ThreeBestRated.com
BEST RATED PHOENIX, AZ GASTROENTEROLOGISTS

3 Best Gastroenterologists in Phoenix, AZ

Expert-recommended Top 3 Gastroenterologists in Phoenix, Arizona. All of our gastroenterologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Hector Rodriguez-Luna, MD - Phoenix, AZ Gastroenterologists - Doctor Portrait Image
Best Gastroenterologists in Phoenix AZ - Hector Rodriguez-Luna, MD - ARIZONA ADVANCED DIGESTIVE CARE video
3+ YEARS IN TBR

HECTOR RODRIGUEZ-LUNA, MD

(4.9 Score)
ARIZONA ADVANCED DIGESTIVE CARE
9305 West Thomas Road, Suite 405,
Phoenix, AZ 85037 Directions

Since 1999

Specialty:

✓Preventing and Diagnosing Esophageal ✓Colorectal and Gastric Cancer ✓Gastroesophageal Reflux Disease (GERD) ✓Chronic Pancreatitis ✓Inflammatory Bowel Disease ✓Crohn’s Disease ✓Ulcerative Colitis ✓Hemorrhoids ✓Gallstones and Kidney Stones ✓Lactose and Fructose Intolerance ✓Gastrointestinal Bleeding and Barrett’s Esophagus ✓Colonoscopy ✓Upper Endoscopy ✓Therapeutic ERCP ✓Endoscopic Ultrasound ✓Radio Frequency Ablation ✓General gastroenterology ✓Liver care

" Dr. Hector Rodriguez-Luna is board-certified in gastroenterology and hepatology with 17 years of experience. He completed a residency in internal medicine at Ochsner Foundation Hospital in New Orleans and fellowship training in gastroenterology, liver diseases, and liver transplantation at the VA/Good Banner University Medical Center and Mayo Clinic in Arizona. His expertise includes general gastroenterology conditions, acid reflux, colon cancer prevention, inflammatory bowel disease, liver disease, and pancreatobiliary disorders, performing procedures such as upper endoscopy, BARRx ablation, colonoscopy, small bowel enteroscopy, capsule endoscopy, and ERCP. Dr. Hector Rodriguez-Luna is a proud member of the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, and the American Association for the Study of Liver Diseases.

2026 Highlights: Dr. Hector Rodriguez-Luna practices at Arizona Advanced Digestive Care. "

Reviews | Play Video | Write a Review
License #26827

Contact:

(623) 242-7997

Mon-Fri: 8am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

Barbara J. MacCollum, MD - Phoenix, AZ Gastroenterologists - Doctor Portrait Image
Barbara J. MacCollum, MD - Phoenix, AZ Gastroenterologists - Clinic Exterior Image
Barbara J. MacCollum, MD - Phoenix, AZ Gastroenterologists - Clinic Logo
7+ YEARS IN TBR

BARBARA J. MACCOLLUM, MD

(4.8 Score)
ARIZONA DIGESTIVE HEALTH
2222 East Highland Avenue, Suite 203,
Phoenix, AZ 85016 Directions

Since 1985

Specialty:

✓Capsule Endoscopy ✓Colonoscopy ✓Dietitian Services ✓Endoscopic Ultrasonography (EUS) ✓ERCP ✓Hepatitis Management ✓Open Access Colonoscopy ✓Remicade Infusion ✓Rubber Band Ligation for Hemorrhoids ✓Sigmoidoscopy ✓Small Bowel Enteroscopy ✓Upper GI Endoscopy (EGD) ✓Acid Reflux ✓Constipation ✓Hepatitis C

" Dr. Barbara J. MacCollum completed her education at Good Samaritan Medical Center, earned her B.S. from Arizona State University, and her M.D. from the University of Arizona College of Medicine. She earned her Internal Medicine Residency and Gastroenterology Fellowship at Maricopa Medical Center. Dr. Barbara J. MacCollum is board-certified in Internal Medicine and Gastroenterology and Hepatology by the American Board of Internal Medicine, and holds memberships in the American Gastroenterological Association, American College of Physicians, American Society of Gastrointestinal Endoscopy, Maricopa Medical Society, Phi Beta Kappa, and the Phoenix Society of Gastroenterology. She also treats conditions like colon polyps, GERD, liver disease, ulcer disease, and Crohn's disease.

2026 Highlights: Dr. Barbara J. MacCollum has over 40 years of experience in the medical field. She is affiliated with medical facilities such as Mayo Clinic Hospital and Banner University Medical Center Phoenix.. "

Reviews   |   Write a Review
Phoenix Magazine “Top Doc” 2010 -2014
License #15579

Contact:

(602) 229-1900 (602) 254-5321

Mon-Fri: 8:30am - 4pm
Sat & Sun: Closed

TBR® Inspection Report:

Michael R. Mills, MD - Phoenix, AZ Gastroenterologists - Doctor Portrait Image
CALL EMAIL

MICHAEL R. MILLS, MD

(4.8 Score)
ARIZONA DIGESTIVE HEALTH
349 East Coronado Road,
Phoenix, AZ 85004 Directions

Since 1991

Specialty:

✓Abdominal Pain ✓Anal/Rectal Bleeding ✓Bloating ✓Blood in the Stool ✓Bowel Incontinence ✓Diarrhea ✓Difficulty Swallowing ✓Heartburn ✓Nausea ✓Vomiting ✓Celiac Disease ✓Colitis ✓Diverticulitis ✓Dysphagia ✓Eosinophilic Esophagitis ✓Esophageal Motility Disorder ✓Esophagitis ✓Fatty Liver Disease ✓Fistula ✓Gastritis ✓GERD ✓Hemorrhoids ✓Hepatitis ✓Ileitis ✓Non-alcoholic Steatohepatitis and Ulcerative Colitis ✓Anorectal Manometry ✓Argon Laser Therapy ✓Capsule Endoscopy ✓Colon Cancer Screening ✓Colonoscopy ✓EGD ✓Endoscopic Mucosal Resection ✓Enteroscopy ✓ERCP ✓Esophageal Dilation ✓Hemorrhoid Banding ✓Inflammatory Bowel Disease

“ Dr. Michael R. Mills earned his B.S. from the University of Arizona, M.D. and M.P.H. from Tulane University. He completed his Internal Medicine Residency at the University of Colorado and a Gastroenterology Fellowship at the University of Arizona Health Sciences Center and is board-certified in Gastroenterology & Hepatology. Dr. Michael R. Mills is board-certified by the American Board of Internal Medicine in Gastroenterology and Hepatology. He is a member of the American College of Gastroenterology, American Gastroenterological Association, American Medical Association, Arizona Medical Association, and more. Dr. Mills is affiliated with Banner Estrella Medical Center and Banner University Medical Center. ”

Reviews   |   Write a Review
License #23704

Contact:

(602) 266-5678

Mon-Fri: 8am - 4pm
Sat & Sun: Closed

TBR® Inspection Report:

Video

Write a Review for Michael R. Mills, MD

Our Review Process:

  • All reviews matter:We publish both positive and negative reviews to provide a balanced perspective.
  • No censorship: Businesses cannot pay to remove or modify negative reviews.
  • Verification process: All reviews are checked for authenticity and compliance with our community guidelines before publication.
  • Fair representation: We display reviews of all ratings (1–5 stars) to help users make informed decisions.
  • Independence: We are not affiliated with the businesses we review and receive no compensation for favorable ratings.

Your honest opinion helps others make better choices. Whether your experience was excellent, average, or disappointing, we want to hear from you. For more details, check Community Review Guidelines.

Contact Business

HECTOR RODRIGUEZ-LUNA, MD REVIEWS

Dr. Rodríguez is an awesome physician very helpful. Takes the time to really find out what's wrong with us. Yes he might be running late a bit but that is the reason, because he takes his time with his patients, to really find out what is wrong with them and doesn't Rush that's very important to us. He is thorough and caring I recommend him but if you are a person with patience he is well worth it.

If you want the best & don’t mind waiting in lobby for just a little bit … Dr Rodriquez is the one to call. Everything & everyone in that facility is top notch. Dr Rodriquez has been our (wife, 2 daughters & me) doctor for over 15 years.

So far my experience with Dr. Rodriguez has been very positive. He was very informative and had a great bedside manner. He seemed very genuine about wanting to get to the cause of my issues and help me feel better.

These reviews are provided for information purposes and to help you make informed decisions.

To share your experience, click here or send it to reviews@threebestrated.com.

We will display both positive and negative reviews. All submitted reviews are published after verification for authenticity and compliance with our Terms and Conditions, Privacy Policy, and Community Review Guidelines.

BARBARA J. MACCOLLUM, MD REVIEWS

I recently had my yearly appointment with Dr MacCollum and as always it was great. I actually look forward to seeing not only the Doctor, but her staff as well. Dr MacCollum is like an old friend who has only your best healthcare in mind. She is very knowledgeable and explains everything in a way I can understand. If you’re looking for the best you need to get on her schedule.

Dr MacCollum is very compassionate and detailed. She is extremely knowledgeable in her field, yet makes you feel like an old friend. Her staff is very friendly and accommodating. Going to see a doctor is not always the most pleasant day; however, Dr MacCollum and her staff make it very comforting. Thank you for all you do.

From the front desk to the doctors assistance to Dr. MacCollum herself, this is an office that makes you feel welcome and cared about. Dr MacCollum listens and takes her time with me. She and her staff are exceptional and rare in today’s world of medicine. I would highly recommend Dr. MacCollum!.

MICHAEL R. MILLS, MD REVIEWS

I had a great experience with Dr. Mills, GI specialist. He was professional, thorough, and truly took the time to listen to my full medical history. I felt heard and understood, which is rare these days. He asked thoughtful questions and explained everything clearly, making sure I was comfortable with the plan moving forward. He also ordered the appropriate tests right away, which gave me peace of mind. I highly recommend Dr. Mills to anyone looking for a knowledgeable and compassionate GI specialist.

I can’t say enough amazing things about Dr. Mills and the entire office. His bedside manner is outstanding: He is the most caring, understanding and compassionate man. He’s very thorough and makes sure every base is covered.. I have received so much support from the office in helping me with paperwork and medication applications ….you name it and they are there to help. I am so blessed that I was referred here .

Dr Mills and his staff have been nothing short of great for me. I live 3 1/2 hrs away from the office, and love that I can do consultations via their doxy system. Thank you for your great care.

TBR® Inspection Score Report

HECTOR RODRIGUEZ-LUNA, MD Total Inspection Points: 118/120
Business Images: 8
Acknowledgments: 10
Insurance : 10
License: 10
Current Evaluation: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Review Analysis: 10
Reviews Accuracy of : 10

TBR® Inspection Score Report

BARBARA J. MACCOLLUM, MD Total Inspection Points: 116/120
Business Images: 8
Review Analysis: 9
Reviews Accuracy of : 9
Acknowledgments: 10
Insurance : 10
License: 10
Current Evaluation: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10

TBR® Inspection Score Report

MICHAEL R. MILLS, MD Total Inspection Points: 114/120
Business Hours: 8
Business Images: 8
Review Analysis: 9
Reviews Accuracy of : 9
Acknowledgments: 10
Insurance : 10
Contact Info: 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10