Alameda Health System (AHS) is deeply saddened to learn of the death of Coyness Ennix Jr., MD, a pioneering cardiovascular surgeon who began his early career at Highland Hospital and whose legacy reflects clinical excellence, resilience and a lifelong commitment to community.
A childhood trip to the doctor first sparked Dr. Ennix’s interest in medicine. His mother encouraged him to aim high, telling him he should become a specialist, advice that helped shape his future career. Early in his career, Dr. Ennix was called to respond to a profoundly tragic moment in Oakland’s history.
On Election Day in 1973, Oakland Unified School District Superintendent Marcus Foster was assassinated, and his deputy, Robert Blackburn, was gravely wounded. Blackburn was taken to Highland Hospital, where Ennix, then a young surgeon, led the team that worked through the night to save his life. Dr. Blackburn and Dr. Ennix became lifelong friends.
That early experience reflected the skill and composure that defined his career. He went on to become one of the nation’s foremost cardiac surgeons, practicing across major Bay Area health systems including Alameda Health System, Alta Bates Summit Medical Center, John Muir Health and UCSF Health. At Alta Bates Summit Medical Center, he led cardiac surgery and helped train the next generation of physicians.
In his later years, Ennix remained deeply committed to mentorship and expanding pathways into medicine. He served as board chair of the California Medicine Coalition, where he was passionate about supporting and advocating for underrepresented youth, particularly young Black men pursuing careers in medicine. He also served on the board and as chair of the Marcus Foster Educational Institute for many years, an organization that has supported Oakland students for more than 50 years.
Outside of medicine, Dr. Ennix was also a talented saxophonist who found joy in music and community. He played with his band, Alpha Gamma 6, which performed at social gatherings and events for professional organizations, reflecting another way he connected with and brought people together.
His daughter, Kristina Ennix Davenport, RN, who works in maternal child health at the Wilma Chan Highland Hospital Campus, shared that her father’s dedication to medicine and helping others inspired her own path into healthcare. She also described him as a caring, loving and compassionate man, a sentiment echoed by patients, colleagues and friends whose lives he touched over many decades.
“I had the great pleasure to have known Dr. Ennix for over 35 years as a colleague and friend, and his loss is immeasurable,” said James Jackson, CEO of Alameda Health System. “We will endeavor to carry on in his name and spirit, and I personally am a better person for having known Dr. Coyness Ennix.”
Dr. Ennix is remembered as a skilled surgeon, dedicated teacher, compassionate leader and community builder. His life’s work lives on in every heartbeat he helped sustain and in the many lives he touched across the Bay Area and beyond.
For more on the assassination of Superintendent Marcus Foster and this pivotal moment in Oakland history, read this SFGATE article.