Doctor Dies in Fiery Hyperbaric Chamber Accident at His Own Clinic

A well-known Arizona physical therapist and clinic owner is dead after a horrific fire erupted inside a hyperbaric chamber at his wellness center — a facility he founded to help others heal.

Dr. Walter “Wally” Foxcroft, 43, was killed late Wednesday night, July 9, after an apparent flash fire broke out at his business, Havasu Health and Hyperbarics, in Lake Havasu City.

Emergency crews were called to the scene at 10:50 p.m. after someone reported a burn victim and smoke at the Mesquite Avenue clinic. Firefighters arrived to find smoke throughout the building — and a hyperbaric oxygen chamber that had clearly ignited with someone still inside.

That person was Foxcroft himself.

He was pronounced dead at the scene.

Authorities have not said what caused the chamber to catch fire, but fire investigators and Lake Havasu police are actively working the case. The chamber was found intact, which suggests the blaze may have flashed and then extinguished on its own — a terrifying possibility in any oxygen-rich environment.

It’s unclear who placed the 911 call or whether anyone else was inside the building at the time, though the caller reportedly knew that Foxcroft was inside the device when it ignited.

Fire crews ventilated the clinic and checked for other hazards before leaving.

Foxcroft opened Havasu Health and Hyperbarics in 2024, calling it the first of its kind in Arizona. It offered hyperbaric oxygen therapy — a treatment that involves breathing pure oxygen in a pressurized chamber — along with other wellness services aimed at injury recovery and chronic health conditions.

“Our mission is to offer the most advanced therapeutic technologies available, right here in Lake Havasu City,” Foxcroft told KARK.com when the clinic opened. “We’re providing patients with the tools they need to achieve peak health and recovery.”

The clinic is now shuttered, with a sign reading “Closed Until Further Notice.”

Foxcroft was certified by the International Board of Undersea Medicine and had been living in Lake Havasu City since 1998. He studied at the University of Arizona and Touro University Nevada.

Long before becoming a respected wellness expert, Foxcroft was known to many as “Wally the Wildcat” — the University of Arizona’s beloved mascot. He was remembered this week by the school’s cheerleading and mascot alumni group for his signature moonwalk and “passion for bringing joy.”

“Wally was an unforgettable presence on the sidelines — an energetic, charismatic performer,” the group shared on Instagram. “His dedication to uplifting others — through performance, healing, and innovation — will not be forgotten.”

Foxcroft was also a father, a husband, and a widely admired figure in Arizona’s close-knit medical community.

“I just remember how kind and thorough he was with each person,” said local therapist Jonathan O’Neill, who once shadowed Foxcroft on the job. “Never in a rush. He answered every question.”

Grace Echevarria, a theater director who knew Foxcroft’s family, told reporters that his wife is “grief-stricken” by the sudden and devastating loss.

Hyperbaric chambers are generally considered safe when used properly — but they are not without risk. Oxygen-rich environments are highly flammable, and several fatal accidents involving hyperbaric equipment have made headlines in recent years.

In one infamous case, a 5-year-old child died in Florida after a chamber explosion killed him and his grandmother.

While investigations continue, Foxcroft’s death is raising urgent questions about safety protocols and oversight in the booming wellness industry — particularly for advanced therapies like HBOT.

As tributes pour in across Arizona, one thing is clear: Dr. Walter Foxcroft made a lasting impact, both as a healer and a human being.

“He wasn’t just a doctor,” said O’Neill. “He was a bright light.”