Staff

Johanna Rodriguez-Toledo, M.D., FAAP, is a Board Certified Pediatrician and fellow of the American Academy of Pediatrics. 

She completed her residency in Pediatrics at University of Puerto Rico, Medical Sciences Campus in San Juan, Puerto Rico.  Dr. Rodriguez-Toledo graduated with honors from the Autonomous University of Guadalajara, Mexico, were she received her medical degree.  She also completed her Bachelor of Science degree in Biology with honors from the University of Puerto Rico.  Dr. Rodriguez-Toledo is experienced in pediatric inpatient care & outpatient care. 

Her special interests include Newborn Care, Breastfeeding, and Adolescent Medicine. For the past few years, she served as a hospitalist at FVRH where she cared for thousands of children requiring inpatient care & served on the transport team for critically ill children.

Dr. Rodriguez-Toledo was selected for inclusion in the 2013 edition of ' The Latino American Who’s Who' that selects and distinguishes leading Latino professionals throughout the world who have attained a recognizable degree of success in their field of endeavor and thereby contribute to the growth of their industry and culture.  Dr Rodriguez-Toledo has also been selected as an honored member of 'Trademark Women of Distinction Honors Edition 2017'.  This year 2021, Dr Rodriguez-Toledo was awarded Physician of Excellence Award in Pediatrics by the Orange County Medical Association, published on the Orange Coast Magazine Top Doctors 2021 edition.

She enjoys traveling, boating and going to the beach with her husband and two kids.

Dr Rodriguez-Toledo is fluent in English and Spanish.

Dr. Zacharia Reda is board-certified in pediatric medicine, pediatric critical care. He has been in practice for over 22 years, treating thousands of children in primary pediatric care, newborn, adolescent, pulmonary, critical and intensive care.

Dr. Reda served his pediatric internship and residency at Albert Einstein School of Medicine in New York, and at LAC/USC Medical Center in Los Angeles, respectively. Additionally, he completed a pediatric critical care fellowship at UCLA.

He served as Associate Medical Director of Pediatric Intensive Care Unit (PICU) at Miller Children’s Hospital and St. Vincent PICU. He also served as the Associate medical director of PICU at Valley Presbyterian Hospital. Dr. Reda has served as the Medical Director of the Pediatric Intensive Care Unit at Fountain Valley Regional Hospital (FVRH) for the past 15 years. He was voted by his peers as chairman of Pediatric Department at FVRH. Dr. Reda serves on the faculty at HOAG Hospital, Children Hospital of Orange County (CHOC), Miller Children’s Hospital. Mission Hospital and Saddleback Memorial hospital.

Dr. Reda is a clinical associate professor of pediatrics at UCI. He has taught residents and fellows at both UCI and UCLA for many years. He frequently participates in national and international medical society functions to present his research findings. Dr. Reda is specialized in primary pediatrics, newborn, children and adolescent medicine. He is also specialized in pediatric pulmonary, critical care, and emergency medicine. He treats asthma, chronic cough, and premature babies. He has performed over 1000 cases of flexible bronchoscopy to help diagnosed and treated infants and children with lung diseases.

Dr. Reda was voted by his peers as one of the “Best doctors of America in his field, 2013”

Dr. Reda was honored by the Orange County Medical Association (OCMA) as one of the top doctors in his field, as featured in the Orange Coast Magazine 2005- 2021. He was also honored by his peers as one of the best doctors in CA, to be trusted by physicians to care for their own family as featured in the Los Angeles Magazine “Super Doctors” 2008-13.

The medical board requires 25 hours of CME to maintain a physician’s license, every year Dr. Reda participates in numerous international medical meetings and fulfills over 250 CME hrs yearly. He has received several CME awards and recognition from the American medical Association (AMA) and The American Academy of Pediatrics (AAP)

Dr Reda is a Fellow of the following academies:

• American Academy of Pediatrics (AAP)
• American College of Chest Physician (ACCP)

He is also a member of:

• American College of Asthma, Allergy, and Immunology (ACAAI)
• The American College of Physician Executives
• Society of Critical Care Medicine (SCCM)
• European Society of Critical Care

European Society of Critical Care
Dr Reda is fluent in English and French

Jennifer Nguyen Simpson, MD, has completed her residency in Pediatrics at Flushing Hospital Medical Center in New York City and graduated from Ross University School of Medicine. She also received a Bachelor of Science degree in Psychobiology at UCLA. She is experienced in primary pediatric care ranging from newborn to adolescent. 

 For the past few years she has been practicing outpatient pediatric care. She has special interests in newborn care, behavioral & development and adolescent medicine. She values patient care and follows the most updated guidelines. She regularly attends the American Academy of Pediatrics national conferences.

Dr. Simpson has presented her research at medical society functions and has a publication titled “Acute small bowel obstruction in Marfan syndrome unmasking a rare association” in Consultant360, a medical journal that provides clinical information to improve patient care.

Some of her hobbies are interior design and travel. She also enjoys cooking and trying new food with her husband and daughter.

Dr. Simpson is fluent in English and Vietnamese.