Dr. Jeffrey D. Duman, MD


(1 review)
Accepting new patients 15 years of experience Offers telehealth


Dr. Jeffrey D. Duman, MD is an Internist (Gastroenterologist) in Tualatin, OR. He specializes in Gastroenterology, has 15 years of experience, and is board certified. He graduated from University Of Colorado Health Sciences Center and he is affiliated with Providence Newberg Medical Center, Legacy Meridian Park Medical Center, and Providence Willamette Falls Medical Center.

Dr. Duman works at Gastroenterology South at Tualatin and 1 other location. He frequently treats conditions...


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Conditions Treated and Procedures Performed

Online Scheduling

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Experience & Treatment Frequency

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Treatment Frequency

Very High
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Ratings & Reviews

Average provider rating


Based on 1 review

Time with patient

Accuracy of diagnosis

Listening skills

Clear explanations

Trust in decision making

Post visit follow-up

Office & Staff Evaluation

Office appearance

out of 5

Ease of scheduling

out of 5

Friendly staff

out of 5

Billing matters

out of 5

Average wait time

not available

Group 24

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Patient Reviews

1 review

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1 star
Mar 23, 2021

I've been under treatment for ulcerative colitis since I was 9 years old and I've worked with many different GI specialists. Dr. Duman is by far the best doctor I've ever had. He makes me feel heard and I'm always well taken care of. I would...

Amanda Morales

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About Dr. Jeffrey D. Duman, MD


  • Gastroenterology

Years of Experience

15 years of experience

Languages Spoken

  • English



NPI Number


Education & Certifications

Medical Education

  • University Of Texas, Austin


  • University of Colorado Health Sciences Center
  • University Of Colorado Health Sciences Center


  • University Of Colorado Health Sciences Center

Board Certifications

  • ABMS
  • Gastroenterology


Primary Location Pin Icon

Primary Location

Gastroenterology South at Tualatin

19250 SW 90th Ave,

Tualatin, OR 97062

Gastroenterology South at Newberg

879 N Providence Dr,

Newberg, OR 97132


Admitting Hospitals

  • Legacy Meridian Park Medical Center
  • Providence Newberg Medical Center
  • Providence Willamette Falls Medical Center

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