Barbara MacCollum, M.D.


2222 E. Highland Ave Ste. 203

Phoenix, AZ 85016

Closed. Opens Thur at 8 AM

Quick Facts

  • Virtual Telemedicine Visits Available, Call For Details
  • Board Certified Gastroenterologist
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted
  • Performs Colonoscopies

Arizona Digestive Health - Phoenix, AZ - Highland

Gastroenterology in Phoenix, AZ

Arizona Digestive Health - Phoenix, AZ - Highland

2222 E. Highland Ave

Ste. 203

Phoenix, AZ 85016

Closed. Opens Thur at 8 AM

Request an 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


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.

L.C. Google

Very personable and focused on main issue with an immediate plan.

L.P. Google

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.

S.Z. Google

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.

R.L. Google

Great Doc and staff

J.X. Google


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