerosis

    ICD-10 Codes:

    • I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hypercholesterolemia
    • High blood cholesterol
    • Elevated cholesterol
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E7800: Pure hypercholesterolemia, unspecified
    • E785: Hyperlipidemia, unspecified

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Dizziness
    • Dizziness and Vertigo
    • Lightheadedness
    • Giddiness
    • Vertigo

    ICD-10 Codes:

    • R42: Dizziness and giddiness

    Also known as:

    • Pre-Procedure Heart Examination
    • Pre-Surgery Cardiac Checkup
    • Heart Health Assessment (Before Procedure)
    • Cardiovascular Clearance Exam

    ICD-10 Codes:

    • Z01810: Encounter for preprocedural cardiovascular examination

    What procedures does a Cardiologist like Dr. O'brien typically perform?

    As a Cardiologist, procedures performed by Dr. Daniel O'brien may include:

    Please contact Dr. O'brien's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. O'brien accept my insurance?

    Dr. O'brien accepts most major insurance plans. Important: Please call our office at (310) 303-3953 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. O'brien accept in Rolling Hills Estates, CA?

    Dr. O'brien in Rolling Hills Estates, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Blue Shield of California

    • Centene Corporation

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • L.A. Care Health Plan

    • Medicare

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. O'brien's office located?

    Dr. Daniel O'brien's Primary Practice

    501 Deep Valley Dr Ste 100

    Rolling Hills Estates, CA 90274

    (310) 303-3953

    Get Directions

    Dr. Daniel O'brien's Practice 2

    650 Charles E Young Dr S

    Los Angeles, CA 90095

    Get Directions

    Dr. Daniel O'brien's Practice 3

    200 UCLA Medical Plz Ste 420

    Los Angeles, CA 90095

    Get Directions

    What is Dr. O'brien's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. O'brien's National Provider Identifier (NPI) number is 1023512431.

    What common questions do patients ask about Dr. O'brien?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. O'brien

    What is Dr. Daniel O'brien's specialty?

    Dr. O'brien is a Cardiologist near Rolling Hills Estates, CA.

    What does a Cardiologist do?

    An internist specializing in cardiovascular diseases focuses on the diagnosis and management of complex heart and blood vessel conditions, including heart attacks and life-threatening arrhythmias.

    Is this Dr. Daniel O'brien affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. O'brien is affiliated with Torrance Memorial Medical Center, Providence Little Company Of Mary Medical Center Torrance, Ronald Reagan Ucla Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see a Cardiologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Cardiologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Daniel O'brien accepting new patients in Rolling Hills Estates, CA?

    Yes, Dr. Daniel O'brien is accepting new patients at this time.

    Does Dr. Daniel O'brien offer online booking?

    Please contact Dr. O'brien's office at (310) 303-3953 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Daniel O'brien?

    Please contact Dr. O'brien's office at (310) 303-3953 for information regarding telehealth appointment availability or for scheduling assistance.

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