
Our Providers Directory


Specialty: Gastroenterology
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
Specialty: Adult Primary Care, Physician Assistants and Nurse Practitioners
Laura Rigby is a nurse practitioner at Caduceus on Thalia. She started as a biochemist doing research with genes causing cancer and teaching Chemistry. She has always been interested in medicine and was influenced by her mother, who was a nurse, and by her uncle who was a physician. She specialized in teaching chemistry to ... read more
Specialty: Physician Assistants and Nurse Practitioners
Nichole Rogers is a Family Nurse Practitioner and specializes in primary and urgent care services. Nichole pursued her interest in nursing, graduating in 2015 with honors, from Azusa Pacific University with a Bachelor’s of Science in Nursing. She took special interest in the neuroscience field, and worked at Hoag Hospital, Newport Beach for five years ... read more
Specialty: Adult Primary Care, Caduceus Physicians, Internal Medicine
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
Specialty: Orthopaedics
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
Specialty: Adult Primary Care, Caduceus Physicians
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
Specialty: Endocrinology
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
Specialty: Adult Primary Care, Physician Assistants and Nurse Practitioners
Christina Marie Turner is a primary care provider and earned her Master of Science in Physician Assistant Studies from Western University of Health Sciences in Pomona, California. She also holds a Bachelor of Arts in Education from Chapman University in Orange, California . Christina has spent time volunteering in the Motel Ministry which provided a ... read more