5
1 Rating
Summary
Dr. Dennis O'Brien is a board-certified oncologist who has dedicated 25 years to treating cancer and blood disorders in patients. He earned his medical degree from the University of Cincinnati College of Medicine, building a strong foundation in comprehensive cancer care. His extensive experience spans more than two decades of helping patients navigate complex oncological conditions. Dr. O'Brien is fluent in English.
Dr. O'Brien practices at Lutheran Hospital and provides specialized care at Riley Pediatric Cancer & Blood Disorders locations in Fort Wayne and Carmel, Indiana. He treats conditions such as iron deficiency anemia and acute lymphoblastic leukemia, while also helping patients manage nausea and vomiting related to cancer treatment. His expertise includes performing complete blood counts and white blood cell differentials to monitor patient progress. Patients consistently rate Dr. O'Brien highly, giving him an average score of 5.0 stars for his compassionate and thorough care.
Dr. O'Brien practices at Lutheran Hospital and provides specialized care at Riley Pediatric Cancer & Blood Disorders locations in Fort Wayne and Carmel, Indiana. He treats conditions such as iron deficiency anemia and acute lymphoblastic leukemia, while also helping patients manage nausea and vomiting related to cancer treatment. His expertise includes performing complete blood counts and white blood cell differentials to monitor patient progress. Patients consistently rate Dr. O'Brien highly, giving him an average score of 5.0 stars for his compassionate and thorough care.
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Quick Facts
- accepting new patients
- 25 years of experience
- 30 insurance plans accepted
- speaks English
- University Of Cincinnati College Of Medicine
- 3 specialties
- 5 areas of expertise
- 1 board certification
- 1 hospital affiliation
- 2 office locations
- Male
Office Locations
Dr. Dennis M O'brien has 2 locationsRiley Pediatric Cancer & Blood Disorders - Parkview Regional Medical Center
11104 Parkview Cir Suite 050Fort Wayne, IN 46845 Tel: (317) 688-4673
Mon7:30 am - 4:30 pm
Tue7:30 am - 4:30 pm
Wed7:30 am - 4:30 pm
Thu7:30 am - 4:30 pm
Fri7:30 am - 4:30 pm
SatClosed
SunClosed
Riley Pediatric Cancer & Blood Disorders - IU Health North Hospital
11700 N Meridian St Ste C240Carmel, IN 46032 Tel: (317) 688-4673
Mon7:30 am - 4:30 pm
Tue7:30 am - 4:30 pm
Wed7:30 am - 4:30 pm
Thu7:30 am - 4:30 pm
Fri7:30 am - 4:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Dennis M O'brien, MD | Tara Lynn Leland | Dr. Ryan Antonio Gonzales, MD | Dr. Charles Joseph Whalen, MD |
| Oncology | Nurse Practitioner | Oncology | Oncology |
| Accepts New Patients | Accepts New Patients | ||
| 25 Years of Experience | 23 Years of Experience | 35 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English, Spanish | Speaks English | |
| Fort Wayne , IN | Fort Wayne , IN | Fort Wayne , IN | Fort Wayne , IN |
| Med School: University Of Cincinnati College Of Medicine | Med School: University Of Santo Tomas Faculty Of Medicine And Surgery | Med School: University Of Rochester School Of Medicine & Dentistry | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Dennis M O'brien
Medical Specialties
Dr. Dennis M O'brien has the following 3 specialties
Specialty Expertise
Dr. Dennis M O'brien has the following 5 areas of expertise
Certifications, License, & Education
25 Years Experience
MEDICAL LICENSE
Medical Doctor, Indiana, 2027, Active
EDUCATION & TRAINING
Medical School
University Of Cincinnati College Of MedicineGraduated in 2001
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Frequently Asked Questions
- What languages does Dr. Dennis O'brien speak?
- Dr. Dennis O'brien speaks English.
- Which hospitals is Dr. Dennis O'brien affiliated with?
- Dr. Dennis O'brien is affiliated with Lutheran Hospital.
- How can I make an appointment with Dr. Dennis O'brien?
- You can find contact information for Dr. Dennis O'brien here on Vitals.
- Does Dr. Dennis O'brien accept virtual/telehealth appointments?
- Dr. Dennis O'brien has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Dennis O'brien's office located?
- Dr. Dennis O'brien's office is located at 11104 Parkview Cir Suite 050, Fort Wayne, IN, 46845.
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