About Dr. Oscar John Ma

Dr. Oscar John Ma was one of the first to use ultrasound to treat trauma. He started keeping track of progress as early as 1992. He is the co-editor of a well-known McGraw-Hill textbook on emergency ultrasound that is still in use and is updated from time to time. Because he has written for medical journals, he also edits medical journals.

Philanthropy and Helping Charities

Dr. John Ma volunteered for the American Board of Emergency Medicine from 2002 to 2019. He also gives money to The Little Sisters of the Poor each year.

At OHSU, he helped set up two professorships with $1 million endowments in honor of Dr. Jerris Hedges and Dr. John Moorhead, former department chairs.

Successes and Accomplishments

John Ma didn't give up his interest in medicine when he retired, and he is still updating many publications he helped write. In 2020, Ma and Mateer's Emergency Ultrasound, fourth edition, got a new chapter with a lot of new information about using ultrasound to find COVID-19.

Dr. Oscar John Ma's dedication to patient safety and high-quality clinical care helped him become president of the executive medical committee on the OHSU Professional Board, where he was chair.

In the 12 years from 2007 to 2019, Oregon went from having only one staffed emergency room to having five. During this time, the budget went from $10 million to $28 million, which led to more opportunities to invest in technology and improve patient care.

Ma also helped other doctors get training in emergency medicine and started new businesses and nonprofits.


Portland Monthly Magazine called Dr. John Ma a top doctor more than once. In 2009, OHSU gave him the Golden Rose award for his work in the emergency room, and in the same year, they gave him the Pillar of Excellence award for people development.

He got many awards for being the best emergency medicine teacher of the year at Truman Medical Center and was often praised as an excellent doctor.

Personal Hobbies and Interests

Dr. Oscar John Ma has a lot of exciting interests and hobbies. He likes the challenges of golf and trying out new restaurants in New York City. In his free time, he likes to visit museums in and around New York City and travel abroad.

He also used to be a sports writer and still knows as much about golf courses as a professional.