Patient Reviews
GI Alliance physicians are among the most reputable and distinguished gastroenterologists across the nation. Focused on clinical excellence and patient-centered care, our specialists seek to be the partner you need in your quest for better health. We value patient feedback and appreciate every review we receive from those we are privileged to treat. For your convenience, we have gathered a collection of reviews, stories, and testimonials provided by patients who have visited our practices. We welcome you to explore the feedback below to learn more about what it means to be a patient of GI Alliance.
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"Dr McCollum was a breath of fresh air. She was personable, took the time to sit with me and go over my needs, concerns and to explain a treatment plan. Not many like her left, I highly recommend!"
"Great office. Staff is great. Everything is explained. Dr. MacCollum is excellent. She explains in detail the steps so you understand it. After my colonoscopy she explained the outcome and showed me photos of what she found or didn't find. I highly recommend this practice."
"My first visit with a Dr. MacCallum and her staff was an excellent experience. The doctor was professional and easy to communicate with. She was not in a rush and had time to answer all my questions. Both she and her staff are all very personable and helpful. I am thankful for the referral to her office,"
"I have never felt so comfortable in consultation with a doctor. Dr. MacCollum was not only warm, friendly, and nonjudgmental, she was simultaneously thorough in her assessment while also transparent in explaining procedural standards. I rarely rate a doctor *before* I receive services but I already have complete confidence in her giving me the best medical care."
"Dr. MacCollum is friendly, listens and knowledgeable. I am fortunate to be under her care!"
"Awesome doctor, awesome staff! If you need a great gastroenterologist Dr. MacCollum is the one you want! Dr. MacCollum is attentive & professional."
"I would give Dr MacCollum and her office staff 10 stars if I could. Everyone I encountered was personable, professional and knowledgeable. Dr MacCollum is the best.......so down to Earth and takes time to listen and explain the next steps in the care process. It's clearly evident as to why she's a Top Doc."
"Dr. MacCollum is the best!! She spends so much time with you and makes you feel you’re the only patient she has that day!"
"Dr MacCollum is friendly and attentive. She answered all of my questions and didn't try to rush me out, like so many other doctors. Recommended!"
"Always a pleasurable visits."
"I had been searching for a gastroenterologist who I could believe in! Dr. MacCollum’s knowledge, honesty and sincere interest in my situation are the criteria I value and these have been evident. I am thankful for her!"
"Very caring"
"Dr MacCollum and staff are respectful, caring and professional. They take time to listen to you and your concerns, and questions. The environment is clean and comfortable. I would denfinitely recommend Arizona Digestive Health."
"The staff is friendly and professional. Dr.MacCollum is awesome!"
"I really appreciated the time that Dr. MacCollum took with me. She answered all my questions and concerns and made me feel completely at ease and well taken care of."
"Great service, the staff was so courteous, knowledgeable and caring. Dr. MacCollum was amazing, so attentive to my needs and made me feel really cared for. I will recommend her to anyone who is searching for a Gastroenterologist."
"Very personal, and caring I felt heard"
"I have had Dr. MacCollum perform my 5 years exams since 2013. She is an awesome communicator, kind and understanding. I would highly recommend her for any of your medical needs."
"DR MACCOLLUM SND HER STAFF ARE VERY PROFESSIONAL AND CARING. I HAVE REFERRED THEM TO OTHERS."
"A+++"
"When my Gastro doctor retired my sister-in-law recommended Dr MacCollum. Even though it was a bit of a drive for me, I am beyond pleased with her. She is kind, thoughtful and really listened."
"It was my first visit with Dr. MacCollum. She was polite and understanding. She asked effective questions to determine what may be needed to diagnose the issues I was having. Her medical assistant, P.J., was also polite. I do plan to come back in the future."
"I always have a good visit with Dr. MacCollum, she always explains everything, and always answers any questions I my have, I never feel rushed."
"Friendly staff and the meet and greet with the doctor made for a great impression."
"Dr MacCollum was one of the best doctors I have ever been seen by. Not only professional and concerned about my medical issue but was also so personable. I trust her opinion and outlook. Can’t wait for my next visit. Staff was also so accommodating and very nice."
"Dr. MacCollum was very informative. She took the time to listen to my questions and concerns. Besides that, the customer service was excellent and the staff was very friendly."
"Dr. MacCollum is wonderful. She actually listens and gives usable advice. I feel I can trust her assessments of my medical needs."
"Dr. MacCollum brings ease and comfort to what is often a battle in the realm of modern day medicine. As a physician, world class - even diagnosing a condition out of her realm of expertise, an issue missed by five, yes FIVE, physicians. She has assembled a professional staff that is not only expert but warm & welcoming and PJ runs a tight ship. Three referrals echo my sentiments."
"excellent experoence"
"Dr. MacCollum is so thorough and genuinely interested in me as a person, not just a patient or a chart! I would and will highly recommend her to anyone!"
"Great doctor. Felt safe during colonoscopy and EGD. She is thorough and helping me with referrals to surgeons for the care I need."
"My mom and I both go to Barbara MacCollum. She is so nice and the appointment didn’t feel rushed. She truly cares about her patients and their well being and I’m so happy to have gotten an appointment so quickly with her."
"All Good 😊"
"I have had an excellent experience with Dr MacCollum."
"I have had an excellent experience with Dr MacCollum."
"Dr MacCollum is great! She is professional and thorough. She takes time to talk with me and patiently answers my questions. She cares about me as an individual, not just another patient in her schedule. The staff is warm and inviting. Wait time for an appointment is minimal. She has been on time for most of my appointments. My only complaint is that she doesn't have an office in the east valley. But she is worth the drive into Phoenix!"
"The doctor and office staff were excellent, very polite and professional."
"Always takes time to talk to you. Carting doctor. I have been a patient for many years. Never treated badly."
"Dr. MacCollum is so detailed, compassionate, and sincere. You always walk out of the office feeling very satisfied with your care."
"She is very caring and detailed provider. Office is well organized."
"I highly recommend Dr. MacCollum. She is knowledgeable and friendly and listens. Her staff is welcoming, friendly and efficient. I have received excellent care from this practice."
"Dr.maccollum is a very kind and respectful doctor and cares a lot about her patients"
"I highly recommend Dr. MacCollum. I am a registered nurse and have high expectations on my providers. Dr. MacCollum is exceptional. She worked with me to get an appointment in a short time frame since I was traveling out of state. She answered all of my questions and was so helpful. I am traveling right now and will gladly fly to AZ to see this doctor!"
"Went to see Dr. MacCollum with pain and intestinal issues. She listens and guides you in the best and safest direction possible! I trust her completely, knowing she cares and has the knowledge and experience I need to get better!"
"I have been seeing Dr. McCollum since 2011 and has been very professional and greatest GI dr I have been with."
"Dr MacCollum is the best. She’s personable and has a gentle decorum. Everyone in the office is friendly and helpful. I really trust in my care here."
"What I liked was about about the doctor was that she actively listened till I had to say him didn’t dismiss any of my concerns. She was very friendly very easy to talk to, and very professional."
"Knowledgeable Dr but difficult to get an appointment with when you aren’t feeling well."
"She really listens and wants to come up with solutions that work for you. I appreciate her so much for that."
"Dr MacCollum is always easy to see and very clear and helpful in explaining a new problem along with plan to help alleviate the problem."
"I went to see Dr. MacCollum for a consult To do a screening colonoscopy. I was very grateful for her patience and time. She answered all my questions and explained the procedure at length."
"I just love Dr. MacCollum! She's so nice and makes you feel very comfortable. She did my colonoscopy and made the whole process so easy! Her office staff and PJ, who does the surgical scheduling, are all great. For anyone that is looking for a wonderful doctor, I would highly recommend her! I am so thankful that I have her as my doctor."
"Very nice and knowledgeable doctor. It was all around a pleasant experience at her office."
"Dr. MacCollum and Arizona Digestive Health have been a part of my care team for years. They're kind, friendly, informative and make me feel like an individual rather than a number on a chart. Thank you team (PJ too!!), for your continued care and support."
"I have seen Dr. MacCollum for a long time and recommended her to friends. She spends time with you and actually hears what you're saying. Both Dr. MacCollum and her office staff are the best."
"Dr. MacCollum and her staff are extremely friendly and answered all of my questions. I would definitely recommend their office."
"Dr. MacCollum is kind, thorough and really listens to be sure the right treatment is chosen."
"Dr. MacCollum is a knowledgable, skilled and compassionate practitioner. I have confidently referred family and friends to her practice for many years."
"Dr. McCollum is great!"
"Dr MacCollum and staff were great, informative and made the whole experience so much more at ease."
"Dr Maccollum always takes her time to listen to your complaints. You never feel hurried. She is the best doctor in this field. I would never consider going anywhere else"
"Dr. MacCollum was excellent. Made me feel comfortable. Process was organized, friendly & quick. Put off a colonoscopy for years.... would highly recommend."
"DR McCollum listens to your concearns"
"Dr MacCollum is very thorough and a great listener. The office staff is also very helpful and compassionate. Thanks for taking such great care of me."
"Excellent, friendly & straight to the point on procedures!! Office staff friendly & helpful too!!!"
"I was treated by Dr. MacCollum 13 years ago and again recently her level of care and concern is exceptional. She listen to my concerns, explained and provided the needed treatment."
"She is the best GI Doctor in the valley and will continue using her services!"
"I could not ask for a better more professional doctor than Barbara. She is so in tune with her patients and knowledgeable. I have made several referrals to her. She treats me with kindness and understanding I feel confident with her managing my care. You will too"
"Dr. MacCollum is very Respectful person, highly recommended, knowledgeable and an expert in her work/field. The staff are friendly, knowledgeable and outgoing within their work. I would highly recommend her to others."
"Very good doctor. Very knowledgeable and compassionate. Listens to her patients and make good recommendations."
"Very personable and focused on main issue with an immediate plan."
"Dr MacCollum has treated me for over 20 years. The care she has provided me in the 20 plus years has always been outstanding. She always takes time to listen to my symptoms and go over a recommended treatment plan. She is always very responsive and I would recommend her to everyone. She is an outstanding provider in the G.I. community."
"Dr. MacCollum is always willing to listen to my concerns and take the time to talk with me during my appointment. She doesn’t make you feel like she is trying to rush you out to get to the next patient. I respect her for that."
"Great Doc and staff"
"Dr. MacCollum interrupted her schedule and worked overtime to see and care for me. I was impressed with knowledge - and listening skills. Am grateful to know that I have such an excellent doctor to call when I’m in AZ."
"(Translated by Google) Dr. McCollum is great! (Original) Dr. MacCollum is great!"
"Dr MacCollum is a great and highly knowledgeable doctor. She's a lovely lady too! Her staff are really nice. Office is nice and clean and wait time is short as well."
"The doc spent several minutes talking to me and getting to know me personally. She showed interest in me as a person, not just a patient."
"It’s rare to find a Dr. Who really listens to your concerns. Dr. MacCollum listened. Asks questions to assess the right treatment or tests needed to get answers."
"Barbara MacMollum and her office staff are the best. Unless she retires before I die, she will always be my GI Doc. She cares! I just think the world of her. I highly recommend her."
"I have been experiencing severe pain in my right upper quadrant since June 2021. I was unable to get a diagnosis through CAT scan, MRI, x-rays from other physicians. Dr. MacCollum had one visit with me, asked many questions, and scheduled me for an endoscopy. Immediately she found a 1 cm ulcer in my stomach and put me on medication to heal it. So within a 2 1/2 week period of time from initial visit to date of endoscopy I was diagnosed. The staff at Arizona Digestive Health were very professional and friendly. The staff at the Arizona endoscopy center, where, Dr. MacCollum performs endoscopy‘s, was the same. I would highly recommend seeing Dr. MacCollum for any gastrointestinal issues you may have!"
"I have been a patient of Dr Macs for years (over 25). She has been the best GI doctor i’ve ever met. She is thorough, answers questions that help me understand what’s going on and very helpful in all ways. Beautiful PJ is an angel. The best office staff also."
"Dr. McCollum is respectful and listens well. I feel heard. When mentioned another issue she recommended a therapy that would be helpful."
"Dr MacCullom provides excellent compassionate care. She is well informed, knowledgeable and both my husband and I have trusted her with our health for years. She takes the necessary time in the office to answer any and all questions that I’ve had which is so kind!"
"The best experience, always. I have been going to Dr. MacCollum for years. She her staff and the team at the Surgical Center are “The Best.” I will never go anywhere else for these procedures. Now that I have moved up North, I don’t care how far I have to travel to be in her care. She is worth.the extra miles. She is so knowledgeable, sweet, kind and gentle. She explains everything in detail and makes you feel safe and secure before and after the procedure. I’m never nervous going to her. I go to sleep and the next thing I know I’m done. She shows you pictures of her findings and goes over them very well. They are very delicate procedures that take great skill. She has it. Highly, highly recommend Dr. MacCollum to everyone."
