Dr. Jack O’Brien Obituary: Haven Health Co-Founder and HIV Specialist, Died at 36
By David Robert | Published: July 1, 2026 | Last Updated: July 1, 2026 | Source: Haven Health Instagram post WEST HOLLYWOOD, California — Dr. Jack O’Brien, a board-certified family medicine physician, HIV specialist, clinical researcher, and co-founder of Haven Health, has died at the age of 36. Haven Health announced his passing in an … Read more