ABOUT RJ IMAGING, INC.
RJ Imaging provides an array of mobile and stationary radiology modalities such as ultrasound, screening mammograms, and x-ray, servicing areas in Los Angeles County. Some areas include the Santa Clarita Valley, San Fernando Valley, Central Los Angeles, San Gabriel Valley, and Gateway Cities. We pride ourselves in great communication, affordable service, and quick turnaround time for results!
HISTORY & MISSION
Since 2001, RJ Imaging started its humble beginnings through providing mobile ultrasound services for the Los Angeles community. The president of the company began as a sonographer, and wanted to apply the experience acquired from top hospitals such as Norris Cancer Hospital, Cedars Sinai, Harbor UCLA Medical Center, and more, to the outpatient facilities.
As our services won the hearts of many, we began to expand our horizon not only to neighboring cities but also modalities. Not shortly after, RJ Imaging helps women screen for breast cancer through mammogram screenings as well. A few years ago, RJ opened our stationary radiology clinics in Panorama City and Santa Clarita offering ultrasound and mammograms.
RJ Imaging prides in excellent communication and organization to provide smooth workflow. RJ prides in giving back to those who have helped this company grow to serve the community stemming from Los Angeles County, and now to the city of Orange and San Jose. We give tribute to our roots to executing services with fast turn-around results and friendly services.
Our patrons say they love coming to RJ because they feel like family. RJ understands our care does not stop with the patient, but those involved in their care. Families are depending on us to continue to live healthier and happier lives. We strive to always put our best foot forward and ensure everyone is taken care of. We hope to continue to be a helpful tool for every patient's care for the future.
Our Team
Dedication. Expertise. Passion.
The team at RJ Imaging is a group of kind and passionate
individuals that work hard on a daily basis to ensure all patients receive
amazing and compassionate patient care. The RJ Imaging team works well
with all valued patrons to ensure quality care.
Rosanna Ramos
Chief Executive Officer / Diagnostic Medical Sonographer
Rosanna Ramos is the CEO and Founder of RJ Imaging, Inc., with over 20 years of experience in diagnostic medical sonography and healthcare leadership. Since founding the company in 2001, she has driven its growth with a focus on clinical excellence, patient experience, and operational integrity.
Her background across leading clinics and hospitals in Southern California has shaped a strong foundation in both technical expertise and patient-centered care. Under her leadership, RJ Imaging continues to expand its reach while maintaining a high standard of compassionate, quality service.
Janine Cadiz
Radiology Operations Manager / Diagnostic Medical Sonographer
Janine Cadiz is a Radiology Operations Manager and Diagnostic Medical Sonographer at RJ Imaging, where she oversees clinical and operational functions for mobile and stationary imaging services, including the Santa Clarita clinic. She is focused on optimizing workflows, supporting team performance, and ensuring high-quality, patient-centered care.
Janine is experienced in team leadership, process improvement, and cross-functional coordination. She pursued studies in Family Studies & Consumer Sciences at California State University, Long Beach, and holds Associate degrees in Spanish from Moorpark College and Diagnostic Medical Sonography from Casa Loma College.
She is committed to building efficient systems, supporting high-performing teams, and delivering exceptional care to the communities she serves.
LeorizDelle Rivera
Radiology Operations Supervisor
LeorizDelle “Yari” Rivera is the Radiology Operations Supervisor at RJ Imaging. She leads and optimizes daily operations across mobile and in-clinic imaging services. Since joining RJ Imaging in 2022, Yari has been instrumental in strengthening communication across 30+ partner clinics, patients, and internal teams; driving efficient, high-quality service delivery.
Yari holds multiple Associate of Science degrees from College of the Canyons in Business Administration, Entrepreneurship & Small Business Management, Marketing, and Human Resources Management, along with dual Bachelor of Science degrees in Health Sciences and Healthcare Management from Los Angeles Pacific University.
She takes pride in building systems that support both her team and the communities they serve, helping ensure every patient experience is handled with care, efficiency, and compassion.
Annie Angelica Lapad
Lead Radiology Operations Coordinator
Annie Angelica Lapad is the Lead Radiology Operations Coordinator at RJ Imaging, where she supports efficient imaging workflows and ensures high standards in quality and patient care. She holds a Bachelor’s degree in Neuroscience with a minor in Physics from the University of California, Riverside, and a Master’s degree in Medical Sciences with a concentration in Medical Physiology and Pharmacology from the University of Florida.
With a background in healthcare administration and clinical operations, Angelica specializes in image quality review, PACS management, and radiology report transcription. She collaborates closely with technologists and leadership to maintain workflow efficiency, meet turnaround times, and support daily operations across scheduling, communication, and reporting.
She is committed to upholding high standards while making a meaningful impact in radiology operations and patient care.
Kianna Zelaya
Radiology Operations Coordinator
Kianna is a dedicated healthcare professional who earned her Bachelor's degree in Public Health from the University of Hawai'i at Manoa in 2021. She currently serves as a Radiology Operations Coordinator, where she supports efficient workflows and high-quality patient care in a fast-paced environment.
Known for her strong written and verbal communication skills, attention to detail, and ability to manage multiple tasks effectively, Kianna brings a reliable, organized, and proactive approach to her work while remaining committed to continuous growth and excellence.
Smantha Sirichai
Administrative Assistant
Smantha is currently a nursing major and an Administrative Assistant at RJ Imaging. She is committed to her growth within the medical field and aim to use her professional experience at RJ Imaging to further her career with healthcare.
She looks forward to expanding her skills and knowledge with the team.
Banesa Martinez
Lead Ultrasound Technologist
Banesa Martinez is the Lead Ultrasound Technologist at RJ Imaging. Since graduating from Casa Loma College in 2013, Banesa has continuously shown her extremely welcoming and caring personality to her community
She has worked all over Southern California for over 10 years and has been an integral part of the RJ Imaging team.
Samantha Zamarippa
Ultrasound Technologist
Samantha Zamarripa is a Diagnostic Medical Sonographer at RJ Imaging and a proud veteran. She received her Associate’s degree in Business Administration from LA Mission College and completed her Diagnostic Medical Sonography at Casa Loma College. She has a strong passion in creating a welcoming and supportive environment for all those around her.
Karina Martinez
Ultrasound Technologist
Karina is an Ultrasound Technologist at RJ Imaging. Since graduating from Casa Loma College, Karina has studied and trained with RJ Imaging.
Karina's kind personality always makes her patients feel welcomed.
Miyako Takahashi
Mammography Technologist
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Shawn Ramos
Lead Mammography Technologist Assistant
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Ryan Bautista
Senior Mammography Technologist Assistant
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Jayno Santos
Senior Mammography Technologist Assistant
Jayno is a dedicated Senior Mammography Technologist Assistant with a strong commitment to patient care and diagnostic excellence. He supports the mammography team in delivering high-quality imaging services, ensuring that each patient receives compassionate care in a safe and professional environment.
With experience in assisting imaging procedures, patient preparation, and workflow coordination, Jayno plays an essential role in maintaining efficiency and accuracy within the department. He is known for his attention to detail, strong communication skills, and ability to help patients feel comfortable during what can often be a sensitive and important screening process.
Jayno is passionate about contributing to early detection and women’s health, consistently upholding the highest standards of care and professionalism in every aspect of his work.
Gerardo Hernandez
Mammography Technologist Assistant
Gerardo Hernandez is a Mammography Technologist Assistant at RJ Imaging who brings a friendly attitude and easygoing energy to the team. Originally from Long Beach, California, he grew up surrounded by the extreme sports scene, which helped shape his adventurous and active lifestyle.
When he's not at work, you'll likely find him riding BMX, mountain biking, surfing, snowboarding, or out on the water paddleboarding. He enjoys staying active and making the most of the outdoors.
Gerardo is also a proud brother, uncle, and son who loves spending time with his family. He brings that same sense of care, kindness, and connection into his role, helping patients fell comfortable and supported during their visit.