Our Family

Meet Our Doctor

John J. Pierce, D.O.

Dr. John J. Pierce is the Medical Director at Preventative Diagnostic Center. He is Board-certified in Emergency Medicine as well as Board-certified by the American Board of Anti-Aging and Regenerative Medicine. He received his medical training from Western University of Health Sciences, College of Osteopathic Medicine of the Pacific, in Pomona California. He also has a Bachelor of Science degree in Kinesiology from the University of Nevada, Las Vegas. In addition to his regular practice, Dr. Pierce serves as a Tactical Physician with the Las Vegas SWAT team.

Read more about John J. Pierce, D.O.

Dr John J Pierce

Our Team

Keith Mosley - CT Technologist

Keith Mosley

CT Technologist

Keith Mosely is our Lead Technologist at Preventative Diagnostic Center. Keith has been an Imaging Professional for 36 years and prides himself on the quality of care he provides his patients. Originally from eastern Washington, Keith received a Bachelor’s Degree in Healthcare Management from Warren National University. He is a Registered Technologist in both Radiology and Computed Technology with the American Registry of Radiologic Technologists. He describes himself as a problem solver who loves to be on the cutting edge of medical imaging technology and enjoys bringing that to his community. In his free time, Keith enjoys vintage motorcycle restoration and camping and fishing with his wife and family.

Read More About Our CT Technologist Keith Mosley

Dr. Dean Yarbro

Board-certified Radiologist

Dr. Dean Yarbro is our Board-certified Radiologist at Preventative Diagnostic Center. Dr. Yarbro is certified in Diagnostic Radiology and received his medical training from Texas Tech University Health Sciences Center, School of Medicine.  With over 40 years of experience, Dr. Yarbro is well-known in the Las Vegas Valley and has worked with many local doctors and physicians to bring the best quality care.


Peace of Mind, Heart, and Lung.

After having conquered cancer, the founders decided there needed to be a better way to detect diseases in the body. Discovering the remarkable advancement of scanning equipment in other parts of the country, they decided to bring one to Las Vegas and so the Preventative Diagnostic Center was born.

We believe the best path to self-care is being informed—on your terms. We also believe this care should be accessible and delivered in a compassionate atmosphere.

Preventative Diagnostic Center is the premier, leading, non-invasive, full-body scan diagnostic facility dedicated exclusively to preventative health care awareness so that individuals may prolong their life.

Preventative Diagnostic Center provides accessibility to state-of-the-art produces exceptional images.

Preventative Diagnostic Center strives for a positive, authentic and compassionate connection with all our patients.

Preventative Diagnostic Center provides you with data so you can be informed and take charge of your life.

Helping our community take control of their healthcare in a compassionate and affordable way. Awareness and early detection of disease is powerful. Our goal is to deliver information that puts our patients in a position to understand their full health picture in order to take charge of their lives.

Schedule Today

Give us a call to schedule your Non-Invasive Scan