Mark D. Gulinson, M.D.



3815 E Bell Rd Ste 1250

Phoenix, AZ 85032

Open today 9:30AM - 11 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

Phoenix - 40th St/Bell

Gastroenterology in Phoenix, AZ

Phoenix - 40th St/Bell

3815 E Bell Rd

Ste 1250

Phoenix, AZ 85032

Open today 9:30AM - 11 PM


North Mountain

Gastroenterology in Phoenix, AZ

North Mountain

9250 N 3rd St

Ste 4035

Phoenix, AZ 85020

Open today 8 AM - 5 PM


North Valley Endoscopy Center

Gastroenterology in Phoenix, AZ

North Valley Endoscopy Center

15255 North 40th Street

Ste. 157

Phoenix, AZ 85032

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 Mark D. Gulinson, M.D.


  • Gastroenterology Fellowship: University of California (Irvine, CA)
  • Internal Medicine Residency: University of Pittsburgh Health Sciences Center
  • Medical Degree: University of Colorado Health Science Center (Denver, CO)
  • Undergraduate Degree: B.S. The Colorado College (Colorado Springs, CO)

Board Certification

  • American Board of Internal Medicine – Gastroenterology & Hepatology

Associations/ Memberships

  • American College of Gastroenterology
  • American Society of Gastrointestinal Endoscopy

Awards or Distinctions

Hospital Affiliations

  • John C. Lincoln North Mountain
  • Paradise Valley Hospital


It was my first time seen GI Doctor and it was great. Also my medicine got to the pharmacy very fast. THX.

J.Z. Google

Dr Gulinson is great, had my upper GI Endoscopy this a.m. and already feel about 90%. He always listens and takes care of my ailment ASAP. Never have to wait to see him or wait for a procedure. Truly a doctor that cares!

S.M. Google

I want to start out with the office staff. They are so kind. Second, Dr. Gulinson is one of the nicest doctors I've seen in a good while. 100%, I recommend him.

R.L. Google

Dr Gulinson was most helpful.

J.E. Google

Spent more time in waiting room than I did with doctor and it was only for a prescription refill authorization

P.J. Google


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