5
2 Ratings
Summary
Dr. Shannon O'mahar is an oncologist who specializes in treating various forms of cancer. She earned her medical degree from Washington University in St. Louis School of Medicine and has been practicing medicine for 21 years. Dr. O'mahar speaks English.
Dr. O'mahar is affiliated with SSM Health Saint Marys Hospital Madison, Edgerton Hospital and Health Services, and SSM Health Saint Marys Hospital Janesville, with practice locations in Madison and Janesville, Wisconsin. She focuses on treating acute and chronic leukemia as well as melanoma. Her expertise includes performing complete blood counts and specialized diagnostic tests to monitor blood disorders. Patients have given Dr. O'mahar an average rating of 5.0.
Dr. O'mahar is affiliated with SSM Health Saint Marys Hospital Madison, Edgerton Hospital and Health Services, and SSM Health Saint Marys Hospital Janesville, with practice locations in Madison and Janesville, Wisconsin. She focuses on treating acute and chronic leukemia as well as melanoma. Her expertise includes performing complete blood counts and specialized diagnostic tests to monitor blood disorders. Patients have given Dr. O'mahar an average rating of 5.0.
AI-generated from data on this provider profile.
Quick Facts
- accepting new patients
- 21 years of experience
- speaks English
- Washington University In St Louis School Of Medicine
- 2 specialties
- 15 areas of expertise
- 3 board certifications
- 3 hospital affiliations
- 2 office locations
- Female
Office Locations
Dr. Shannon E O'mahar has 2 locationsSSM Health Cancer Care
1211 Fish Hatchery RdMadison, WI 53715 Tel: (608) 410-2700
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
SSM Health Cancer Care
3200 E Racine StJanesville, WI 53546 Tel: (608) 410-2700
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  | | |
| Dr. Shannon E O'mahar, MD | Dr. John Patrick Sheehan, MD | Dr. Toby C Campbell, MD | Dr. Howard Harry Bailey, MD |
| Oncology | Hematology | Oncology | Oncology |
| Accepts New Patients | |||
| 21 Years of Experience | 41 Years of Experience | 25 Years of Experience | 41 Years of Experience |
| Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | Speaks English |
| Madison , WI | Madison , WI | Madison , WI | Madison , WI |
| Med School: Washington University In St Louis School Of Medicine | Med School: University Of Missouri Columbia School Of Medicine | Med School: University Of Virginia School Of Medicine | Med School: University Of North Dakota School Of Medicine & Health Sciences |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Shannon E O'mahar
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Shannon E O'mahar has the following 2 specialties
Specialty Expertise
Dr. Shannon E O'mahar has the following 15 areas of expertise
Certifications, License, & Education
21 Years Experience
MEDICAL LICENSE
Medical Doctor, Wisconsin, 2025, Expired
EDUCATION & TRAINING
Medical School
Washington University In St Louis School Of MedicineGraduated in 2005
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Frequently Asked Questions
- Which hospitals is Dr. Shannon O'mahar affiliated with?
- Dr. Shannon O'mahar is affiliated with Ssm Health Saint Marys Hospital Madison, Edgerton Hospital And Health Services, and Ssm Health Saint Marys Hospital Janesville.
- What languages does Dr. Shannon O'mahar speak?
- Dr. Shannon O'mahar speaks English.
- How can I make an appointment with Dr. Shannon O'mahar?
- You can find contact information for Dr. Shannon O'mahar here on Vitals.
- Does Dr. Shannon O'mahar accept my insurance?
- You can see the insurance plans that Dr. Shannon O'mahar accepts on their Vitals profile.
- Is Dr. Shannon O'mahar accepting new patients?
- Dr. Shannon O'mahar is accepting new patients on Vitals. View Dr. Shannon O'mahar's profile on Vitals to make an appointment.
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