Our Team

Services Offered

Information for Patients

Information for Providers

Maternal Fetal Medicine Physician

Dr. Bryan Oshiro

Dr. Oshiro obtained his M.D. degree from Loma Linda University, where he also completed his residency in obstetrics and gynecology. He subsequently completed a fellowship at the University of Texas in Houston. Dr. Oshiro is board certified in obstetrics and gynecology and Maternal-Fetal Medicine. He has participated in numerous multi-center trials and has published numerous articles and book chapters in the areas of quality improvement, perinatal infectious diseases and high-risk pregnancy conditions.

Chair Department of Gynecology and Obstetrics

Dr. Ronald Johnson

Ronald Johnson M.D. is a board-certified Ob/Gyn specialist who has worked with Riverside University Health System since early 2017. He is a graduate of Loma Linda University School of Medicine and trained in his residency at Loma Linda University Medical Center. He has been involved in resident education for the past 31 years and is currently an Assistant Professor at Loma Linda University School of Medicine. His specialty is gynecologic surgery including minimally invasive approach and gynecologic ultrasound. He is the current Department Chair at RUHS-MC. He is working with Dr. Bryan Oshiro with a $6.38 million grant from First 5 Riverside through the HeRCARe Foundation to improve high risk prenatal care in Riverside County.

Program Director

Sabreen White, MBA

Sabreen has a master’s degree in business and healthcare management along with 16 years of experience in public health and government programs. She is a seasoned project manager with a demonstrated history of budget management and preparation, grant writing, community and government collaboration, IRB/Research Coordination, program evaluation and development.

Patient Services Coordinator

Gloria Fajardo, MPH

Gloria has 23 years of experience as a perinatal health specialist and care management. She is knowledgeable in community programs, education, nutrition, and risk of pregnant moms. In her free time, Gloria has provided education on Spanish radio on topics such as car seat safety, child safety, and community resources for low income moms.

Patient Services Coordinator

Teresa Soto Ordonez

Teresa has 11 years of experience as an OB/GYN Medical Assistant and patient services coordinator. She handles the daily management of referrals which includes, input of data into manage care system, verify member eligibility, provider participation, tracking of pending referrals and follow up with office staff. She has vast experience and knowledge in the area of high-risk pregnancies, as well as patient education. During her spare time she volunteers at community health fairs.

Diagnostic Medical Sonographer

Diana Cabrera

Diana has a bachelor’s degree in radiation science and specializes in high risk obstetric examinations including 3D/4D evaluations. She has several years of experience with RUHS radiology department and transferred to Women’s Health earlier this year.

Diagnostic Medical Sonographer

Amanda Koch

Amanda has a bachelor’s degree in kinesiology, exercise science and an associate’s in diagnostic medical sonography. Her experience includes obstetrics & gynecology; and vascular, including carotid, arterial, and venous ultrasound examinations in both acute care hospitals and outpatient facilities.