Meet Our Doctors
Chad Oh M.D.
Dr. Chad Oh received his medical degree in Seoul, South Korea. His post-doctoral fellowship was completed at Northwestern University School of Medicine, followed by a residency at Rush-Presbyterian-St. Luke’s Medical Center and another fellowship at the National Institutes of Health. After completing his education, Dr. Oh joined the faculty at UCLA Medical Center, where he worked as a Professor and eventually became the Chief of the Division of Allergy and Immunology where he trained many younger allergists who are now in practice. Dr. Oh is Board Certified in both Pediatrics and Allergy/Immunology.
Brooke Leon, N.P.
Brooke Leon earned her Bachelor’s degree in Health Sciences with a minor in American Sign Language from California State University East Bay in June of 1994. She then received her Bachelor’s degree in Nursing in May of 1996 and achieved her Master’s Degree in Nursing as a Family Nurse Practitioner at the University of San Francisco in May of 2000. While completing her Master’s degree, she was employed as a registered nurse at the Allergy and Asthma Clinic where she was able to work closely with our medical director, Dr. Engler. During this time, she had the opportunity to assist in the management of patients and help provide ongoing care and education to patients with acute and chronic allergic diseases. As a board certified Nurse Practitioner, she is a member of the Sigma Theta Tau Nursing Honor Society and is a frequent lecturer on the subject of allergy and asthma. She has provided a number of educational seminars to many health care professionals in the community, as well as in other cities on the West Coast. When she is not taking care of patients, Brooke enjoys exercising, baking and cooking. She also loves to participate in outdoor activities and travel with her husband and 2 children.
Dr. Bhushan C. Gupta, M.D.
Dr. Bhushan C. Gupta, M.D.
Dr. Gupta is Board Certified by the American Board
of Allergy and Immunology and the American Board
of Pediatrics. He is a member of the American Academy
of Allergy Asthma and Immunology. Dr. Gupta specializes
in adult and pediatric allergy and asthma and completed his
fellowship in adult and pediatric allergy and immunology at
St. Vincent’s Hospital in New York.
Dr. Gupta was in private practice of Pediatric and Adult
Allergy in New Britain, Connecticut for more than 40 years.
He recently moved to the Bay Area to be near his children
and grandchildren who have settled here. His clinical interests
are Hay Fever, Asthma, Food Allergy, Insect Allergy, Penicillin
Allergy and Urticaria. He does skin testing for food, drug, insect
and environmental allergies, contact testing for sensitivity to
chemicals, metals and other agents, and food and drug
challenges. He also does blood testing in patients for whom
skin testing is not possible.
Dr. Gupta has extensive experience taking care of patients
who have Eczema, Contact Dermatitis and Eosinophilic
Esophagitis. He is particularly interested in the care of patients
with Chronic Sinusitis caused by immunodeficiency. He believes
other medical problems such as diabetes, gastrointestinal, and heart
and eye problems complicate allergy symptoms and vice versa.
He has experience in the use of different biologics used to treat
severe asthmatics and urticarial patients. Dr. Gupta believes
doctor--patient communication and cooperation is the best road
to success and that each patient must have an individual and
unique plan to fit their situation and time commitments.