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Dr. Leif Ellisen, MD, PHD

Dr. Leif Ellisen, MD, PHD

Boston, MA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ellisen, Medical Oncologist in Boston, MA?

    Dr. Leif Ellisen, MD, PHD is a Medical Oncologist, who primarily practices in Boston, MA with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Ellisen graduated from Stanford University School of Medicine and completed his residency at Brigham & Women'S Hosp, Internal Medicine. Dr. Ellisen is fluent in English and French, and is currently seeing new patients. Dr. Ellisen’s practice accepts Medicare, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ellisen’s office at (617) 724-1399.

    What are Areas of Expertise for Dr. Ellisen?

    Dr. Leif Ellisen, MD, PHD is a highly-rated, board-certified Medical Oncologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Ellisen empowers patients to confidently navigate their health journey, specializing in Breast Cancer, or comprehensive wellness support. Serving the Boston/MA community, Dr. Ellisen is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Brigham & Women'S Hosp, Internal Medicine

    • Medical School: Stanford Univ Sch Of Med- Stanford Ca | Stanford University School of Medicine

    Is Dr. Ellisen board certified in Medical Oncologist?

    Yes, Dr. Leif Ellisen, MD, PHD is board certified by the American Board of Internal Medicine

    What languages does Dr. Ellisen speak?

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

    • English

    • French

    What conditions does Dr. Ellisen treat?

    As a Medical Oncologist, Dr. Ellisen 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. Ellisen. 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:

    • Genetic Counseling
    • Genetic risk assessment
    • Hereditary counseling
    • DNA counseling

    ICD-10 Codes:

    • Z7183: Encounter for nonprocreative genetic counseling

    Which procedures does Dr. Ellisen perform as a Medical Oncologist?

    As a Medical Oncologist, procedures performed by a Dr. Leif Ellisen may include:

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

    Does Dr. Ellisen accept my insurance?

    Dr. Ellisen accepts most major insurance plans. Important: Please call our office at (617) 724-1399 before your appointment to verify that your specific plan and network are accepted.

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

    Dr. Ellisen 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

    • Blue Cross Blue Shield of Illinois

    • Blue Cross Blue Shield of Massachusetts

    • Blue Cross Blue Shield of Michigan

    • Capital Blue Cross

    • Cigna

    • CMS

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Medicare

    View All Insurances

    Where is Dr. Ellisen's office located?

    Dr. Leif Ellisen's Primary Practice

    55 Fruit St

    Boston, MA 02114

    (617) 724-1399

    Get Directions

    Dr. Leif Ellisen's Practice 2

    133 Old Road To 9 Acre Cor Ste 200

    Concord, MA 01742

    Get Directions

    Dr. Leif Ellisen's Practice 3

    185 Cambridge St

    Boston, MA 02114

    (617) 726-4315

    Get Directions

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

    Dr. Ellisen's National Provider Identifier (NPI) number is 1225028533.

    What common questions do patients ask about Dr. Ellisen?

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

    What is Dr. Leif Ellisen's specialty?

    Dr. Ellisen is a Medical Oncologist near Boston, MA. An internist specializing in the diagnosis and treatment of various cancers and both benign and malignant tumors. This specialist determines and administers therapy for malignancies and collaborates with surgeons and radiation oncologists on additional cancer treatment options. Contact Dr. Ellisen to book an appointment today.

    Is this Dr. Leif Ellisen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Ellisen is affiliated with Massachusetts General Hospital 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 Medical Oncologist?

    Explore Medical Oncologist 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 Leif Ellisen accepting new patients in Boston, MA?

    Yes, Dr. Leif Ellisen is accepting new patients at this time.

    Does Dr. Leif Ellisen offer online booking?

    Please contact Dr. Ellisen's office at (617) 724-1399 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Leif Ellisen?

    Please contact Dr. Ellisen's office at (617) 724-1399 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Leif Ellisen have?

    Dr. Leif Ellisen is certified by the American Board of Internal Medicine.

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