By: Ricci Lopez

In the vibrant city of Las Vegas, few figures have woven a legacy as colorful and impactful as Dr. Lonnie Hammargren. A pioneering neurosurgeon, former lieutenant governor, and an unabashed eccentric, Hammargren’s life was a testament to the fusion of medical brilliance and flamboyant individuality. His contributions to medicine, politics, and culture have left an indelible mark on the city he called home.
Born on December 25, 1937, in Harris, Minnesota, Hammargren’s journey into medicine was marked by distinction. After serving as a flight surgeon for NASA’s Apollo program from November 1965 to March 1966, he chose to specialize in neurosurgery, completing his training at the Mayo Clinic. In 1971, recognizing the need for specialized medical care in the burgeoning city of Las Vegas, he relocated here, becoming one of the city’s first neurosurgeons.

Over his 35-year medical career, Hammargren performed thousands of surgeries, often taking on complex and high-profile cases. He treated notable figures such as daredevil Evel Knievel and boxer Duk Koo Kim. His commitment to patient care was unwavering; he often treated individuals regardless of their ability to pay. One poignant example is Lorraine Mosca, a young woman who suffered a traumatic brain injury during a robbery. Hammargren performed five surgeries to save her life, and she went on to graduate from college and lead a productive life.
Hammargren’s dedication to service extended beyond the operating room. He served as a regent of the Nevada System of Higher Education from 1988 to 1994, advocating for educational advancements. In 1995, he was elected as the 31st Lieutenant Governor of Nevada, serving until 1999. Notably, he was the last lieutenant governor to serve under a governor from a different political party, working alongside Democrat Bob Miller.

Perhaps the most vivid expression of Hammargren’s eclectic spirit was his home, Castillo del Sol. Purchased in 1972, the residence evolved into a sprawling 12,000-square-foot estate encompassing three houses, each filled with artifacts ranging from old casino signs to an Apollo space capsule. The home became a museum of sorts, showcasing Las Vegas history and Hammargren’s diverse interests. He opened it to the public annually on Nevada Day, allowing visitors to experience his unique collection firsthand.
Hammargren’s home was more than a collection; it was a testament to his belief in individuality and self-expression. He once stated, “It’s me. It makes me unique in the whole world. Nobody has done what I’ve done.” Hammargren’s individuality extended to his fashion choices. He was known for his extensive tie collection, each piece reflecting a facet of his personality. His wardrobe also included astronaut jumpsuits, a nod to his time with NASA, and he was often seen wearing aviator glasses and other distinctive accessories. These sartorial choices were not mere eccentricities but expressions of a man unafraid to showcase his multifaceted identity.

Dr. Lonnie Hammargren passed away on June 13, 2023, at the age of 85. His legacy is one of innovation, individuality, and an unwavering commitment to living life on his own terms. Through his medical contributions, public service, and unique personal style, Hammargren left an indelible mark on Las Vegas and beyond. Dr. Lonnie Hammargren exemplified the fusion of professional excellence and personal authenticity. His life serves as a reminder that greatness in medicine, or any field, can be enriched by embracing one’s unique identity. In celebrating great medical minds, Hammargren’s story stands out as a testament to the power of individuality and the impact of a life lived boldly.




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