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About Dr. Steven J Mason

Dr. Steven J Mason, MD is a Doctor primarily located in Oregon City, OR, with another office in Tualatin, OR. He has 43 years of experience. His specialties include Gastroenterology and Internal Medicine. Dr. Mason is affiliated with Providence Willamette Falls Medical Center and Providence Newberg Hospital. He speaks English.

Rating Overview

3 Ratings with 2 Comments

The overall average patient rating of Dr. Steven J Mason is Great. Dr. Steven J Mason has been rated by 3 patients. From those 3 patients 2 of those left a comment along with their rating. The overall rating for Dr. Steven J Mason is 3.7 of 5.0 stars.

Mapbox Map of Dr. Steven J Mason

Primary Address


1508 Division St Ste 15
Oregon City, OR 97045
(503) 657-5555

Mapbox Map of Dr. Steven J Mason


19250 SW 90th Ave
Tualatin, OR 97062
(503) 692-3750


Dr. Steven J Mason has the following 2 specialties

  • Gastroenterology

    A gastroenterologist is a specialist in diagnosis and treatment of conditions involving the digestive/gastrointestinal (GI) tract. These doctors are experts on how food moves through the digestive system and is chemically broken down, with nutrients being absorbed and waste excreted. You might see this kind of doctor if you are experiencing any number of stomach issues, some of which might be severe diarrhea, irritable bowel syndrome, hemorrhoids, ulcers, acid reflux, Crohn's disease and more.

  • Internal Medicine

    An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.
    These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.
    In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.

  • Specialty Expertise

    Dr. Steven J Mason has the following 14 expertise

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


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Fantastic doctor

Dr. Mason has been taking care of me since 1995. He is caring, patient, and experienced. He is the only doctor I know who is on time, every time. He LISTENS. He has led me safely through several crises. He is great at calming my fears and finding solutions.

Wait time
5 minutes
Easy Appointment
Friendly Staff
Accurate Diagnosis
Bedside Manner
Spends Time with Me
Appropriate Follow-up
Full Review Rating Breakdown
Five Stars

Dr. Mason diagnosed me with Crohn's disease, and has been treating me for 6 months. He is so helpful, and so smart, and so caring. He can take a joke now and again too. :) He's a great guy, and very professional gastroenterologist.

Wait time
5.0 minutes
Easy Appointment
Friendly Staff
Accurate Diagnosis
Bedside Manner
Spends Time with Me
Appropriate Follow-up
Full Review Rating Breakdown
  • Hospital Affiliations

    Dr. Mason is affiliated (can practice and admit patients) with the following hospital(s).

  • Education

    43 Years Experience

  • Oregon Health & Science University School Of Medicine

    Graduated in 1975

  • Legacy Health System


  • Accepted Insurance

    Dr. Steven J Mason accepts the following insurance providers.

  • Aetna
    • Aetna Choice POS II
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
  • ODS
    • Moda Health Community Care Network
    • Moda Health Connexus
    • Moda Health First Choice Network
    • Moda Health Synergy Network

Locations & Directions

  • Similiar Doctors

    Dr. Steven J Mason is similar to the following 4 Doctors near Oregon City, OR.

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