Summary

Dr. Diane Williams is a board-certified gastroenterologist and internal medicine physician who has dedicated four decades to caring for patients with digestive health concerns. She earned her medical degree from Western University of Health Sciences College of Osteopathic Medicine of the Pacific and completed her residency training at Oregon Health & Science University. Dr. Williams brings extensive expertise in both gastroenterology and internal medicine to her practice. She is fluent in English and Spanish, enabling her to serve diverse patient populations throughout the Portland area.

Dr. Williams practices at Providence Saint Vincent Medical Center and maintains offices at multiple locations throughout Portland, Oregon. Her clinical focus includes treating various forms of diarrhea, including chronic diarrhea and cancer-related diarrhea that can significantly impact patients' quality of life. She specializes in helping patients manage complex digestive conditions that require both immediate attention and long-term care strategies. Patients consistently rate Dr. Williams highly for her compassionate care, giving her an average rating of 4.4 out of 5 stars.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 40 years of experience
  • 17 insurance plans accepted
  • speaks English, Spanish
  • Oregon Health & Science University
  • 10 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 1 hospital affiliation
  • 4 office locations
  • Female

Patients’ Perspective

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

Office Locations

Dr. Diane H Williams has 4 locations

The Oregon Clinic Gastroenterology West At Sw Barnes Road

9701 SW Barnes Rd Ste 300Portland, OR 97225
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

North West Rernal Clinic

9701 SW Barnes Rd Ste 110Portland, OR 97225
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

Providence Saint Vincent Medical Center

9205 Sw Barnes RdPortland, OR 97225

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. Diane H Williams, DOAnna Marie HollenSamuel Alan LindnerStephanie Lynn Egge
GastroenterologyDiagnostic RadiologyPsychiatryInfectious Disease
Accepts New Patients Accepts New Patients
4.4 
40 Years of Experience 7 Years of Experience 9 Years of Experience 9 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
Portland , ORPortland , ORVancouver , WAPortland , OR
Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific Med School: University Of Nevada School Of Medicine Med School: University Of Pittsburgh School Of Medicine Med School: Texas Tech University Health Science Center School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Diane H Williams

  • AARP
  • Aetna
  • Blue Cross Blue Shield
  • CareOregon - Medicaid (Managed)
  • Cigna
  • Health Net
  • Humana
  • Medicare
  • Medicare - Medicare
  • Moda Health
  • Moda Health - EPO
  • Moda Health - Medicaid (Managed)
  • Nippon Life Benefits
  • PacificSource Health Plans
  • Providence Health Plans
  • UnitedHealthcare
  • Wellcare

Medical Specialties

Dr. Diane H Williams has the following 2 specialties

Specialty Expertise

Dr. Diane H Williams has the following 13 areas of expertise

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

Certifications, License, & Education

40 Years Experience

Education & Training

Residency

Completed their residency at Oregon Health & Science University.

Medical School

Graduated from Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific in 1986.

NPI Number

Dr. Williams' NPI number is 1619973351.

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Frequently Asked Questions

Where is Dr. Diane Williams's office located?
Dr. Diane Williams's office is located at 9701 SW Barnes Rd Ste 300, Portland, OR, 97225.
Which hospitals is Dr. Diane Williams affiliated with?
Dr. Diane Williams is affiliated with Providence Saint Vincent Medical Center.
Is Dr. Diane Williams accepting new patients?
Dr. Diane Williams is accepting new patients on Vitals. View Dr. Diane Williams's profile on Vitals to make an appointment.
Does Dr. Diane Williams accept my insurance?
You can see the insurance plans that Dr. Diane Williams accepts on their Vitals profile.
Does Dr. Diane Williams accept virtual/telehealth appointments?
Dr. Diane Williams has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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