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Mission Metabolic Heath Logo

Your path to longevity and health span starts here. 

Live Leaner, Longer, Better

What makes us Truly unique

Dr. Cassleman's story

Mission Metabolic Health was created to do medicine differently. After years of seeing preventable suffering from chronic disease in rushed, reactive care, Dr. Cassleman built a practice centered on real prevention and healthspan—strength, fitness, sleep, nutrition, and stress. By combining lifestyle foundations with proactive testing, modern medicine, and targeted supplementation, patients get time, attention, and a trusted partner to help prevent chronic disease and extend both length and quality of life.

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services we provide

  • Longevity Focused Care

  • Testosterone Replacement Therapy

  • Menopausal Hormone Therapy

  • Weight Management

  • Osteoporosis Management

  • Executive Physical

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A multidisciplinary approach to transform our patient's health

Mission Metabolic Health uses a truly multidisciplinary approach to prevention and longevity. With an onsite gym, patients are assessed and trained on real-world strength and fitness markers, while Dr. Cassleman and his coaching team provide personalized nutrition support and lifestyle guidance. Together, they create integrated plans that align medical care, exercise, and diet to improve metabolic health and long-term outcomes.

He is a great Doctor. I would recommend him and his office to anyone. His staff is wonderful too.
5 stars always!!

Jamilia L.

"Dr. Cassleman is always personable and compassionate. He is very focused on his patient care and following up through his office staff, telehealth and patient portal. I always feel in control of my health because he takes the time explain and listen to any issues I may have. His staff is professional, kind and they make all my appointments feel seemless from start to finish."

Richard E.

"Dr Cassleman is a true professional. I’ve been in there more then I’d like to be. But every time I told the doctor what was going on you could tell that he was listening and genuinely cares and wants you to get better. He breaks down everything for you so you can understand it. I would highly recommend Dr. Cassleman to anyone. "

Brandon W.

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Get in Touch

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21444 Harper, St Clair Shores, MI, 48080

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