Steven T. Zierer, M.D.



6020 E Arbor Ave Ste 101

Mesa, AZ 85206

Open today 7 AM - 5 PM

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

Dr. Zierer will be retiring effective 02/29/24. Please call 480-985-1700 to schedule your next appointment with one of our available providers.


Mesa - East

Gastroenterology in Mesa, AZ

Mesa - East

6020 E Arbor Ave

Ste 101

Mesa, AZ 85206

Open today 7 AM - 5 PM


East Valley Endoscopy

Gastroenterology in Mesa, AZ

East Valley Endoscopy

6020 East Arbor Avenue

Ste. 105

Mesa, AZ 85206

By appointment only.

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 Steven T. Zierer, M.D.


  • B.S. Indiana University – Bloomington, IN
  • M.D. Indiana University School of Medicine – Indianapolis, IN
  • Internship / Residency – Saint Joseph Regional Medical Center – 1989 – 1992
  • Gastroenterology / Hepatology Fellowship – Good Samaritan Regional Medical Center / Carl Hayden Phoenix VA Hospital – 1992-1994
  • Advanced Therapeutic Endoscopy Fellowship – Good Samaritan Regional Medical Center / Carl Hayden Phoenix VA Hospital – 1994-1995

Board Certification

  • American Board of Internal Medicine – Gastroenterology & Hepatology

Associations/ Memberships

  • American College of Gastroenterology
  • American Society of Gastrointestinal Endoscopy
  • Phoenix Society of Gastroenterology

Hospital Affiliations

  • Banner Baywood Heart Hospital
  • Banner Baywood Medical Center
  • Banner Boswell Hospital


Streamlined the process. Simple and painless. I was impressed.

C.E. Google

Dr. Zierer’s office is always organized, polite, efficient and super supportive in everything they do. I would highly recommend this office for your health and wellbeing.

K.S. Google

Very attentive and the doctor even stopped by to say hello before the procedure.

T.L. Google

My appointment on 2/5/24 went very well. Everyone was very friendly, and helpful. My doctor spent time with me to go over all that was important to my visit. When I left I understood everything about my health, and what Dr. Zierer was going to do for me on my next appointment. I'm very sad to hear that he is going to be retiring soon, and I from the bottom of my heart wish him the very best retirement a good doctor deserves. Thank you all!!

K.T. Google

Heipful and pleasant.

D.J. Google


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