Photo of William G. Harris, MD

William G. Harris, MD

1140 West La Veta Avenue, Suite 850
Orange, CA 92868
1962.1 miles away
Medical Groups & Affiliations
Providence Affiliated Physicians, St. Joseph
Speaks: English
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Allergy Partners of California

1140 West La Veta Avenue, Suite 850, Orange, CA 92868

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About William G. Harris

Dr. Harris made the decision to pursue a career in medicine, specifically allergy and immunology, because he has always been fascinated with science and wanted to help people overcome their health concerns. To do this, he made sure that he had the educational background and up-to-date training to give his patients the best care possible. After earning his medical degree, Dr. Harris completed residency training in internal medicine and fellowship training in allergy and immunology.

“I see patients who are experiencing chest tightness, shortness of breath, coughing and itchy skin, to name a few, and through comprehensive testing I am able to identify the cause of their symptoms. I then provide them with individualized treatments designed for effective, lasting relief.”

Dr. Harris prides himself on providing his patients with unhurried and informative care in a relaxed environment. He will take the time to explain their diagnoses and any recommended treatment in simple, easy-to-understand terms.

“My patients appreciate this level of personalized care; it makes their office visits a positive experience.”

Medical School

Northeastern Ohio University College of Medicine
1987

Internship

UCI Medical Center
1988

Residency

UCI Medical Center
1990

Fellowship

UCI Medical Center
1993

Board Certifications
  • American Board of Allergy and Immunology, Allergy and Immunology
Allergy Partners of California
1140 West La Veta Avenue, Suite 850
Orange, CA 92868

Medical Groups & Affiliations
Providence Affiliated Physicians, St. Joseph

Affiliated Locations
Providence St. Joseph Hospital - Orange

Clinical Interests

  • Allergen Immunotherapy
  • Allergic Aspergillosis
  • Allergic Colitis
  • Allergic Contact Dermatitis
  • Allergic Disorders
  • Allergic Esophagitis
  • Allergic Gastroenteritis
  • Allergic Granulomatosis
  • Allergic Pneumonitis
  • Allergic Rhinitis
  • Allergic Wheezing
  • Allergies
  • Allergy Shots
  • Allergy Testing
  • Anaphylaxis
  • Anesthetic Agent Testing
  • Angioedema
  • Asthma
  • Breast Cancer Immunotherapy
  • Cancer Immunotherapy
  • Chronic Cough
  • Common Variable Immune Deficiency
  • Drug Allergy
  • Drug Desensitization
  • Dye Allergy
  • Egg Allergy
  • Environmental Allergies
  • Food Allergy
  • Food Allergy Testing
  • Food Challenge Testing
  • Gluten Allergy
  • High Eosinophil Count
  • Humoral Immune Defect
  • Hypogammaglobulinemia
  • Immune Deficiency
  • Immune Deficiency Counseling
  • Immune Dysregulation
  • Immunoglobulin Replacement Therapy
  • Insect Allergy
  • Latex Allergy
  • Mast Cell Activation Syndrome
  • Milk Allergy
  • Mold Allergy
  • Nasal Polyps
  • Patch Tests
  • Peanut Allergy
  • Peanut Allergy Desensitization
  • Penicillin Challenge
  • Persistent Asthma
  • Post Nasal Drip
  • Pulmonary Function Tests
  • Recurrent Infections
  • Seafood Allergy
  • Seasonal Allergies
  • Serum Sickness
  • Severe Asthma
  • Sinusitis
  • Skin Test
  • Specific Antibody Deficiency
  • Urticaria
  • Venom Allergy
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