
Margaret O'Brien, RD
EndocrinologyBariatric SurgeryDietetics
Highlights
Age Groups Seen
- Adults
Languages
- English
Provider Gender
FemaleAbout Margaret O'Brien and Banner Safety Practices
Care Philosophy
A trusting relationship is the foundation of my practice.
Interests & Activities
I enjoy spending time with friends and family.
Expertise
Education
- Medical Education: Kansas State University, 1979
- Graduate School: Kansas State University, 1979
Board Certifications
- Regis: National Certification Board for Diabetes Educator, 2015
- Regis: Commission on Dietetic Registration, 1980
Locations
- Banner - University Medicine Obesity and Bariatric Surgery Center
- 1441 North 12th Street, Floor 2, Phoenix, AZ 85006
- phone: 602-521-3050
- fax: 602-521-3046
- Banner - University Medicine Diabetes and Endocrinology Institute
- 1441 North 12th Street, Floor 2, Phoenix, AZ 85006
- phone: 602-521-5200
- fax: 602-521-5201
Testimonials
4.8 out of 5.0
160 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 10/19/2025
She was very encouraging to me and helpful.
- 5 out of 5 starsReviewed on 10/17/2025
Margaret O'Brien is a great dietitian and I've enjoyed our visits. Would highly recommend her to family or friends.
- 5 out of 5 starsReviewed on 9/9/2025
She is friendly and knowledgeable.
- 5 out of 5 starsReviewed on 9/1/2025
She is very knowledgeable and really cares about helping me with my nutrition needs and controlling my glucose levels.
- 5 out of 5 starsReviewed on 8/16/2025
Great provider every time I saw her she was polite answered all my questions
- 5 out of 5 starsReviewed on 7/6/2025
Her knowledge of the topic, her professionalism and her friendliness
- 5 out of 5 starsReviewed on 4/28/2025
Very nice and helpful on weight loss journey.
- 5 out of 5 starsReviewed on 3/19/2025
She hears me and empathizes and finds a solution
- 5 out of 5 starsReviewed on 3/16/2025
She knew what to ask pertaining to my case.
- 5 out of 5 starsReviewed on 3/4/2025
She was very helpful and listened to me
- 5 out of 5 starsReviewed on 12/16/2024
Margaret reenforced rules I already knew and gave me some alternatives that I tried.
- 5 out of 5 starsReviewed on 11/15/2024
She has great suggestions during weight loss appointments.
- 5 out of 5 starsReviewed on 9/25/2024
She is a very nice person. She makes you understand all that you need to. And get stuff done we need to be in a very timely manner
- 5 out of 5 starsReviewed on 9/25/2024
She really wants to help you make the right decisions concerning your health.
- 5 out of 5 starsReviewed on 8/7/2024
She answered any questions I had and is very good and thorough.
- 5 out of 5 starsReviewed on 7/6/2024
She was great.
- 5 out of 5 starsReviewed on 6/30/2024
Margaret is so kind and compassionate. Her knowledge and experience is superb. I have been to other dietitians recently where I had not learned anything. I left feeling I had paid to give the dietitian lessons. Not at Banner, info given is solid and current. All delivered with a smile! Great Job Banner??
- 5 out of 5 starsReviewed on 6/30/2024
Margaret is so kind and compassionate. Her knowledge and experience is superb. I have been to other dietitians recently where I had not learned anything. I left feeling I had paid to give the dietition lessons. Not at Banner, info given is solid and current. All delivered with a smile! Great Job Banner??
- 5 out of 5 starsReviewed on 5/29/2024
Professional and friendly and informative
- 5 out of 5 starsReviewed on 5/21/2024
She was very polite and she knows what she's talking about.
- 5 out of 5 starsReviewed on 5/13/2024
She is very helpful and answers all my questions, it's easy to get an appointment with her if needed! I just love her
- 5 out of 5 starsReviewed on 4/26/2024
She's a wonderful woman and she has given me lots of advice that helped me in my time of distress.
- 5 out of 5 starsReviewed on 4/24/2024
Very personable
- 5 out of 5 starsReviewed on 4/11/2024
She is amazing! She explains to me that are easy for me to understand! Margaret is amazing
- 5 out of 5 starsReviewed on 3/1/2024
She was direct and polite
- 5 out of 5 starsReviewed on 2/22/2024
She's friendly, knowledgeable and met my needs.
- 5 out of 5 starsReviewed on 12/27/2023
She listens and referred back to her notes from previous visits. She really cares and gives great advice. She was able to answer all my questions.
- 5 out of 5 starsReviewed on 11/25/2023
Dr. Obrien was kind, treated me respectfully, and explained my situation in a way I could understand. She provided me with guidance and useful information regarding my condition.
- 5 out of 5 starsReviewed on 11/18/2023
She addresses the issue at hand and allows time for the patient to ask questions.
- 5 out of 5 starsReviewed on 11/16/2023
She really took the necessary time to hear and address my concerns.
- 5 out of 5 starsReviewed on 11/15/2023
Ms. O'Brien was very friendly. She was knowledgeable in what we discussed and provided the next steps to what was expected of me as well as Banner. She was encouraging throughout our entire process.
- 5 out of 5 starsReviewed on 11/12/2023
Is very professional, listens, understands and is supporting me to get back on track.
- 5 out of 5 starsReviewed on 11/11/2023
Ms. Margaret is very professional and kind. She answers questions in a manner that is easily understood yet knowledgeable. I feel very comfortable and recommend Ms. Margaret to anyone going through this process.
- 5 out of 5 starsReviewed on 11/11/2023
Always pleasant
- 5 out of 5 starsReviewed on 9/4/2023
She addressed my concerns and was friendly!
- 5 out of 5 starsReviewed on 7/25/2023
Good
- 5 out of 5 starsReviewed on 7/14/2023
She was very informative and polite.
- 5 out of 5 starsReviewed on 6/15/2023
Margaret was very personable and easy to work with.
- 5 out of 5 starsReviewed on 5/22/2023
Was very nice, and gave me all information I needed.
- 5 out of 5 starsReviewed on 5/21/2025
She is very knowledgeable, friendly, and professional.
- 5 out of 5 starsReviewed on 8/20/2024
Very helpful and is to understand
- 4 out of 5 starsReviewed on 3/1/2024
She's helpful
- 4 out of 5 starsReviewed on 1/6/2024
She a good dietitian.
- 4 out of 5 starsReviewed on 11/12/2023
She was very knowledgeable and understanding towards my problems. She was going to send a email i have not received it yet.
Similar Providers
Banner - University Medicine Diabetes and Endocrinology Institute
1441 North 12th Street, Floor 2, Phoenix, AZ 85006
Banner Health Center plus at Arcadia
4200 East Camelback Road, Suite 201, Phoenix, AZ 85018

