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Dr. John Morrissey, MD

Critical Care Internist, Pulmonologist, Internist

Upper Marlboro, MD

32 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Morrissey, Critical Care Internist in Upper Marlboro, MD?

    Dr. John Morrissey, MD is a Critical Care Internist, who primarily practices in Upper Marlboro, MD with 2 additional practice locations. He has been practicing for over 32 years. Dr. Morrissey completed his residency at Long Island College Hospital. Dr. Morrissey is fluent in English, and is currently seeing new patients. Dr. Morrissey’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Morrissey’s office at (240) 964-8931.

    Where did Dr. Morrissey go to medical school and complete their residency?

    • Residency: Long Island College Hospital

    • Medical School: State University of New York Downstate College of Medicine

    What languages does Dr. Morrissey speak?

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

    • English

    What conditions does a Critical Care Internist like Dr. Morrissey typically treat?

    As a Critical Care Internist, Dr. Morrissey 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. Morrissey. 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:

    • Acute Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia

    Also known as:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Sudden Cardiac Arrest
    • Heart stops beating
    • Cardiopulmonary arrest

    ICD-10 Codes:

    • I469: Cardiac arrest, cause unspecified

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    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

    What procedures does a Critical Care Internist like Dr. Morrissey typically perform?

    As a Critical Care Internist, procedures performed by Dr. John Morrissey may include:

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

    Does Dr. Morrissey accept my insurance?

    Dr. Morrissey accepts most major insurance plans. Important: Please call our office at (240) 964-8931 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Morrissey accept in Upper Marlboro, MD?

    Dr. Morrissey in Upper Marlboro, MD 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 Tennessee

    • CareFirst BlueCross BlueShield

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Humana

    • Kaiser Permanente

    • Medicare

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Morrissey's office located?

    Dr. John Morrissey's Primary Practice

    901 Harry S Truman Dr N

    Upper Marlboro, MD 20774

    (240) 964-8931

    Get Directions

    Dr. John Morrissey's Practice 2

    11 S Paca St Ste 500

    Baltimore, MD 21201

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    Dr. John Morrissey's Practice 3

    1150 Varnum St NE

    Washington, DC 20017

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

    Dr. Morrissey's National Provider Identifier (NPI) number is 1740293984.

    What common questions do patients ask about Dr. Morrissey?

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

    What is Dr. John Morrissey's specialty?

    Dr. Morrissey is a Critical Care Internist near Upper Marlboro, MD.

    What does a Critical Care Internist do?

    An internist specializing in the diagnosis, treatment, and support of patients with multiple organ dysfunction. This specialist may hold administrative responsibilities within intensive care units and plays a key role in facilitating and coordinating patient care among primary physicians, critical care staff, and other specialists.

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

    Yes, Dr. Morrissey is affiliated with Um Capital Region Medical Center, West Tennessee Healthcare Jackson-Madison County General Hospital, Augusta Health - Main Campus 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 Critical Care Internist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Critical Care Internist. 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 Dr. John Morrissey accepting new patients in Upper Marlboro, MD?

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

    Does Dr. John Morrissey offer online booking?

    Please contact Dr. Morrissey's office at (240) 964-8931 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. John Morrissey?

    Please contact Dr. Morrissey's office at (240) 964-8931 to schedule an appointment.

    Where is Dr. Morrissey's office located?

    Dr. Morrissey's offices are located in Upper Marlboro, MD, Baltimore, MD, and Washington, DC.