Heaven’s Peace Diagnostics Is Bridging Texas’ Healthcare Gap

TYLER, Texas (TXAN 24) — For Onissa Mitchell-Fisher, healthcare isn’t just a profession, it’s personal. The founder of Heaven’s Peace Diagnostics has been around healthcare since she was just 12 years old, but it was a life-changing moment as a mother that truly solidified her calling.

Just two weeks before her son’s fifth birthday, a medical emergency nearly claimed his life. That experience gave Mitchell-Fisher a firsthand understanding of how vital accessible, compassionate healthcare can be and how devastating it is when families fall through the cracks of the system.

Today, through Heaven’s Peace Diagnostics, she’s helping close that gap across Texas. Her private healthcare service focuses on providing affordable diagnostic and preventative care for individuals who don’t have insurance or struggle to access traditional healthcare options.

“I wanted to create a space where people feel seen, cared for, and respected, no matter their situation” said Mitchell-Fisher.

From lab testing to wellness screenings, Heaven’s Peace Diagnostics offers services aimed at helping Texans take control of their health before crises arise. Mitchell-Fisher’s approach blends compassion with clinical excellence, ensuring every patient receives care that’s both professional and personal.

Her story is a reminder that sometimes, the hardest battles lead to the strongest missions and for Onissa Mitchell-Fisher, that mission is bringing peace of mind back to healthcare, one patient at a time.