Dr. Engler received his Bachelor of Art degree, with distinction, from Stanford University in 1978. He was elected to the Phi Beta Kappa society when he was still a junior in college. After two years as a medical student at Yale, he returned to Stanford, where he received his M.D. degree in 1982. He went on to complete his internship and residency at Stanford University Hospital and is Board Certified in Internal Medicine. Dr. Engler then received several years of additional training in Allergy, Asthma, and Immunology. He founded The Allergy Clinic in San Mateo in 1987.
Dr. Engler has been recognized for his excellence by Modern Luxury San Francisco Magazine and Modern Luxury Silicon Valley Magazine. He is also a Castle Connolly Top Doctor for 25 years—an honor awarded only to physicians who meet the rigorous, physician-led Castle Connolly review standards for at least 25 consecutive years.
Dr. Engler received his Bachelor of Art degree, with distinction, from Stanford University in 1978. He was elected to the Phi Beta Kappa society when he was still a junior in college. After 2 years as a medical student at Yale, he returned to Stanford where he received his M.D. degree in 1982. He went on to complete his internship and residency at Stanford University Hospital and is Board Certified in Internal Medicine. Dr. Engler then received several years of additional training in Allergy, Asthma and Immunology. He founded The Allergy Clinic in San Mateo in 1987.
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 and specializes in adult and pediatric allergy and asthma. He completed his fellowship in allergy and immunology at St. Vincent’s Hospital in New York. For over 40 years, Dr. Gupta practiced pediatric and adult allergy in New Britain, Connecticut, before moving to the Bay Area to be closer to his family. His clinical interests include hay fever, asthma, food and insect allergies, penicillin allergy, and urticaria. He performs skin and blood testing for allergies, as well as food and drug challenges.
Dr. Gupta has extensive experience treating eczema, contact dermatitis, and eosinophilic esophagitis. He has a special interest in chronic sinusitis caused by immunodeficiency and the impact of other medical conditions on allergy symptoms. He is also experienced in the use of biologics for severe asthma and urticaria.
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.
Dr. Shilpi Anand to our staff! Dr. Anand comes to us after 13 years in the East Bay at Allergy & Asthma Medical Group. She has also practiced in San Francisco and in Pennsylvania. She attended Albany Medical College, completed her residency at Robert Wood Johnson University, and then completed a fellowship in Allergy & Immunology at the University of Pennsylvania.
She has also been a clinical preceptor to medical students and was an Assistant Clinical Professor at both UCSF Medical School and Touro University of California. Dr. Anand is board-certified in Allergy/Immunology, and has extensive experience in both Adult and Pediatric Allergy and Asthma care. Dr. Anand now has appointments available for both new and existing patients.
Brooke Leon grew up in the San Francisco Bay Area and earned her Bachelor’s degree in Health Sciences with a minor in American Sign Language from California State University East Bay in 1994. She then completed her Bachelor’s and Master’s degrees in Nursing as a Family Nurse Practitioner at the University of San Francisco in 2000. While earning her Master’s, she worked as a registered nurse at the Allergy and Asthma Clinic, training closely with Dr. Engler. She gained experience managing patients and providing education on allergic diseases.
As a Board-Certified Nurse Practitioner, Brooke is a member of the Sigma Theta Tau Nursing Honor Society and frequently lectures on allergy and asthma. She has led educational seminars for healthcare professionals in the community and beyond.
At the Allergy and Asthma Clinic, we are dedicated to delivering exceptional care tailored to your unique needs. From the moment you walk through our doors, our compassionate team ensures a warm and personal environment where your health and comfort are our top priorities. Specializing in treating allergies, asthma, and related conditions, we combine innovative treatments with attentive care to help you achieve better health and well-being.
“My experience at the clinic has been very positive. Front desk staff is attentive, the nurses are professional, Dr. Engler was precise with his evaluation and billing was accurate. Even with a constant wave of patients coming through the doors the staff provides professional and courteous service. Would definitely recommend to friends and family”
-Ray W
I've been a patient at The Allergy and Asthma Clinic for over 12 years, and I can't speak highly enough of the care I've received. Growing up with severe pollen allergies, I’ve been on and off allergy shots for years, and this clinic has truly been a lifesaver for me. Read More
-Trevor C
I had an amazing experience at this clinic. Dr. Engler and the staff were all extremely welcoming, warm, and thorough in their various lanes of work from the front desk to billing to the assistants to Dr. Engler himself. Read More
-Christina L
Hands down the best place to go for Allergies and Asthma. The staff is incredibly kind and caring and so professional and helpful. I've been going here for over 30 years and they have gone out of their way countless times to make sure that I was well-cared-for. Read More
-Sandi S.
Had 2 visits here and the recommendations worked to drastically reduce my seasonal allergies. The staff is friendly aNR professional and the office is very clean. They go the extra mile to prevent germ and virus spread.
-David G
Love all the help from Dr. Engler + all the friendly staff! It’s a pleasure receiving care here, and these shots have improved my allergies significantly. It can be 30 minutes wait time to receive your shots during peak hours though, so plan accordingly! 🙂
-Linda Q
Dr. Engler is great and his staff, both medical and administrative, are wonderful. Dr. Engler is competent, caring, and listens better than any doctor I've ever had, constantly and patiently asking if I have any more questions. Read More
-Tom B
First and foremost let me start by saying that these people did one hell of a job figuring out my sinus problems. When I first arrived there, I explained what was going on with me having excessive inflammation in the sinus. Read More
-Johnathon T
“Wow! I'm going to age myself by saying that I haven't received customer care like this in decades! Finally a doctor and staff that are consistently welcoming and caring across the board.”
-Tee J
"I highly recommend coming here to see Dr. Andrew Engler (and shout-out to nurse Jessica) for allergies for experienced and high-quality care. This is one of the best-run doctor's office / clinic I've ever gone to and the people are so nice, patient, helpful (nurses, front desk, doctor). The allergy test was comprehensive (~80 allergens) and aftercare was great. They also had billing come talk to me to make sure I understood the pricing since it was a long-term treatment plan. Great experience."
-Jenny Li
“My experience at the clinic has been very positive. Front desk staff is attentive, the nurses are professional, Dr. Engler was precise with his evaluation and billing was accurate. Even with a constant wave of patients coming through the doors the staff provides professional and courteous service. Would definitely recommend to friends and family”
-Ray W
I've been a patient at The Allergy and Asthma Clinic for over 12 years, and I can't speak highly enough of the care I've received. Growing up with severe pollen allergies, I’ve been on and off allergy shots for years, and this clinic has truly been a lifesaver for me. Read More
-Trevor C
I had an amazing experience at this clinic. Dr. Engler and the staff were all extremely welcoming, warm, and thorough in their various lanes of work from the front desk to billing to the assistants to Dr. Engler himself. Read More
-Christina L
Hands down the best place to go for Allergies and Asthma. The staff is incredibly kind and caring and so professional and helpful. I've been going here for over 30 years and they have gone out of their way countless times to make sure that I was well-cared-for. Read More
-Sandi S.
Had 2 visits here and the recommendations worked to drastically reduce my seasonal allergies. The staff is friendly aNR professional and the office is very clean. They go the extra mile to prevent germ and virus spread.
-David G
Love all the help from Dr. Engler + all the friendly staff! It’s a pleasure receiving care here, and these shots have improved my allergies significantly. It can be 30 minutes wait time to receive your shots during peak hours though, so plan accordingly! :)
-Linda Q
Dr. Engler is great and his staff, both medical and administrative, are wonderful. Dr. Engler is competent, caring, and listens better than any doctor I've ever had, constantly and patiently asking if I have any more questions. Read More
-Tom B
First and foremost let me start by saying that these people did one hell of a job figuring out my sinus problems. When I first arrived there, I explained what was going on with me having excessive inflammation in the sinus. Read More
-Johnathon T
“Wow! I'm going to age myself by saying that I haven't received customer care like this in decades! Finally a doctor and staff that are consistently welcoming and caring across the board.”
-Tee J
"I highly recommend coming here to see Dr. Andrew Engler (and shout-out to nurse Jessica) for allergies for experienced and high-quality care. This is one of the best-run doctor's office / clinic I've ever gone to and the people are so nice, patient, helpful (nurses, front desk, doctor). The allergy test was comprehensive (~80 allergens) and aftercare was great. They also had billing come talk to me to make sure I understood the pricing since it was a long-term treatment plan. Great experience."
-Jenny Li
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First and foremost let me start by saying that these people did one hell of a job figuring out my sinus problems. When I first arrived there, I explained what was going on with me having excessive inflammation in the sinus…after they tested me, I found out that I was being exposed to dust mites which gave me a strong reaction. I followed the doctors guides lines in terms of cleaning my room and ever since, my sinus inflammation went away for good and now I have a healthy sinus. Thank you for everything.
My 10 year old son also has allergies and asthma and the staff makes sure that he feels well taken care of and comfortable, despite his having Autism and ADHD. He actually looks forward to going there with me, whether it be for my allergy shots or even when he needed allergy skin testing. When you’re a patient at the Allergy and Asthma clinic, you are treated as if you are the only patient they have, even when the waiting room is full. Dr. Engler has hired truly excellent staff, from the front desk people to the nurses and medical assistants. If you have allergies and/or asthma and you live on the Peninsula or even in the city, I highly recommend that you visit the Allergy and Asthma Clinic. They are truly amazing and will make you feel so much better.
