
Joseph Mashni, Jr., MD
Genitourinary Surgical OncologySurgical OncologyUrology
Highlights
Age Groups Seen
- Adults
Languages
- English
Provider Gender
MaleAbout Joseph Mashni, Jr. and Banner Safety Practices
Care Philosophy
I seek to bring accessible, expert care to each of my patients.
Specializing In
Robotic, laparoscopic, and open/conventional surgery for:
• Prostate Cancer
• Bladder Cancer
• Kidney Cancer
• Testicular Cancer
• And, other rare cancers of the genitourinary tract
Interests & Activities
When I have free time, I enjoy spending time with my family. I also like cooking, reading non-fiction, improving my golf handicap and playing with our dogs.
Research and Publications
Hospital Affiliations
Banner Gateway Medical Center
Preferred Phone Number
480-256-6444
Expertise
Education
- Fellowship: Memorial Sloan-Kettering Cancer Center, Urology, 2014
- Residency: William Beaumont Hospital of Royal Oak, Urology, 2012
- Internship: William Beaumont Hospital of Royal Oak, General Surgery, 2008
- Medical School: Loma Linda University School of Medicine, 2006
Board Certifications
- Urology: American Board of Urology, 2016
Video
Locations
- Banner MD Anderson Cancer Center, a department of Banner Thunderbird Medical Center
- 2946 East Banner Gateway Drive, Gilbert, AZ 85234
- Banner Gateway Medical Center - Banner MD Anderson Cancer Center
- 2946 East Banner Gateway Drive, Suite A, Gilbert, AZ 85234
Testimonials
4.9 out of 5.0
480 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 11/24/2025
I have always been pleased with the care I receive from Dr. Mashni.
- 5 out of 5 starsReviewed on 11/22/2025
Dr. Mashni has been my Dr. for 13 yrs. Although he is very professional, he is also like a carrying friend who explains everything in detail. Answers any concerns or questions I may have. He is also very respectful if my wife has any questions. He is the BEST! Bob Crawford
- 5 out of 5 starsReviewed on 11/22/2025
Professional, takes the time to explain current health situation as well as potential future issues, I trust his judgement
- 5 out of 5 starsReviewed on 11/20/2025
Was very informative let me know what I should with whatever procedure I had to do
- 5 out of 5 starsReviewed on 11/12/2025
Listens to my concerns
- 5 out of 5 starsReviewed on 10/28/2025
Personable, very professional & easy to like and trust
- 5 out of 5 starsReviewed on 10/24/2025
Very professional, informative, time spent explaining available services, allowing questions and answering with detailed easy to understand responses.
- 5 out of 5 starsReviewed on 9/25/2025
I have confidence that Joe is giving the best care possible.
- 5 out of 5 starsReviewed on 9/19/2025
Great Dr who has your best interests in mind, open and honest and will take the time necessary to explain everything
- 5 out of 5 starsReviewed on 9/14/2025
He was very professional and helped me relax before the surgery
- 5 out of 5 starsReviewed on 9/10/2025
I have utmost confidence in Dr. Mashni.
- 5 out of 5 starsReviewed on 9/9/2025
Very detailed, and took time to explain all aspects of potential treatment so I could make the best possible treatment choice based on my diagnosis and desired outcomes.
- 5 out of 5 starsReviewed on 9/8/2025
Explained procedure thoroughly. Caring when experiencing a little pain.
- 5 out of 5 starsReviewed on 9/7/2025
FABULOUS Doctor. He made me feel very safe and in great hands. Wonderful bedside manner! Would not hesitate to recommend Dr. Mashni to anyone!
- 5 out of 5 starsReviewed on 8/26/2025
Great overall experience!
- 5 out of 5 starsReviewed on 8/16/2025
Excellent doctor, excellent communication skills. And I believe that he genuinely cares about his patience. And communicates very well.
- 5 out of 5 starsReviewed on 8/11/2025
Upbeat, helpful, positive
- 5 out of 5 starsReviewed on 8/2/2025
Dr Mashni and his Nurse were knowledgeable and helpful in clarifying the options and what additional information we need for me to make the best informed decisions for my particular situation.
- 5 out of 5 starsReviewed on 7/27/2025
Very pleasant doctor
- 5 out of 5 starsReviewed on 7/26/2025
Dr. Mashni is a credit to the profession. He put my wife and I at ease with clearly discussing my situation and how he would treat it.
- 5 out of 5 starsReviewed on 7/25/2025
Very personable and a skilled urologist.
- 5 out of 5 starsReviewed on 7/22/2025
He works with a lot of Cancer patients on a daily basis, so seems knowledgeable.
- 5 out of 5 starsReviewed on 6/27/2025
Dr Mashni helped my brother deal with some serious health issues. My brother had nothing but great things to say about Dr Mashni, and even credited his early detection and medical treatment as to possibly saving his life. Do to Dr Mashni's great attitude and thoroughness, I switched to his practice even though it is across town. Great guy and doctor.
- 5 out of 5 starsReviewed on 6/24/2025
He was very kind and I could tell he cared
- 5 out of 5 starsReviewed on 6/14/2025
Dr. Mashni understands patients' and family needs. He always takes the time to answer any questions. Dr. Mashni is highly skilled in his field of medicine, giving us the confidence we need to complete our journey.
- 5 out of 5 starsReviewed on 6/14/2025
Cancer gone what more can you say
- 5 out of 5 starsReviewed on 6/10/2025
Good guy with a good attitude and plenty of experience
- 5 out of 5 starsReviewed on 6/10/2025
I am very satisfied with the service I received.
- 5 out of 5 starsReviewed on 6/8/2025
Dr Mashni is patient focused, he answered all my questions and his team also responded when I had a follow up questions
- 5 out of 5 starsReviewed on 5/6/2025
Extremely thorough and caring doctor. He made sure ask questions were answered and that my wife and I were comfortable with recommendation.
- 5 out of 5 starsReviewed on 5/3/2025
Dr. Mashni was straightforward in his diagnosis and I felt cared for.
- 5 out of 5 starsReviewed on 4/19/2025
Accomplished our goals
- 5 out of 5 starsReviewed on 4/16/2025
Very kind and informative
- 5 out of 5 starsReviewed on 4/8/2025
Great doctor and is very helpful on questions and concerns I had.
- 5 out of 5 starsReviewed on 4/8/2025
He is good
- 5 out of 5 starsReviewed on 4/6/2025
All has gone well with Dr Mashni and my cancer so far.
- 5 out of 5 starsReviewed on 3/30/2025
He is very direct and in my opinion he is an outstanding Dr. He cares about his patients!
- 5 out of 5 starsReviewed on 3/8/2025
Dr Mashni was friendly, knowledgeable and, and thorough.
- 5 out of 5 starsReviewed on 3/3/2025
Best bedside manner ever.
- 5 out of 5 starsReviewed on 2/19/2025
Understand and caring. I'm so grateful to have him for my doctor.
- 5 out of 5 starsReviewed on 2/11/2025
Dr Mashni gave me the information I needed. I live in Salt LAKE City and will travel to see him as needed. Very happy. Not because I have cancer but have the right doctor
- 5 out of 5 starsReviewed on 2/10/2025
Can't put into words how grateful I am for Dr. Mashni. The way he explained everything late terms without me, even having the ass made all the difference in the world.
- 5 out of 5 starsReviewed on 2/8/2025
He was very open to my needs.
- 5 out of 5 starsReviewed on 2/2/2025
Patient, caring, knowledgeable. Felt like i was the only patient in the hospital.
- 5 out of 5 starsReviewed on 2/2/2025
He explained the results of my latest lab work and shared his recommendations
- 5 out of 5 starsReviewed on 1/27/2025
Competent and knowledgeable
- 5 out of 5 starsReviewed on 1/23/2025
He is a great Dr. I highly Recommend Dr. Mashni and his team. They are very professional and knowledgeable.
- 5 out of 5 starsReviewed on 1/21/2025
He was able to describe my condition treatment options in terms I could understand. Gave me all the time I needed to ask questions.
- 5 out of 5 starsReviewed on 1/18/2025
Skilled, top notch doctor.
- 5 out of 5 starsReviewed on 1/14/2025
Dr Mashni is so through and precise about treatment. Communicates perfectly about treatment.
- 5 out of 5 starsReviewed on 1/11/2025
Dr Mashni is an excellent Dr. I was thrilled he was able to adjust my health problem quickly and successfully
- 5 out of 5 starsReviewed on 1/1/2025
Professional and knowledgeable Dr.
- 5 out of 5 starsReviewed on 12/27/2024
He deserves it
- 5 out of 5 starsReviewed on 12/24/2024
Dr. Mashni was responsible for diagnosing my Prostate Cancer. He is an excellent surgeon and exhibits a true caring for his patients. I credit Dr. Mashni with allowing me to continue with a productive lifestyle. Without him I don't believe I would be here to write this.
- 5 out of 5 starsReviewed on 12/23/2024
I am very satisfied with the service provided to me by Joseph Mashni.
- 5 out of 5 starsReviewed on 12/14/2024
I'm fine, Dr. Mashni very thorough and thoughtful patient and emphatic. He make sure I'm well informed have a understanding of what I'm going through and what I can look forward to, and just completely puts me at ease.
- 5 out of 5 starsReviewed on 12/11/2024
Very knowledgeable, friendly, skilled surgeon. Answered all my questions. Reputation for being one of the best oncologic urologists in the Phoenix area. My surgery went very well
- 5 out of 5 starsReviewed on 12/10/2024
Great Doctor Who takes his time and explains everything in detail
- 5 out of 5 starsReviewed on 11/26/2024
Great doctor
- 5 out of 5 starsReviewed on 11/25/2024
He explained everything good.
- 5 out of 5 starsReviewed on 11/25/2024
Great Doctor
- 5 out of 5 starsReviewed on 11/12/2024
He explains things completely about my cancer so I can understand.
- 5 out of 5 starsReviewed on 11/12/2024
He is a great doctor. I'm pleased with his results in my care.
- 5 out of 5 starsReviewed on 11/7/2024
I feel confident in his abilities and I like the way he deals with me as a patient and person.
- 5 out of 5 starsReviewed on 11/4/2024
100% professional
- 5 out of 5 starsReviewed on 10/26/2024
I trust him
- 5 out of 5 starsReviewed on 10/21/2024
Caring, compassionate, and takes time to answer all your questions
- 5 out of 5 starsReviewed on 10/21/2024
Outstanding physician. So glad I found him years ago.
- 5 out of 5 starsReviewed on 10/21/2024
Dr. Mashni is an excellent and trusted doctor.
- 5 out of 5 starsReviewed on 10/19/2024
Knowledgeable, caring.
- 5 out of 5 starsReviewed on 10/18/2024
Dr. Mashni is very nice and explains things in detail when talking to you.
- 5 out of 5 starsReviewed on 10/15/2024
Professional and caring
- 5 out of 5 starsReviewed on 10/12/2024
He was very personable. Took his time to make sure we understood everything and answered all questions. He wasn't rushed and made us feel very comfortable.
- 5 out of 5 starsReviewed on 10/12/2024
Thorough, professional, and well informed.
- 5 out of 5 starsReviewed on 10/12/2024
Very informative and no baloney.
- 5 out of 5 starsReviewed on 9/29/2024
He is a great Dr. who cares a great deal about his patients. He always explains what he is doing and why. Makes you feel so comfortable.
- 5 out of 5 starsReviewed on 9/26/2024
He is a great doctor. He listens to you and answers all your questions.
- 5 out of 5 starsReviewed on 9/24/2024
Drs Mashni and Miller were both involved in my operation. I give both of them high scores for their patience and understanding of y situation, both calmed anxieties I had before and after the procedure.
- 5 out of 5 starsReviewed on 9/22/2024
Dr Mashni was one of the most knowledgeable and caring doctors that I've ever seen. I trust his evaluations and his knowledge. He spent time explaining in detail the options for my care.
- 5 out of 5 starsReviewed on 9/21/2024
He is by far the best in the world!
- 5 out of 5 starsReviewed on 9/21/2024
Good listener, very professional
- 5 out of 5 starsReviewed on 9/20/2024
Dr. Mashni's examinations are thorough and he has a pleasant manner.
- 5 out of 5 starsReviewed on 9/17/2024
Dr Mashni is a young smart and dedicated doctor who is highly confident and a talented surgeon.
- 5 out of 5 starsReviewed on 9/14/2024
In my opinion he's the best doctor I have ever had, he cares, he listens to my concerns, and provides the best care
- 5 out of 5 starsReviewed on 9/12/2024
Remarkable Dr. I'm so grateful my primary recommended him to me.
- 5 out of 5 starsReviewed on 9/11/2024
He was well prepared with my medical history and had good recommendations for moving forward. He also gave us time to ask any questions.
- 5 out of 5 starsReviewed on 9/4/2024
I got the best Doctor with Dr. Mashni
- 5 out of 5 starsReviewed on 9/2/2024
Great Doctor
- 5 out of 5 starsReviewed on 8/27/2024
Dr. Mashni and his assistant made us feel relaxed, welcome, and did a wonderful job of explaining my illness. He answered all of our questions and offered the possible avenues of treatment.
- 5 out of 5 starsReviewed on 8/25/2024
He was great. Explained everything and made me feel at ease about my problem.
- 5 out of 5 starsReviewed on 8/19/2024
He is a very personable Professional.
- 5 out of 5 starsReviewed on 8/9/2024
Great personality and good manners.
- 5 out of 5 starsReviewed on 8/8/2024
Dr. Mashni is very attentive to patient needs and concerns, plus very thorough in his assessments and conclusions. Very patient friendly and professional in every way!
- 5 out of 5 starsReviewed on 8/1/2024
Very informative, knowledgeable, and to the point.
- 5 out of 5 starsReviewed on 7/31/2024
He knows his job.
- 5 out of 5 starsReviewed on 7/30/2024
Best doctor I have met always upbeat and willing to help.
- 5 out of 5 starsReviewed on 7/29/2024
Dr. Mashni is a great surgeon
- 5 out of 5 starsReviewed on 7/27/2024
Dr. Mashni is knowledgeable and personable. He was well prepared for my appointment and wants to treat me with the least invasive procedure possible.
- 5 out of 5 starsReviewed on 7/16/2024
Excellent staff and friendly service