O. John Ma, MD also has multiple certifications to his name including the American Board of Emergency Medicine, and the National Board of Medical Examiners.

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O. John Ma, MD

Portland, Oregon

https://ojohnmamd.com/

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    About the Author

    O. John Ma, MD

    O. John Ma, MD has multiple achievements including clinical quality and patient safety, Emergency care for Oregonians, Graduate Medical Education, and Entrepreneurial Initiative.

    Contact O. John Ma, MDunratedO. John Ma, MD2020-03-25 07:46:54O. John Ma, MD also has multiple certifications to his name including the American Board of Emergency Medicine, and the National Board of Medical Exam…