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Dr. Daniel Castellanos, MD

Boston, MA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Castellanos, Pediatric Cardiologist in Boston, MA?

    Dr. Daniel Castellanos, MD is a Pediatric Cardiologist, who primarily practices in Boston, MA. He is board certified. Dr. Castellanos is fluent in English, and is currently seeing new patients. Dr. Castellanos’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Castellanos’s office.

    What languages does Dr. Castellanos speak?

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

    • English

    What conditions does Dr. Castellanos treat?

    As a Pediatric Cardiologist, Dr. Castellanos 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. Castellanos. 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:

    • Great Vein Malformation
    • Tetralogy of Fallot
    • Ventricular Septal Defect
    • Patent Foramen Ovale
    • Leaky Aortic Valve at Birth
    • Hole in the Heart (Atrial Septal Defect)
    • Narrowing of the Aorta
    • Congenital Aortic Valve Stenosis
    • Congenital Pulmonary Valve Stenosis
    • Heart Chamber and Connection Birth Defect
    • Discordant Ventriculoarterial Connection
    • Complete Atrioventricular Septal Defect
    • Hypoplastic Left Heart Syndrome
    • Partially Abnormal Pulmonary Vein Connection
    • Patent Ductus Arteriosus
    • Congenital Heart Defects
    • Critical congenital heart disease
    • Heart Valve Disease
    • Major Vein Defect
    • Abnormal Great Veins
    • Large Vein Birth Defect
    • TOF
    • Blue Baby Syndrome
    • Complex Heart Defect
    • VSD
    • Hole in the Heart (Ventricles)
    • Congenital Heart Anomaly
    • PFO
    • Open Foramen Ovale
    • Hole in Heart (PFO)
    • Congenital Aortic Regurgitation
    • Aortic Valve Insufficiency
    • Aortic Valve Leak
    • ASD
    • Atrial Septal Defect
    • Hole between Upper Heart Chambers
    • Aortic Coarctation
    • CoA
    • Pinched Aorta
    • Narrowed Aortic Valve at Birth
    • Aortic Valve Narrowing
    • Heart Valve Birth Defect
    • Narrowed Pulmonary Valve at Birth
    • Pulmonary Valve Narrowing
    • Congenital Cardiac Chamber Anomaly
    • Heart Connection Malformation
    • Structural Heart Defect
    • Transposition of the Great Arteries
    • Heart Artery Misconnection
    • Complete AVSD
    • Full Endocardial Cushion Defect
    • Large Hole in Heart
    • HLHS
    • Underdeveloped Left Heart
    • Complex Congenital Heart Disease
    • PAPVC
    • Partial Anomalous Pulmonary Venous Return
    • Partially Misconnected Lung Veins
    • PDA
    • Open Ductus Arteriosus
    • Heart Connection Problem in Newborns

    ICD-10 Codes:

    • Q268: Other congenital malformations of great veins
    • Q213: Tetralogy of Fallot
    • Q210: Ventricular septal defect
    • Q2112: Patent foramen ovale
    • Q231: Congenital insufficiency of aortic valve
    • Q2110: Atrial septal defect, unspecified
    • Q251: Coarctation of aorta
    • Q230: Congenital stenosis of aortic valve
    • Q221: Congenital pulmonary valve stenosis
    • Q209: Congenital malformation of cardiac chambers and connections, unspecified
    • Q203: Discordant ventriculoarterial connection
    • Q2123: Complete atrioventricular septal defect
    • Q234: Hypoplastic left heart syndrome
    • Q263: Partial anomalous pulmonary venous connection
    • Q250: Patent ductus arteriosus

    Also known as:

    • Tricuspid Valve Insufficiency
    • Pulmonary Valve Insufficiency
    • Leaky Mitral Valve
    • Heart Valve Disease
    • Leaky tricuspid valve
    • Tricuspid regurgitation
    • Leaky pulmonary valve
    • Pulmonary regurgitation
    • Mitral Valve Insufficiency
    • Mitral Regurgitation

    ICD-10 Codes:

    • I361: Nonrheumatic tricuspid (valve) insufficiency
    • I371: Nonrheumatic pulmonary valve insufficiency
    • I340: Nonrheumatic mitral (valve) insufficiency

    Also known as:

    • Arrhythmia
    • Irregular heartbeat
    • Heart rhythm disorder
    • Cardiac dysrhythmia

    ICD-10 Codes:

    • I499: Cardiac arrhythmia, unspecified

    Also known as:

    • Enlarged Heart
    • Heart Disease
    • Cardiomegaly
    • Big heart
    • Heart enlargement

    ICD-10 Codes:

    • I517: Cardiomegaly

    Which procedures does Dr. Castellanos perform as a Pediatric Cardiologist?

    As a Pediatric Cardiologist, procedures performed by a Dr. Daniel Castellanos may include:

    For detailed information, please contact Dr. Castellanos' office.

    Does Dr. Castellanos accept my insurance?

    Dr. Castellanos accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Castellanos accept in Boston, MA?

    Dr. Castellanos in Boston, MA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross Blue Shield of Massachusetts

    • Boston Medical Center

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Fallon Community Health Plan

    • Medicare

    • OptumRx

    • Point32Health

    • State of Massachusetts

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Castellanos' office located?

    Dr. Daniel Castellanos' Primary Practice

    300 Longwood Ave

    Boston, MA 02115

    Get Directions

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

    Dr. Castellanos's National Provider Identifier (NPI) number is 1003298126.

    What common questions do patients ask about Dr. Castellanos?

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

    What is Dr. Daniel Castellanos's specialty?

    Dr. Castellanos is a Pediatric Cardiologist near Boston, MA. A pediatric cardiologist provides comprehensive care for children with cardiovascular issues, offering expertise in diagnosing, treating, and managing heart and blood vessel conditions. This specialist is skilled in selecting, performing, and interpreting structural and functional assessments of the heart and blood vessels, as well as conducting thorough clinical evaluations of cardiovascular diseases in young patients. Contact Dr. Castellanos to book an appointment today.

    Is this Dr. Daniel Castellanos affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Castellanos is affiliated with Beth Israel Deaconess Medical Center-Boston 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 Pediatric Cardiologist?

    Explore Pediatric 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 Daniel Castellanos accepting new patients in Boston, MA?

    Yes, Dr. Daniel Castellanos is accepting new patients at this time.

    Does Dr. Daniel Castellanos offer online booking?

    Please contact Dr. Castellanos's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Daniel Castellanos?

    Please contact Dr. Castellanos's office for information regarding telehealth appointment availability or for scheduling assistance.

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