
Highlights
Age Groups Seen
- Adults
Languages
- English
Provider Gender
MaleAbout John Roller and Banner Safety Practices
Care Philosophy
Every patient encounter is a mission to provide the utmost guidance, support and compassion.
Specializing In
Hematology
Medical Oncology
Head & Neck Oncology
Thoracic Oncology
Interests & Activities
I love spending time staying active - tennis, volleyball and running.
As a native North Dakotan, I am very excited to experience an Arizona winter as well as the many hiking opportunities.
Hospital Affiliations
Banner - University Medical Center Phoenix
Expertise
Education
- Fellowship: University of Kansas School of Medicine-KC, Hematology/Oncology, 2023
- Residency: University of Kansas Medical Center, Internal Medicine, 2019
- Medical School: University of North Dakota School of Medicine, 2016
Board Certifications
- Hematology: American Board of Internal Medicine/Hematology, 2023
- Medical Oncology: American Board of Internal Medicine/Medical Oncology, 2023
- Internal Medicine: American Board of Internal Medicine, 2019
Video
Locations
- Banner MD Anderson Cancer Center at Banner University Medical Center - Phoenix
- 925 East McDowell Road, Phoenix, AZ 85006
- phone: 602-521-3700
- fax: 602-521-3701
- Banner Gateway Medical Center - Banner MD Anderson Cancer Center
- 2946 East Banner Gateway Drive, Suite A, Gilbert, AZ 85234
- phone: 480-256-6444
- fax: 480-256-3359
Testimonials
5 out of 5.0
186 ratingsAll patient experience ratings and testimonials are submitted by actual patients and verified by a leading independent customer experience company. Patient identities are withheld to ensure confidentiality and privacy.
- 5 out of 5 starsReviewed on 12/12/2025
Top notch in their field a the experience shows in the care you receive! 100%
- 5 out of 5 starsReviewed on 12/7/2025
A sharp, very knowledge person with an excellent manner
- 5 out of 5 starsReviewed on 12/4/2025
He was knowledgeable, friendly, straightforward, and reassuring. I felt as if he was truly interested in helping me attain my best outcomes.
- 5 out of 5 starsReviewed on 11/22/2025
Nice guy, wrong doctor. I'm terminal and another waste of time and tax payers money. Nothing was done.
- 5 out of 5 starsReviewed on 11/21/2025
Thank you Dr. Roller for your outstanding care. You're very knowledgeable, compassionate, and very friendly. You show genuine concern for me as a whole person, not just a medical case
- 5 out of 5 starsReviewed on 11/17/2025
Dr Roller spends time with you explains to you what is going on and has great bedside manner
- 5 out of 5 starsReviewed on 11/16/2025
He's personable, knowledgeable and makes me feel at ease.
- 5 out of 5 starsReviewed on 11/14/2025
Knows his business Dr Roller very professional and takes the time to answer and explains my questions.
- 5 out of 5 starsReviewed on 11/10/2025
Very nice and seemed to actually care
- 5 out of 5 starsReviewed on 10/27/2025
He did a great job he answered all my questions
- 5 out of 5 starsReviewed on 10/21/2025
He explained what the test could reveal, and how it was done do that I felt comfortable getting it done.
- 5 out of 5 starsReviewed on 9/18/2025
He's been fantastic at overseeing my post-cancer care. He's kind, considerate, and thorough in his review and providing me the information I need.
- 5 out of 5 starsReviewed on 9/10/2025
He was informative and caring
- 5 out of 5 starsReviewed on 8/26/2025
He is very patient and calm. Very professional and knowledgeable.
- 5 out of 5 starsReviewed on 8/17/2025
He answered all question and he explained some of medical questions i hadn't even thought of. Plus great bedside manners
- 5 out of 5 starsReviewed on 8/14/2025
He explained things in terms we could easily understand
- 5 out of 5 starsReviewed on 7/28/2025
He was very nice and down to earth not intimidating or arrogant, good listener.
- 5 out of 5 starsReviewed on 7/27/2025
He's thorough and polite, informative. Cares about his patients
- 5 out of 5 starsReviewed on 7/26/2025
He listened to me and we developed a plan of action.
- 5 out of 5 starsReviewed on 7/18/2025
Dr. Roller familiarizes himself with my current medical status BEFORE entering room (I receive treatments at Gilbert location under auspices of another oncologist.) He always has a smile on his face, a positive discussion of my treatments and a willing listener to any concerns. I also like the outgoing cheerfulness of intake person, Mira. She asks about family members when they aren't with me, a very caring team. We are getting to know the new nurse and feel she will be an asset too.
- 5 out of 5 starsReviewed on 7/14/2025
He's a great doctor and listen to my questions
- 5 out of 5 starsReviewed on 7/3/2025
I feel that Dr Roller is caring, polite and follows through with his on time appointments.
- 5 out of 5 starsReviewed on 6/30/2025
He answered all my questions and I had a lot
- 5 out of 5 starsReviewed on 6/30/2025
Very personable and easy to talk to.
- 5 out of 5 starsReviewed on 6/24/2025
The lines of communication are always open. I have never not been unable to get ahold of him! He also follows up on every problem I have had thru my journey and I can't thank him enough!
- 5 out of 5 starsReviewed on 6/18/2025
Caring, patient, thorough, doctor
- 5 out of 5 starsReviewed on 6/2/2025
He made me feel a lot better
- 5 out of 5 starsReviewed on 5/2/2025
Dr. Roller keeps you informed about your medical condition.
- 5 out of 5 starsReviewed on 4/27/2025
He is personable and listens to his patients.
- 5 out of 5 starsReviewed on 4/23/2025
Very knowledgeable, very caring
- 5 out of 5 starsReviewed on 4/10/2025
Very thorough and kind and caring
- 5 out of 5 starsReviewed on 4/8/2025
Dr Roller is very knowledgeable and skilled at presenting information and calming my fears.
- 5 out of 5 starsReviewed on 3/28/2025
He has a wonderful bedside manner, makes you feel very comfortable.
- 5 out of 5 starsReviewed on 3/24/2025
Dr Banner has extremely good bedside manners. He is a great listener and communicator, and connects to his patients. He is friendly and kind. Lastly, his details in reference to me as his patient are impeccable. He makes me feel very comfortable with being open about my medical issues and he makea sure I am getting proper care.
- 5 out of 5 starsReviewed on 3/24/2025
When I see Dr Roller he takes his time he talks to me like I'm a human being not like just some cow that strolled in off the street he takes time to hear what's wrong and to help me fix what's wrong I'm very honored to have met a man and be treated by him
- 5 out of 5 starsReviewed on 3/24/2025
Treatment and way he inter acts with me
- 5 out of 5 starsReviewed on 3/20/2025
He has great bedside manner, very knowledgeable about treatment protocols and seems to care about me and my family personally.
- 5 out of 5 starsReviewed on 3/13/2025
He is a great doctor and cares about his patients.
- 5 out of 5 starsReviewed on 3/10/2025
Dr. Roller was very thorough and patient and kind
- 5 out of 5 starsReviewed on 2/25/2025
Great doctor
- 5 out of 5 starsReviewed on 2/24/2025
Thorough, professional, and kind
- 5 out of 5 starsReviewed on 2/15/2025
Great job
- 5 out of 5 starsReviewed on 2/4/2025
He made eye contact and listened to me when i answered his questions. He seemed prepared for my appointment
- 5 out of 5 starsReviewed on 2/2/2025
He was very patient and made everything very clear to understand
- 5 out of 5 starsReviewed on 1/23/2025
Dr. Roller answered all my questions and he made sure I understood what he was talking about!
- 5 out of 5 starsReviewed on 1/19/2025
Caring and attentive practitioner.
- 5 out of 5 starsReviewed on 1/16/2025
Dr John Roller was very sharp pinpointing, and ruling out some things that I was concerned with. He is a very sharp physician. He made me confident in his care.
- 5 out of 5 starsReviewed on 1/12/2025
Dr Roller has understanding and explains all treatments and results of exams carefully so you understand it is also a caring person
- 5 out of 5 starsReviewed on 12/26/2024
Took his time to go over issues that I was concerned about.
- 5 out of 5 starsReviewed on 12/20/2024
He was able to speak to me about my issues because he was able to view my chart and records. He helped me out a lot, have me reason to smile when leaving to go get my labs done.
- 5 out of 5 starsReviewed on 12/19/2024
He was very compassionate and informative. I truly believe he cares about his patients.
- 5 out of 5 starsReviewed on 12/19/2024
Very knowledgeable. Also friendly.
- 5 out of 5 starsReviewed on 12/14/2024
He cares about his patients
- 5 out of 5 starsReviewed on 12/13/2024
Dr. Roller is truly concerned about getting my cancer under control and defeating it. Has answers to.my questions.
- 5 out of 5 starsReviewed on 12/6/2024
Thorough and caring
- 5 out of 5 starsReviewed on 11/25/2024
Shows compassion with action
- 5 out of 5 starsReviewed on 11/10/2024
Dr. Roller was pleasant, informed and to the point. He was assuring and made me feel comfortable.
- 5 out of 5 starsReviewed on 11/5/2024
He was very thorough and explained everything along with me.
- 5 out of 5 starsReviewed on 10/28/2024
John Roller, MD is completely compassion and has empathy for his patients. He provides excellent care with following a treatment plan.
- 5 out of 5 starsReviewed on 10/27/2024
Very attentive and thorough.
- 5 out of 5 starsReviewed on 10/22/2024
Very professional, answered questions, understood my concerns.
- 5 out of 5 starsReviewed on 10/20/2024
Outstanding knowledge and support.
- 5 out of 5 starsReviewed on 10/6/2024
He's has been there from day one, and has still there for me 24/7 ! And his team they are all tops! Thank you guys!
- 5 out of 5 starsReviewed on 10/5/2024
Had a wonderful attitude, listened to me, patiently answered all questions. Just all around nice guy.
- 5 out of 5 starsReviewed on 9/30/2024
Listen very well about my concerns
- 5 out of 5 starsReviewed on 9/26/2024
Very attentive, listens to everything.
- 5 out of 5 starsReviewed on 9/20/2024
Dr. Roller is very compassionate and has empathy. He does share treatment plan and follow through with my concerns. I'm Bless to have as my Doctor.
- 5 out of 5 starsReviewed on 9/12/2024
Was very well versed in my reason for visit. Dr Roller took his time explaining everything to my condition and different options available and set up the start of a treatment plan.
- 5 out of 5 starsReviewed on 9/12/2024
Attentive and caring medical practitioner who focuses on the patient's needs in the most expedient manner possible.
- 5 out of 5 starsReviewed on 9/12/2024
Knowledgeable, patient, explains tests/outcomes
- 5 out of 5 starsReviewed on 8/25/2024
He was clear and concise.
- 5 out of 5 starsReviewed on 8/22/2024
Very genuine and professional
- 5 out of 5 starsReviewed on 8/4/2024
He cares, and he listens.
- 5 out of 5 starsReviewed on 7/30/2024
I felt very at ease in discussing my symptoms and treatment with him.
- 5 out of 5 starsReviewed on 7/26/2024
Very attentive to details and overall reason for the visit.
- 5 out of 5 starsReviewed on 7/14/2024
Very good communication
- 5 out of 5 starsReviewed on 6/26/2024
Very knowledgeable
- 5 out of 5 starsReviewed on 6/24/2024
Dr. Roller is great. Could not ask for a better doctor.
- 5 out of 5 starsReviewed on 6/21/2024
Hes awesome and easy to talk too.
- 5 out of 5 starsReviewed on 6/13/2024
Muy buen doctor
- 5 out of 5 starsReviewed on 6/1/2024
Good Doctor
- 5 out of 5 starsReviewed on 5/20/2024
Knowledgeable and good bedside manner
- 5 out of 5 starsReviewed on 5/18/2024
Excellent Doctor in my opinion
- 5 out of 5 starsReviewed on 5/14/2024
Very personable, kind and patient. He explained my issue and all of the tests.
- 5 out of 5 starsReviewed on 4/27/2024
Answered all questions in people language. Plus a very nice person.
- 5 out of 5 starsReviewed on 4/25/2024
I liked him.
- 5 out of 5 starsReviewed on 4/5/2024
Knowledgeable, empathetic, caring, down-to-earth explanations.
- 5 out of 5 starsReviewed on 4/3/2024
He listens to everything you're saying and takes notes. Very thorough.
- 5 out of 5 starsReviewed on 3/19/2024
He was very helpful
- 5 out of 5 starsReviewed on 3/18/2024
He was great. Talked and listened to me.
- 5 out of 5 starsReviewed on 3/15/2024
Very caring and informative.
- 5 out of 5 starsReviewed on 3/8/2024
Dr. Roller is very professional and caring. He has been very thorough in answering my questions. I am at ease with him. I know he is very caring and understanding. He has great sympathy and a very kind nature. I am extremely happy that he is my doctor. He is an added comfort to me now and will be throughout this difficult time.
- 5 out of 5 starsReviewed on 9/14/2025
He seemed competent. He listened well and understood what I needed.
- 5 out of 5 starsReviewed on 8/4/2025
Dr Roller and his team are amazing! They're kind and compassionate and they really care about their patients.
- 5 out of 5 starsReviewed on 5/3/2025
Gave me time and information
- 5 out of 5 starsReviewed on 2/6/2025
Dr. Roller was very professional and caring.
- 5 out of 5 starsReviewed on 9/17/2024
Very knowledgeable and easy to follow complex explanations.