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Dr. Mary Landrigan-Ossar, MD, PHD

Boston, MA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Landrigan-Ossar, Anesthesiologist in Boston, MA?

    Dr. Mary Landrigan-Ossar, MD, PHD is an Anesthesiologist, who primarily practices in Boston, MA. She is board certified. Dr. Landrigan-Ossar graduated from Icahn School of Medicine at Mount Sinai and completed her residency at Mount Sinai Hospital Medical Center of Chicago Program. Dr. Landrigan-Ossar is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Landrigan-Ossar’s office at (617) 355-6000.

    Where did Dr. Landrigan-Ossar go to medical school and complete their residency?

    • Residency: Mount Sinai Hospital Medical Center of Chicago Program

    • Medical School: Icahn School of Medicine at Mount Sinai

    Is Dr. Landrigan-Ossar board certified as an Anesthesiologist?

    Yes, Dr. Mary Landrigan-Ossar, MD, PHD is board certified by the American Board of Anesthesiology

    What languages does Dr. Landrigan-Ossar speak?

    Dr. Landrigan-Ossar and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does an Anesthesiologist like Dr. Landrigan-Ossar typically treat?

    As an Anesthesiologist, Dr. Landrigan-Ossar 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. Landrigan-Ossar. 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 here.

    Also known as:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    Also known as:

    • Enlarged Tonsils and Adenoids
    • Adenoids
    • Tonsil and adenoid hypertrophy
    • Swollen tonsils and adenoids
    • Big tonsils and adenoids

    ICD-10 Codes:

    • J353: Hypertrophy of tonsils with hypertrophy of adenoids

    Also known as:

    • Acute Stress Reaction
    • Stress
    • Acute Stress Disorder
    • Traumatic Stress
    • Short-term Stress Reaction

    ICD-10 Codes:

    • F430: Acute stress reaction

    Also known as:

    • Peripheral Vascular Malformation
    • Birth Defects
    • Blood Vessel Birth Defect
    • Vascular Anomaly
    • Limb Vascular Defect

    ICD-10 Codes:

    • Q279: Congenital malformation of peripheral vascular system, unspecified

    Also known as:

    • Other Hip Deformity at Birth
    • Birth Defects
    • Hip Injuries and Disorder
    • Congenital Hip Malformation
    • Birth Defect of Hip
    • Abnormal Hip Development

    ICD-10 Codes:

    • Q6589: Other specified congenital deformities of hip

    Also known as:

    • Enlarged Adenoids
    • Adenoids
    • Adenoid hypertrophy
    • Swollen adenoids
    • Big adenoids

    ICD-10 Codes:

    • J352: Hypertrophy of adenoids

    Also known as:

    • Acute Appendicitis with Localized Abdominal Infection
    • Appendicitis
    • Peritoneal Disorder
    • Appendicitis with Local Peritonitis
    • Localized Abdominal Infection from Appendix
    • Early Appendicitis with Infection

    ICD-10 Codes:

    • K3530: Acute appendicitis with localized peritonitis, without perforation or gangrene

    Also known as:

    • COVID-19 Testing
    • Coronavirus Test
    • SARS-CoV-2 Test
    • COVID Test

    ICD-10 Codes:

    • Z1152: Encounter for screening for COVID-19

    Does Dr. Landrigan-Ossar accept my insurance?

    Dr. Landrigan-Ossar accepts most major insurance plans. Important: Please call our office at (617) 355-6000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Landrigan-Ossar accept in Boston, MA?

    Dr. Landrigan-Ossar in Boston, MA 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 Cross Blue Shield of Massachusetts

    • BMC Health System

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Fallon Health

    • Mass General Brigham

    • Point32Health

    • State of Massachusetts

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Landrigan-Ossar's office located?

    Dr. Mary Landrigan-Ossar's Primary Practice

    300 Longwood Ave

    Boston, MA 02115

    (617) 355-6000

    Get Directions

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

    Dr. Landrigan-Ossar's National Provider Identifier (NPI) number is 1487616850.

    What common questions do patients ask about Dr. Landrigan-Ossar?

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

    What is Dr. Mary Landrigan-Ossar's specialty?

    Dr. Landrigan-Ossar is a Anesthesiologist near Boston, MA.

    What does an Anesthesiologist do?

    A physician specialist in pain management and maintaining or restoring a stable state during and right after surgical, obstetric, or diagnostic operations is known as an anesthesiologist. This specialist assesses each patient's risk of surgery and tries to improve their condition before to, during, and following the procedure. Anesthesiologists provide medical management, pain management, and critical care consults in addition to these vital management responsibilities. They are responsible for managing patients with severe illnesses or injuries, supervising the recovery period following anesthesia, directing resuscitation efforts for patients experiencing cardiac or respiratory emergencies that may require artificial ventilation, and diagnosing and treating both acute and chronic pain, including pain related to cancer.

    Is this Dr. Mary Landrigan-Ossar affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Landrigan-Ossar is affiliated with Dartmouth Hitchcock Medical Center, Elliot Hospital, Emerson Health, Mainehealth Maine Medical Center Portland 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 an Anesthesiologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Anesthesiologist. 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 Mary Landrigan-Ossar accepting new patients in Boston, MA?

    Yes, Dr. Mary Landrigan-Ossar is accepting new patients at this time.

    Does Dr. Mary Landrigan-Ossar offer online booking?

    Please contact Dr. Landrigan-Ossar's office at (617) 355-6000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mary Landrigan-Ossar?

    Please contact Dr. Landrigan-Ossar's office at (617) 355-6000 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Mary Landrigan-Ossar have?

    Dr. Mary Landrigan-Ossar is certified by the American Board of Anesthesiology.

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