Barbara J. MacCollum, M.D.



1410 East McDowell Road

Phoenix, AZ 85006

By appointment only.

Quick Facts

  • Colon Cancer Screenings
  • IBD, Crohn’s Disease, Ulcerative Colitis
  • Acid Reflux/Heartburn
  • Expert Endoscopy and Colonoscopy
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted

Arizona Endoscopy Center

Gastroenterology in Phoenix, AZ

Arizona Endoscopy Center

1410 East McDowell Road

Phoenix, AZ 85006

By appointment only.


Phoenix – Biltmore

Gastroenterology in Phoenix, AZ

Phoenix – Biltmore

2222 E. Highland Ave

Ste. 203

Phoenix, AZ 85016

Open today 8:30AM - 4 PM

Request Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Non-emergency requests will be responded to within 24-48 hours.

About Barbara J. MacCollum, M.D.


  • B.S. Arizona State University – Tempe, AZ
  • M.D. University of Arizona College of Medicine – Tucson, AZ
  • Internal Medicine Residency – Maricopa Medical Center
  • Gastroenterology Fellowship – Maricopa Medical Center
  • Good Samaritan Medical Center

Board Certification

  • American Board of Internal Medicine – Internal Medicine
  • American Board of Internal Medicine – Gastroenterology & Hepatology

Associations/ Memberships

  • American Gastroenterological Association
  • American College of Physicians
  • American Society of Gastrointestinal Endoscopy
  • Maricopa Medical Society
  • Phi Beta Kappa
  • Phoenix Society of Gastroenterology

Awards or Distinctions

  • Phoenix Magazine “Top Doc” 2010 -2014

Hospital Affiliations

  • Banner University Medical Center


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.

J.J. Google

Dr. MacCollum is friendly, listens and knowledgeable. I am fortunate to be under her care!

D.C. Google

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,

R.R. Google

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!

E.G. Google

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.

H.S. Google


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