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Dr. Mary Brennan, MD

Valhalla, NY

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Brennan, Pediatrician in Valhalla, NY?

    Dr. Mary Brennan, MD is a Pediatrician, who primarily practices in Valhalla, NY with 1 additional practice location. She is board certified. Dr. Brennan is fluent in English, and is currently seeing new patients. Dr. Brennan’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Brennan’s office at (914) 493-7000.

    What languages does Dr. Brennan speak?

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

    • English

    What conditions does Dr. Brennan treat?

    As a Pediatrician, Dr. Brennan 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. Brennan. 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:

    • Dehydration
    • Fluid and Electrolyte Balance
    • Lack of Fluids
    • Fluid Loss
    • Body Water Depletion

    ICD-10 Codes:

    • E860: Dehydration

    Also known as:

    • RSV Bronchiolitis
    • Bronchial Disorder
    • Respiratory Syncytial Virus Infection
    • RSV lung infection
    • Viral bronchiolitis
    • Acute bronchiolitis

    ICD-10 Codes:

    • J210: Acute bronchiolitis due to respiratory syncytial virus

    Also known as:

    • Low Blood Oxygen
    • Lung Disease
    • Hypoxemia
    • Reduced oxygen in blood
    • Oxygen deficiency

    ICD-10 Codes:

    • R0902: Hypoxemia

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Fever
    • High temperature
    • Pyrexia
    • Elevated body temperature

    ICD-10 Codes:

    • R509: Fever, unspecified

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    Which procedures does Dr. Brennan perform as a Pediatrician?

    As a Pediatrician, procedures performed by a Dr. Mary Brennan may include:

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

    Does Dr. Brennan accept my insurance?

    Dr. Brennan accepts most major insurance plans. Important: Please call our office at (914) 493-7000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Brennan accept in Valhalla, NY?

    Dr. Brennan in Valhalla, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Centene

    • CVS Health (formerly Aetna)

    • Express Scripts

    • MagnaCare Rx

    • Medicaid

    • Medicare

    • MVP Healthcare

    • National Benefit Fund

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Brennan's office located?

    Dr. Mary Brennan's Primary Practice

    100 Woods Rd

    Valhalla, NY 10595

    (914) 493-7000

    Get Directions

    Dr. Mary Brennan's Practice 2

    40 Sunshine Cottage Rd

    Valhalla, NY 10595

    Get Directions

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

    Dr. Brennan's National Provider Identifier (NPI) number is 1033565668.

    What common questions do patients ask about Dr. Brennan?

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

    What is Dr. Mary Brennan's specialty?

    Dr. Brennan is a Pediatrician near Valhalla, NY. A pediatrician focuses on the physical, emotional, and social health of children from birth through young adulthood. Their care includes a wide range of health services, from preventive healthcare to diagnosing and treating acute and chronic diseases. Pediatricians consider the biological, social, and environmental influences on a child's development, as well as how diseases and dysfunctions can impact growth and overall development. Contact Dr. Brennan to book an appointment today.

    Is this Dr. Mary Brennan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Brennan is affiliated with Westchester Medical Center 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 Pediatrician?

    Explore Pediatrician 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 Mary Brennan accepting new patients in Valhalla, NY?

    Yes, Dr. Mary Brennan is accepting new patients at this time.

    Does Dr. Mary Brennan offer online booking?

    Please contact Dr. Brennan's office at (914) 493-7000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mary Brennan?

    Please contact Dr. Brennan's office at (914) 493-7000 for information regarding telehealth appointment availability or for scheduling assistance.

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