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Dr. John Nan, MD

Newport Beach, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nan, Interventional Cardiologist in Newport Beach, CA?

    Dr. John Nan, MD is an Interventional Cardiologist, who primarily practices in Newport Beach, CA with 2 additional practice locations. He is board certified. Dr. Nan is fluent in English, and is currently seeing new patients. Dr. Nan’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nan’s office at (507) 284-2511.

    What languages does Dr. Nan speak?

    Dr. Nan and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Nan treat?

    As a Interventional Cardiologist, Dr. Nan 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. Nan. 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.

    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
    • I4891: Unspecified atrial fibrillation

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • Narrowed Aortic Valve
    • Leaky Mitral Valve
    • Heart Valve Disease
    • Aortic Valve Stenosis
    • Tight Aortic Valve
    • Mitral Valve Insufficiency
    • Mitral Regurgitation

    ICD-10 Codes:

    • I350: Nonrheumatic aortic (valve) stenosis
    • I340: Nonrheumatic mitral (valve) insufficiency

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

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

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Shortness of Breath
    • Breathing Problems
    • Dyspnea
    • Difficulty breathing
    • Breathlessness

    ICD-10 Codes:

    • R0609: Other forms of dyspnea

    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

    Also known as:

    • Cardiomyopathy
    • Heart Muscle Disease
    • Enlarged Heart

    ICD-10 Codes:

    • I429: Cardiomyopathy, unspecified

    Also known as:

    • Long-Term Blood Thinner Use
    • Blood Thinners
    • Chronic anticoagulant therapy
    • Ongoing blood thinner treatment
    • Anticoagulant medication use

    ICD-10 Codes:

    • Z7901: Long term (current) use of anticoagulants

    Also known as:

    • Having a Prosthetic Heart Valve
    • Heart Valve Disease
    • Artificial heart valve
    • Mechanical heart valve
    • Bioprosthetic valve

    ICD-10 Codes:

    • Z952: Presence of prosthetic heart valve

    Also known as:

    • Heart Failure
    • Congestive Heart Failure
    • CHF
    • Cardiac Insufficiency

    ICD-10 Codes:

    • I509: Heart failure, unspecified

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Having an Implantable Cardiac Defibrillator (ICD)
    • Pacemakers and Implantable Defibrillators
    • ICD implant
    • Automatic defibrillator
    • Implanted heart shock device

    ICD-10 Codes:

    • Z95810: Presence of automatic (implantable) cardiac defibrillator

    Also known as:

    • Ischemic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • Past Heart Attack
    • Heart Attack
    • Previous Heart Attack
    • Old Myocardial Infarction
    • Prior Heart Attack

    ICD-10 Codes:

    • I252: Old myocardial infarction

    Also known as:

    • Chronic Atrial Fibrillation
    • Atrial Fibrillation
    • Persistent AFib
    • Long-term AFib
    • Ongoing Atrial Fibrillation

    ICD-10 Codes:

    • I4820: Chronic atrial fibrillation, unspecified

    Which procedures does Dr. Nan perform as a Interventional Cardiologist?

    As a Interventional Cardiologist, procedures performed by an Dr. John Nan may include:

    For detailed information, please contact Dr. Nan's office.

    Does Dr. Nan accept my insurance?

    Dr. Nan accepts most major insurance plans. Important: Please call our office at (507) 284-2511 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nan accept in Newport Beach, CA?

    Dr. Nan in Newport Beach, 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

    • CalOptima

    • Centene

    • Hoag Memorial Hospital Presbyterian

    • Medicare

    • Other Provider Networks

    • Scan Health Plan

    • Seaside Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Nan's office located?

    Dr. John Nan's Primary Practice

    415 Old Newport Blvd Ste 200

    Newport Beach, CA 92663

    (507) 284-2511

    Get Directions

    Dr. John Nan's Practice 2

    225 Smith Ave N Ste 400

    Saint Paul, MN 55102

    Get Directions

    Dr. John Nan's Practice 3

    200 1st St SW

    Rochester, MN 55905

    Get Directions

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

    Dr. Nan's National Provider Identifier (NPI) number is 1013336643.

    What common questions do patients ask about Dr. Nan?

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

    What is Dr. John Nan's specialty?

    Dr. Nan is a Interventional Cardiologist near Newport Beach, CA. A branch of medicine within cardiology that employs advanced imaging and diagnostic techniques to assess blood flow and pressure in the coronary arteries and heart chambers. This specialty also utilizes technical procedures and medications to address abnormalities that affect cardiovascular function. Contact Dr. Nan to book an appointment today.

    Is this Dr. John Nan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nan is affiliated with Hoag Hospital Newport Beach which is a Castle Connolly Top Hospital. 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

    Where can I learn more about Interventional Cardiologist?

    Explore Interventional Cardiologist with 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 John Nan accepting new patients in Newport Beach, CA?

    Yes, Dr. John Nan is accepting new patients at this time.

    Does Dr. John Nan offer online booking?

    Please contact Dr. Nan's office at (507) 284-2511 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Nan?

    Please contact Dr. Nan's office at (507) 284-2511 for information regarding telehealth appointment availability or for scheduling assistance.

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