Our Providers Directory

Mohammad E. Rassouli MD

Mohammad E. Rassouli MD


Dr. Rassouli received his medical degree at National University of Iran School of Medicine. He completed his residency in neurology and child neurology at University of Wisconsin, Madison and University of North Carolina at Chapell Hill. He completed one year post-doctoral fellowship in neuromuscular disorder at Baylor College of Medicine in Houston Texas. Dr. Rassouli ... read more

Brian Riff MD GI Doctor Yorba Linda

Headshot of GI doctor to accompany the website


Dr. Brian Riff was born and raised in Orange County, California. He attended USC for college graduating with honors in both political science and biological sciences. He then moved to Philadelphia to attend medical school. Following medical school at Jefferson, Dr. Riff stayed in Philadelphia for residency and fellowship at the University of Pennsylvania. During ... read more

Smitha Sathyaprakash MD Internal Medicine Yorba Linda

Female physician headshot

Specialty: , ,

Dr. Smitha Sathyaprakash is a board-certified Internal Medicine physician with a passion for providing comprehensive healthcare to patients 18 years of age and up. She completed her Internal Medicine Residency at Central Michigan University. With nine years of clinical experience, she offers expertise in diagnosing and managing a wide range of adult medical conditions. She ... read more

Leslie Shokes MD Yorba Linda Ortho

Leslie Shokes MD


Dr. Shokes is a seasoned Yorba Linda Ortho and joined the Caduceus physician team in 2010 and is successful in the diagnosis and treatment of both minor and complex orthopaedic conditions. Dr. Shokes dedicates significant time to continuing medical education, and is an avid reader of published orthopaedic research and investigations. Dr. Shokes originally graduated ... read more

Carlos Sobral MD Irvine Family Doctor

Carlos Sobral MD

Specialty: ,

Dr. Carlos Sobral is an Irvine family doctor and his life in medicine started in La Habra and he has been practicing in Orange County for over two decades. He became progressively interested in cholesterol, heart, and stroke risk and his interests took him to advanced lipid testing and analysis. Training Undergraduate 1966 – 70 ... read more

Michael Tran MD Endocrinologist Yorba Linda

Michael Tran MD


Dr. Tran our Yorba Linda Endocrinologist and works hard to achieve the fine balance of managing a busy medical practice, being available for patients, staying atop the latest developments in endocrinology, and spending as much time as possible with his wife and children. Dr. Tran graduated UCLA with his Bachelor of Science in Biology and ... read more

Darlene Tydingco NP

Female provider headshot to accompany bio


Darla Tydingco is a board-certified Women's Health Nurse Practitioner who works in our Caduceus for Women location at the Yorba Linda Packing House. Darla has been a registered nurse since 2006, working first in Labor and Delivery for 13 years, and then in an outpatient OB-GYN clinic for several years. Darla's continued passion for women's ... read more