About Us

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Our Mission Statement

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To deliver the best healthcare possible to all patients and customers. We strive to make a positive impact in our community by delivering quality services while keeping healthcare costs at a minimum.


Mantro Mobile Imaging was the first to offer 100% digital X-ray in Las Vegas and we have established ourselves as a reliable partner that is trusted in the most difficult medical situations.


Our friendly staff of technologists are nationally recognized with ARRT, ARDMS and CCI. All staff are ELS certified.


We get a lot of appreciation of responses, we are recommended to relatives and friends.Our technicians are experienced professionals who have undergone special training and certification. Your health is incredibly important to us.

Meet our Ownership and Management Team

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John Missig, RN, BSN

John is President and CEO of Mantro Mobile Imaging and Professional Nursing Consultant Services. John is a Registerd Nurse with more than 20 years of nursing and management experience. John has served as the Director of Nursing at several facilities in the Las Vegas area and has personally attended to thousands of PICC placements.

Colleen Carrelli RN, MSN, VA-BC

Colleen is joins the Mantro Mobile Imaging team to provide leadership in Mantro’s expansion of vascular access Division for Southern California and Nevada. Colleen holds a Master’s Degree in Nursing Education from Chamberlain College of Nursing were she graduated with honors. In her new role Colleen will oversee a team of nursing staff providing Peripherally Inserted Central Catheters (PICC) and other vascular access.  Colleen’s role will include education to doctors, nurses and families focusing on reducing central line infections, and deep vein thrombosis occurrences. 

Trevor Leonard

Trevor is a Las Vegas native who loves the field of radiology. Trevor is our X-Ray Supervisor and  leads our X-ray team in Nevada.

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Bryan Campbell

Bryan serves as the Company Administrator for all operations in Nevada and California for both Mantro Mobile Imaging and Professional Nursing Consultant Services, Inc.. Bryan started with Mantro in 2018 and has worked in Healthcare and Hospitality for 10 plus years.

Ryan started with Mantro in 2020 in California. As a technologist Ryan excelled in his duties and expressed his interests in moving up in the field of radiology. Ryan is our X-Ray Supervisor and leads our X-ray operations in California.