Dr. Oscar John Ma MD

Dr. Oscar Ma is an emergency medicine doctor in Portland, Oregon. He received his medical degree from George Washington University School of Medicine and Health Sciences and has been in practice for 19 years.

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Office Location

See Contact Information

Specialty & Clinical Interests

General Emergency Medicine

Education & Medical Training

Georgetown University Hospital/Washington Hospital Center
Residency, Internal Medicine, 1990 - 1991

Medical College of Wisconsin Affiliated Hospitals
Residency, Emergency Medicine, 1991 - 1994

George Washington University School of Medicine and Health Sciences
Class of 1990

Certifications & Licensure

American Board of Emergency Medicine
Certified in Emergency Medicine

OR State Medical License
Active through 2013

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