About
Dr. Steven Hashiguchi is a board-certified internist with decades of practice in the Tualatin, Oregon area. He graduated Magna Cum Laude from Duke University in 1982 with a Bachelor of Arts in Chemistry and Biochemistry. He earned his Doctorate of Medicine from the University of Virginia School of Medicine in 1986. He completed both his internship and Internal Medicine residency at Oregon Health Science University in Portland, finishing in 1989.
Dr. Hashiguchi holds board certification from the American Board of Internal Medicine and maintains an Oregon medical license. Since 1994, he has served as a Clinical Associate Professor of Medicine at Oregon Health and Science University. He also served as a Clinical Preceptor for first-year medical students at OHSU from 1992 to 1999, and he has served on the ECG Readers Panel at Legacy Meridian Park Hospital since 2001. He is a member of the American College of Physicians, the Oregon Medical Association, the Medical Society of Metropolitan Portland, and the Meridian Association of Physicians. His clinical focus includes chronic disease management, with particular depth in type 2 diabetes, high cholesterol, and hypertension. Patients consistently describe his care as thorough, attentive, and deeply personal.
Education & Training
Undergraduate
Duke University, Durham, NC — Bachelor of Arts, Chemistry, Biochemistry, Magna Cum Laude, 1982
Medical School
University of Virginia, Charlottesville, VA — Doctorate of Medicine, 1986
Residency
Internal Medicine, Oregon Health Science University, Portland, OR, 1987-1989
Additional Training
Internship, Oregon Health Science University, Portland, OR, 1986-1987; Clinical Associate, Professor of Medicine, Oregon Health & Science University, 1994-present
Certifications
Conditions Treated
Who is Dr. Hashiguchi right for?
Dr. Hashiguchi serves adults who want a primary care physician who knows their health history in depth. Patients managing chronic conditions like type 2 diabetes, high cholesterol, or hypertension benefit from his focused approach. He works well with patients who value direct access to their physician and want to see the same doctor at every visit. Those seeking proactive, prevention-oriented care will find his annual Wellness Program particularly valuable.
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Internal MedicineFrequently Asked Questions
Dr. Hashiguchi specializes in internal medicine with particular focus on chronic disease management. He regularly treats patients with type 2 diabetes, high cholesterol, and hypertension. His preventive approach means he works to catch and address risks before they become serious problems.
Yes. Dr. Hashiguchi holds board certification from the American Board of Internal Medicine. He earned his medical degree from the University of Virginia School of Medicine in 1986 and completed his residency at Oregon Health Science University.
Dr. Hashiguchi completed his undergraduate degree at Duke University and his medical degree at the University of Virginia. He then completed both his internship and Internal Medicine residency at Oregon Health Science University in Portland, finishing in 1989.
Yes. Dr. Hashiguchi has served as a Clinical Associate Professor of Medicine at Oregon Health and Science University since 1994. He also served as a Clinical Preceptor for first-year medical students at OHSU from 1992 to 1999.
Yes. Dr. Hashiguchi personally sees every patient who visits the office. The practice does not route patients to nurse practitioners or physician assistants.
Dr. Hashiguchi focuses on anticipating and managing each patient's unique healthcare needs. He takes a personal, collaborative approach and works to understand what is normal for each individual patient's body and lifestyle. Patients describe him as an attentive listener who stays current with the latest medical information.
Dr. Hashiguchi is a member of the American College of Physicians, the Oregon Medical Association, the Medical Society of Metropolitan Portland, and the Meridian Association of Physicians. He also serves on the ECG Readers Panel at Legacy Meridian Park Hospital.
Dr. Hashiguchi holds affiliations at Legacy Meridian Park Hospital and Providence St. Vincent Medical Center, both in the Portland metro area.
Doctor profile last updated June 9, 2026