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Dr. Shannon O'mahar, MD

Dr. Shannon O'mahar, MD

Madison, WI

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. O'mahar, Hematology / Oncology Specialist in Madison, WI?

    Dr. Shannon O'mahar, MD is a Hematology / Oncology Specialist, who primarily practices in Madison, WI with 2 additional practice locations. She is board certified by the American Board of Internal Medicine. Dr. O'mahar graduated from Washington University School of Medicine, St. Louis. Dr. O'mahar is fluent in English, and is currently seeing new patients. Dr. O'mahar’s practice accepts Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. O'mahar’s office at (608) 410-2700.

    What are Areas of Expertise for Dr. O'mahar?

    Dr. Shannon O'mahar, MD is a highly-rated, board-certified Hematology / Oncology Specialist 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. O'mahar empowers patients to confidently navigate their health journey, specializing in Leukemia, Melanoma, Multiple Myeloma, Myelodysplastic Syndromes, or comprehensive wellness support. Serving the Madison/WI community, Dr. O'mahar is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. O'mahar go to medical school and complete their residency?

    • Medical School: Washington University School of Medicine, St. Louis

    Is Dr. O'mahar board certified in Hematology / Oncology Specialist?

    Yes, Dr. Shannon O'mahar, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. O'mahar speak?

    Dr. O'mahar and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. O'mahar treat?

    As a Hematology / Oncology Specialist, Dr. O'mahar 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. O'mahar. 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:

    • Multiple Myeloma
    • Multiple Myeloma in Relapse
    • Multiple Myeloma in Remission
    • Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®)
    • Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ)
    • Active multiple myeloma
    • Untreated multiple myeloma
    • Plasma cell myeloma
    • Recurrent multiple myeloma
    • Relapsed myeloma
    • Myeloma recurrence
    • Plasma Cell Myeloma in Remission', 'Kahler's Disease in Remission
    • Myeloma in Remission

    ICD-10 Codes:

    • C9000: Multiple myeloma not having achieved remission
    • C9002: Multiple myeloma in relapse
    • C9001: Multiple myeloma in remission

    Also known as:

    • Chronic Lymphocytic Leukemia
    • Acute Myeloid Leukemia
    • Acute Myeloid Leukemia in Remission
    • Chronic Myeloid Leukemia
    • Chronic Myelomonocytic Leukemia
    • Chronic Lymphocytic Leukemia Treatment (PDQ®)
    • Chronic Myelogenous Leukemia Treatment (PDQ®)
    • Myelodysplastic/Myeloproliferative Neoplasms Treatment (PDQ®)
    • CLL
    • B-cell chronic lymphocytic leukemia
    • Lymphocytic leukemia
    • AML Leukemia
    • Acute Myeloblastic Leukemia
    • Acute Myelogenous Leukemia
    • AML Leukemia in Remission
    • Acute Myeloblastic Leukemia in Remission
    • Acute Myelogenous Leukemia in Remission
    • CML
    • Chronic myelogenous leukemia
    • Philadelphia chromosome positive leukemia
    • CMML
    • Myelomonocytic Leukemia

    ICD-10 Codes:

    • C9110: Chronic lymphocytic leukemia of B-cell type not having achieved remission
    • C9200: Acute myeloblastic leukemia, not having achieved remission
    • C9201: Acute myeloblastic leukemia, in remission
    • C9210: Chronic myeloid leukemia, BCR/ABL-positive, not having achieved remission
    • C9310: Chronic myelomonocytic leukemia not having achieved remission

    Also known as:

    • Myelodysplastic Syndrome
    • Myelodysplastic Syndromes
    • Myelodysplastic Syndromes Treatment (PDQ®)
    • Myelodysplastic Syndromes Treatment (PDQ)
    • MDS
    • Preleukemia
    • Bone marrow failure disorder
    • Bone Marrow Failure Syndrome

    ICD-10 Codes:

    • D469: Myelodysplastic syndrome, unspecified
    • D46Z: Other myelodysplastic syndromes

    Also known as:

    • Monoclonal Gammopathy
    • Blood Disorder
    • Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ)
    • MGUS
    • Plasma Cell Disorder
    • Gammopathy of Undetermined Significance

    ICD-10 Codes:

    • D472: Monoclonal gammopathy

    Also known as:

    • Cancer Chemotherapy
    • Cancer Immunotherapy
    • Chemo treatment
    • Oncology chemotherapy
    • Cancer drug therapy
    • Oncology immunotherapy
    • Immune therapy for cancer

    ICD-10 Codes:

    • Z5111: Encounter for antineoplastic chemotherapy
    • Z5112: Encounter for antineoplastic immunotherapy

    Also known as:

    • Prostate Cancer
    • Prostate Cancer Treatment (PDQ®)
    • Prostatic Carcinoma
    • Prostate Gland Cancer
    • Malignant Prostate Tumor

    ICD-10 Codes:

    • C61: Malignant neoplasm of prostate

    Also known as:

    • Essential Thrombocythemia
    • Platelet Disorder
    • Essential thrombocythemia
    • Chronic Myeloproliferative Neoplasms Treatment (PDQ)
    • ET
    • Primary Thrombocythemia
    • Hemorrhagic Thrombocythemia

    ICD-10 Codes:

    • D473: Essential (hemorrhagic) thrombocythemia

    Also known as:

    • Small B-cell Lymphoma
    • Lymphoma
    • Small Lymphocytic Lymphoma
    • SLL
    • B-cell Lymphoma

    ICD-10 Codes:

    • C8300: Small cell B-cell lymphoma, unspecified site

    Also known as:

    • Therapeutic Drug Monitoring
    • Drug level testing
    • Medication monitoring
    • Therapeutic drug management

    ICD-10 Codes:

    • Z5181: Encounter for therapeutic drug level monitoring

    Also known as:

    • Polycythemia vera
    • Bone Marrow Disease
    • Chronic Myeloproliferative Neoplasms Treatment (PDQ)
    • PV
    • Primary polycythemia
    • Erythremia

    ICD-10 Codes:

    • D45: Polycythemia vera

    Also known as:

    • Anemia
    • Low Red Blood Cell Count
    • Low Hemoglobin
    • Iron deficiency

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

    • Aplastic Anemia
    • Bone Marrow Failure Anemia
    • Marrow Aplasia

    ICD-10 Codes:

    • D619: Aplastic anemia, unspecified

    Which procedures does Dr. O'mahar perform as a Hematology / Oncology Specialist?

    As a Hematology / Oncology Specialist, procedures performed by a Dr. Shannon O'mahar may include:

    For detailed information, please contact Dr. O'mahar's office.

    Does Dr. O'mahar accept my insurance?

    Dr. O'mahar accepts most major insurance plans. Important: Please call our office at (608) 410-2700 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. O'mahar accept in Madison, WI?

    Dr. O'mahar in Madison, WI accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • CVS Health (formerly Aetna)

    • Dean Health Plan

    • Department of Defense / Tricare

    • Elevance Health Inc. (formerly Anthem)

    • Medicare

    • Physicians Mutual Insurance Company

    • State of Wisconsin

    • UnitedHealthcare

    • Wisconsin Physicians Health (WPS)

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    Where is Dr. O'mahar's office located?

    Dr. Shannon O'mahar's Primary Practice

    1211 Fish Hatchery Rd

    Madison, WI 53715

    (608) 410-2700

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    Dr. Shannon O'mahar's Practice 2

    3200 E Racine St

    Janesville, WI 53546

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    Dr. Shannon O'mahar's Practice 3

    1200 John Q Hammons Dr Ste 400

    Madison, WI 53717

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

    Dr. O'mahar's National Provider Identifier (NPI) number is 1366569899.

    What common questions do patients ask about Dr. O'mahar?

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

    What is Dr. Shannon O'mahar's specialty?

    Dr. O'mahar is a Hematology / Oncology Specialist near Madison, WI. An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available. Contact Dr. O'mahar to book an appointment today.

    Is this Dr. Shannon O'mahar affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. O'mahar is affiliated with SSM Health St. Mary's Hospital - Madison 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 Hematology / Oncology Specialist?

    Explore Hematology / Oncology Specialist 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 Shannon O'mahar accepting new patients in Madison, WI?

    Yes, Dr. Shannon O'mahar is accepting new patients at this time.

    Does Dr. Shannon O'mahar offer online booking?

    Please contact Dr. O'mahar's office at (608) 410-2700 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Shannon O'mahar?

    Please contact Dr. O'mahar's office at (608) 410-2700 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Shannon O'mahar have?

    Dr. Shannon O'mahar is certified by the American Board of Internal Medicine.

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