We offer comprehensive inpatient and outpatient evaluations and follow-up for various disorders of allergy and immune regulation in children. Our physicians are regularly sought out for their consultation services by health care professionals in Northern California and Nevada.

Pediatric Allergy

Our pediatric allergy team offers evaluations and management of various allergic disorders, including:

  • seasonal allergies
  • food allergies
  • drug allergies
  • allergic asthma
  • stinging insect allergy
  • urticaria/anaphylaxis.

The team utilizes skin prick testing, spirometry, laboratory analysis and family education/training to further aid in the development of their treatment plans. Food and drug challenge clinics are conducted weekly to help delineate the establishment of tolerance to these exposures.

Pediatric Immunology

Our Immunology service sees patients and offers treatment recommendations for children with a history of recurrent, severe, or unusual infections, recurrent fevers, low immunoglobulins, and for immune dysregulation syndromes.

Because of the complexity of many of these patients, the Immunology team has established a multidisciplinary presence within the healthcare system. Specialty clinics are offered in conjunction with other services and include 22q11.2 deletion syndrome clinics (with ENT, Genetics, Physical Therapy/Occupational Therapy and Developmental Pediatrics), Early Onset Inflammatory Bowel Disease clinics (with GI), as well as Recalcitrant Cytopenia clinics (with Hematology).  In addition, we are now a primary Newborn Screening (NBS) Immunology Center, performing evaluations of children who have a concern for an immune deficiency based on their newborn screening results.

Pediatric Rheumatology

Our Rheumatology service is available to evaluate and manage patients with suspected or diagnosed rheumatologic conditions including:

  • juvenile idiopathic arthritis
  • systemic lupus erythematosus
  • juvenile dermatomyositis
  • vasculitis
  • systemic sclerosis
  • periodic fever syndromes

Comprehensive articular exams, along with laboratory analysis and imaging, are all offered in our clinics to help with treatment plans. 

Our Team

Victoria Dimitriades sees patients for the following clinical conditions: food allergy, seasonal allergies, atopic dermatitis, recurrent hives, drug reactions, stinging insect reactivity, immunology, recurrent infections, recurrent fevers, low immunoglobulins and periodic fever syndromes. Her research interests include specific antibody deficiency and recurrent infections of the ears, sinuses and lungs. Additionally, she has an interest in patients with inflammation related to immune deficiency as well as hereditary periodic fever syndromes.

Sheryl Boon is a board-certified pediatric rheumatologist who diagnoses and treats childhood inflammatory diseases such as systemic lupus, juvenile idiopathic arthritis, juvenile dermatomyositis and other forms of vasculitis and autoinflammatory disorders. In addition to her medical degree from UC Irvine, Dr. Boon earned a Master's degree in Public Health Nutrition from UCLA. She has clinical interests in lupus and other forms of vasculitis and in nutritional issues in patients with rheumatologic disease. 

Angel Herrera-Guerra is a pediatric rheumatologist at UC Davis Health. He provides medical care to children with rheumatologic conditions such as juvenile idiopathic arthritis, lupus, and juvenile dermatomyositis among others. He has a clinical interest in pediatric systemic sclerosis and pediatric lupus. He is interested in building a system that can provide, in one location, all the services required to provide the best care for systemic sclerosis.

Ahn Nguyen is an allergist and immunologist offering care for children and adults with various allergic and immunologic conditions such as seasonal allergies, hives and angioedema, atopic dermatitis, drug allergies, food allergies, stinging insect allergies and immune deficiency. She has special clinical interest and expertise in allergic rhinoconjunctivitis and asthma.