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Dr. Shannon O'Mahar, MD

Hematology
4.0 (4)
Accepting new patients
18 years of experience

Offers telehealth

Overview

Dr. Shannon O'Mahar, MD is a Hematology Specialist in Janesville, WI. They specialize in Hematology, has 18 years of experience. They graduated from Washington Univ Sch of Med and is affiliated with Prairie Ridge Health, Sauk Prairie Hospital, Ssm Health Saint Clare Hospital Baraboo, Ssm Health Saint Mary's Hospital Janesville, Ssm Health Saint Mary's Hospital Madison, Stoughton Hospital and Upland Hills Health.

Dr. O'Mahar works at SSM Health in Janesville, WI with other offices in Madison, WI. They frequently treat conditions like Myeloma, Anemia and Myelodysplastic Syndromes along with other conditions at varying frequencies. They are accepting new patients and accepts Aetna, Anthem and Anthem Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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User Ratings (of at least 4.0)
Insurance Accepted
Headshot Available
Accepting New Patients
Conditions Treated and Procedures Performed

Locations

  1. 1
    Ssm Health St Mary's Hospital - Janesville
    3200 E Racine St, Janesville, WI 53546 Icon Directions Right Arrow Directions Phone Icon (608) 371-8000
  2. 2
    Ssm Health Cancer Care
    1200 John Q Hammons Dr Ste 400, Madison, WI 53717 Icon Directions Right Arrow Directions Phone Icon (608) 252-8000

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • Prairie Ridge Health
  • Sauk Prairie Hospital
  • Ssm Health Saint Clare Hospital Baraboo
  • Ssm Health Saint Mary's Hospital Janesville
  • Ssm Health Saint Mary's Hospital Madison
  • Stoughton Hospital
  • Upland Hills Health

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Myeloma
Anemia
Myelodysplastic Syndromes

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Myeloma Chevron Icon
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Anemia Chevron Icon
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Myelodysplastic Syndromes Chevron Icon
Acute Leukemia Chevron Icon
Myeloproliferative Disorders Chevron Icon
Polycythemia Rubra Vera Chevron Icon
Abdominal Pain Chevron Icon
Acute Myeloid Leukemia Chevron Icon
Acute Upper Respiratory Infection Chevron Icon
Anxiety Chevron Icon
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Arthritis Chevron Icon
Asthma Chevron Icon
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Back Pain Chevron Icon
Bleeding Disorders Chevron Icon
Chronic Lymphocytic Leukemia Chevron Icon
Chronic Pain Chevron Icon
COPD (Chronic Obstructive Pulmonary Disease) Chevron Icon
Dehydration Chevron Icon
Diabetes Type 2 Chevron Icon
Diarrhea Chevron Icon
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Dyslipidemia Chevron Icon
Dysphagia Chevron Icon
Enteritis Chevron Icon
Fever Chevron Icon
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Gastritis Chevron Icon
Heart Disease Chevron Icon
Hernia Chevron Icon
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Hyperlipidemia Chevron Icon
Hypertension Chevron Icon
Hypoglycemia Chevron Icon
Hypokalemia Chevron Icon
Hypothyroidism Chevron Icon
Iron Metabolism Disorders Chevron Icon
Leukocytosis Chevron Icon
Limb Swelling Caused by Fluid Overload Chevron Icon
Lipid Disorders Chevron Icon
Lymphocytosis Chevron Icon
Magnesium Metabolism Disorders Chevron Icon
Malaise and Fatigue Chevron Icon
Mineral Metabolism Disorders Chevron Icon
Nausea Chevron Icon
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Non-Hodgkin's Lymphoma Chevron Icon
Osteopenia Chevron Icon
Osteoporosis Chevron Icon
Painful Urination (Dysuria) Chevron Icon
Pancytopenia Chevron Icon
Polyuria Chevron Icon
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Rash Chevron Icon
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Sciatica (Not Due to Disc Displacement) Chevron Icon
Shortness of Breath Chevron Icon
Sinus Tachycardia Chevron Icon
Sinusitis Chevron Icon
Thrombocytosis Chevron Icon
Thyroid Goiter Chevron Icon
Tobacco Use Disorder Chevron Icon
Vitamin B Deficiency Chevron Icon
Wheezing Chevron Icon
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Abnormal Thyroid Chevron Icon
Acute Deep Vein Thrombosis (DVT) Chevron Icon
Acute Sinusitis Chevron Icon
Acute Tonsillitis Chevron Icon
Acute Venous Embolism Thrombosis Chevron Icon
Administrative Physical Chevron Icon
All Headaches (incl. Migraine) Chevron Icon
All Lymphoma Chevron Icon
Anal and Rectal Cancer Chevron Icon
Arthritis of the Elbow Chevron Icon
Asymptomatic Post-Menopausal Status Chevron Icon
Atherosclerosis Chevron Icon
Bladder Infection Chevron Icon
Blood Disorders Chevron Icon
Blood in Urine (Hematuria) Chevron Icon
Bone Cancer Chevron Icon
Bone Disorders Chevron Icon
Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma) Chevron Icon
Brain Cancer Chevron Icon
Breast Cancer Chevron Icon
Bronchitis Chevron Icon
Calcium Metabolism Disorders Chevron Icon
Cancer Chevron Icon
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Candidiasis of Skin and Nails Chevron Icon
Carcinoma in Situ Chevron Icon
Central Nervous System Lymphoma Chevron Icon
Cervical Cancer Chevron Icon
Chest Pain Chevron Icon
Chronic Fatigue Syndrome Chevron Icon
Chronic Myeloid Leukemia (CML) Chevron Icon
Chronic Sinusitis Chevron Icon
Coagulation Disorders (incl. Hemophilia) Chevron Icon
Colorectal Cancer Chevron Icon
Constipation Chevron Icon
Cough Chevron Icon
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Cryoglobulinemia Chevron Icon
Deep Vein Thrombosis (DVT) Chevron Icon
Dermatitis Chevron Icon
Diabetes Counseling Chevron Icon
Diabetes Mellitus, Secondary Chevron Icon
Diabetes With Renal Manifestations Chevron Icon
Diabetic Polyneuropathy Chevron Icon
Diverticulitis, Intestinal Chevron Icon
Diverticulosis, Intestinal Chevron Icon
Emphysema Chevron Icon
Enlarged Prostate (BPH) Chevron Icon
ENT Cancer Chevron Icon
Esophageal Cancer Chevron Icon
Familial Hypercholesterolemia Chevron Icon
Fibromyalgia Chevron Icon
Gas-Bloat Syndrome Chevron Icon
Gastroesophageal Reflux Disease (GERD) Chevron Icon
Genital Herpes Chevron Icon
Gout Chevron Icon
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Gynecologic Cancer Chevron Icon
Hair Loss Chevron Icon
Head and Neck Cancer Chevron Icon
Headache Chevron Icon
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Hemophilia Chevron Icon
Herpes Simplex Infection Chevron Icon
Hodgkin's Disease Chevron Icon
Hypercalcemia Chevron Icon
Hyperkalemia Chevron Icon
Hypotension Chevron Icon
Hypotension (Excluding Maternal) Chevron Icon
Immune Thrombocytopenic Purpura (ITP) Chevron Icon
Insomnia Chevron Icon
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Iodine Deficiency Chevron Icon
Itchy Skin Chevron Icon
Joint Pain Chevron Icon
Kidney Cancer Chevron Icon
Leg and Foot Ulcers Chevron Icon
Limb Pain Chevron Icon
Limb Swelling Chevron Icon
Liver Cancer Chevron Icon
Low Back Pain Chevron Icon
Low Blood Oxygen Level Chevron Icon
Lung Cancer Chevron Icon
Lymphoma Chevron Icon
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Lymphoma, Large-Cell Chevron Icon
Macroglobulinemia (incl. Waldenstrom's ) Chevron Icon
Malnutrition Chevron Icon
Mantle Cell Lymphoma Chevron Icon
Marginal Zone Lymphoma Chevron Icon
Melanoma Chevron Icon
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Menopausal and Postmenopausal Disorders Chevron Icon
Muscle Spasm Chevron Icon
Muscle Weakness Chevron Icon
Nail and Nail Bed Infection Chevron Icon
Neutropenia Chevron Icon
Nighttime Urination (Nocturia) Chevron Icon
Nodular Lymphoma Chevron Icon
Noninfectious Gastroenteritis and Colitis Chevron Icon
Nosebleed Chevron Icon
Obesity Chevron Icon
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Oral Cancer Chevron Icon
Osteoarthritis Chevron Icon
Osteoarthritis of Ankle and Foot Chevron Icon
Osteoarthritis of Hip Chevron Icon
Osteoarthritis of Hip and Thigh Chevron Icon
Osteoarthritis of Knee Chevron Icon
Osteoarthritis of Shoulder Chevron Icon
Osteoarthritis of Spine Chevron Icon
Ovarian Cancer Chevron Icon
Overweight Chevron Icon
Pericardial Disease Chevron Icon
Pneumonia Chevron Icon
Polymyalgia Rheumatica (PMR) Chevron Icon
Polyneuropathy Chevron Icon
Primary Central Nervous System Lymphoma Chevron Icon
Prostate Cancer Chevron Icon
Proteinuria Chevron Icon
Purpura Chevron Icon
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Radiculopathy (Not Due to Disc Displacement) Chevron Icon
Sarcoidosis Chevron Icon
Secondary Malignancies Chevron Icon
Sexually Transmitted Diseases (STDs) Chevron Icon
Skin Cancer Chevron Icon
Sleep Apnea Chevron Icon
Small Intestine Cancer Chevron Icon
Soft Tissue Sarcoma Chevron Icon
Squamous Cell Carcinoma Chevron Icon
Stomach and Small Intestine Cancer Chevron Icon
Testicular Cancer Chevron Icon
Thalassemia Chevron Icon
Throat Cancer (Hypopharyngeal) Chevron Icon
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Thrombosis Chevron Icon
Tonsillitis Chevron Icon
Transient Ischemic Attack (TIA) Chevron Icon
Urinary Incontinence Chevron Icon
Urinary Stones Chevron Icon
Urinary Tract Infection (UTI) Chevron Icon
Uterine Cancer Chevron Icon
Uterine Diseases Chevron Icon
Venous Embolism and Thrombosis Chevron Icon
Venous Insufficiency Chevron Icon
Vitamin B12 Deficiency Chevron Icon
Vitamin D Deficiency Chevron Icon
Check your insurance
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    Please double-check when making an appointment.

    View All Accepted Carriers

    • Aetna
    • Anthem
    • Anthem Blue Cross Blue Shield
    • AvMed
    • Blue Cross Blue Shield
    • CareFirst Blue Cross Blue Shield
    • Cigna
    • Dean Health Plan, Inc.
    • Medicare
    • MultiPlan
    • UnitedHealthCare

    * Please verify this information when scheduling an appointment.

    Ratings & Reviews
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    4.0
    Average provider rating
    Based on 4 ratings
    Patient Ratings (4)
    5 Star
    (3)
    4 Star
    (0)
    3 Star
    (0)
    2 Star
    (0)
    1 Star
    (1)
    Leave a review

    How was your appointment with Dr. O'Mahar?

    Feb 12, 2021
    Dr. O'Mahar is the best in the business! She has been absolutely wonderful to myself, and my family and has saved my life. Thank you Dr. O'Mahar!
    — Feb 12, 2021
    Read more reviews on Healthgrades
    Photo: Dr. Shannon O'Mahar, MD
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    • Total wait time (waiting & exam rooms)

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    About Dr. Shannon O'Mahar, MD

    Specialties
    • Hematology
    Specialties
    Years of Experience
    • 18 years of experience
    Years of Experience
    Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.

    Languages Spoken
    • English
    Languages Spoken
    NPI Number
    • 1366569899
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Fellowship
    • University of Wisconsin Hospital and Clinics
    Fellowship
    Residency
    • Barnes-Jewish Hospital
    Residency
    Internship
    • Barnes - Jewish Hospital
    Internship
    Medical Education
    • Washington Univ Sch of Med
    Medical Education
    Undergraduate School
    • Stanford U
    Undergraduate School

    Frequently Asked Questions

    Dr. Shannon O'Mahar, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. O'Mahar is offering online scheduling or call the provider’s office for more information.

    Dr. O'Mahar has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    Dr. O'Mahar has seen patients for Myeloma, Anemia and Myelodysplastic Syndromes, and more. You can see other conditions treated by Dr. O'Mahar on their profile. Please call the provider’s office to confirm all visit reasons.

    4 patients have reviewed Dr. O'Mahar. The overall rating for this provider is 4.0. You can read verified reviews and ratings and leave your own review based on your experience with Dr. O'Mahar.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. O'Mahar, there are benefits to both methods. A person calling to schedule an with Dr. O'Mahar appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

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