Summary

Dr. Jeffrey Douglass is a gastroenterologist and internal medicine physician who earned his medical degree from Oregon Health & Science University School of Medicine. With 27 years of experience in practice, he brings extensive expertise to the diagnosis and treatment of digestive system disorders. Dr. Douglass is fluent in both English and Spanish, enabling him to serve a diverse patient population.

Dr. Douglass maintains hospital affiliations with Legacy Meridian Park Medical Center and Providence Newberg Medical Center, with practice locations in Newberg and Tualatin, Oregon. He specializes in treating conditions such as colon polyps, changes in bowel habits, and hemorrhoids. His procedural expertise includes performing colonoscopies and coordinating pathology testing for comprehensive digestive care. Patients have given him an average rating of 4.4 on Vitals, reflecting their confidence in his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 27 years of experience
  • speaks English, Spanish
  • Oregon Health & Science University School Of Medicine
  • 6 written reviews
  • 2 specialties
  • 16 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 6 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Jeffrey Matthew Douglass has 6 locations

The Oregon Clinic Gastroenterology South Newberg

879 N Providence DrNewberg, OR 97132
Mon6:30 am - 5:00 pm
Tue6:30 am - 5:00 pm
Wed6:30 am - 5:00 pm
Thu6:30 am - 5:00 pm
Fri6:30 am - 5:00 pm
SatClosed
SunClosed

The Oregon Clinic Gastroenterology South Tualatin

19250 SW 90th AveTualatin, OR 97062
Mon7:00 am - 5:00 pm
Tue7:00 am - 5:00 pm
Wed7:00 am - 5:00 pm
Thu7:00 am - 5:00 pm
Fri7:00 am - 5:00 pm
SatClosed
SunClosed

The Oregon Clinic Gastroenterology

879 N Providence DrNewberg, OR 97132

Providence Newberg Medical Center

1001 N Providence DrNewberg, OR 97132

The Oregon Clinic

541 Ne 20th Ave Ste 225Portland, OR 97232
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Jeffrey Matthew Douglass, MDDr. Elizabeth Suzanne Sazie, MDNita VellodyDr. Janice Darlene Tendler
GastroenterologyInternal MedicineInternal MedicineGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
27 Years of Experience 51 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks Spanish, English Speaks English
Newberg , ORPortland , ORPortland , ORPortland , OR
Med School: Oregon Health & Science University School Of Medicine Med School: Univ De Montreal Fac De Med
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Jeffrey Matthew Douglass

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Jeffrey Matthew Douglass has the following 2 specialties

Specialty Expertise

Dr. Jeffrey Matthew Douglass has the following 16 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colon Cancer
  • Colonoscopy
  • Constipation
  • Crohn's Disease
  • Endoscopic Retrograde Cholangiopancreatography (ERCP)
  • Hemorrhoids
  • Hepatitis
  • Hepatitis C
  • Inflammatory Bowel Diseases (IBD)
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

27 Years Experience

Dr. Jeffrey Matthew Douglass holds an expired medical license in the state of Oregon.

Medical License

Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.

Education & Training

Medical School

Graduated from Oregon Health & Science University School Of Medicine in 1999.

NPI Number

Dr. Douglass' NPI number is 1487611984.

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Frequently Asked Questions

What languages does Dr. Jeffrey Douglass speak?
Dr. Jeffrey Douglass speaks English and Spanish.
How can I make an appointment with Dr. Jeffrey Douglass?
You can find contact information for Dr. Jeffrey Douglass here on Vitals.
Where is Dr. Jeffrey Douglass's office located?
Dr. Jeffrey Douglass's office is located at 879 N Providence Dr, Newberg, OR, 97132.
Which hospitals is Dr. Jeffrey Douglass affiliated with?
Dr. Jeffrey Douglass is affiliated with Legacy Meridian Park Medical Center and Providence Newberg Medical Center.
Does Dr. Jeffrey Douglass accept my insurance?
You can see the insurance plans that Dr. Jeffrey Douglass accepts on their Vitals profile.

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