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.
"We welcome 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 found Dr. Shilpi Anand about a year ago when my daughter was going through a really rough time with eczema and allergies. Dr. Anand has been amazing with her and helping us understand the connection between allergies and eczema. Dr. Anand is always warm, welcoming and thorough. She makes sure we understand our game plan of treatment and we always leave her office comforted by the fact the we have Dr. Anand and her team at the Asthma and Allergy clinic in our corner.
-Andrew D.
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
Dr Anand is very thorough and effective in her diagnosis. She asked plenty of questions before coming up with a treatment plan. I felt well taken care of here.
-Christine Lao
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
Dr. Shilpi Anand and Nurse Madeline at the Allergy & Asthma Clinic in San Mateo are truly exceptional. They are both incredibly kind, thoughtful, and genuinely care about their patients. From the moment I walked in, they made me feel heard and took the time to fully understand my concerns.
Both of them showed a strong willingness to go the extra mile, ensuring I felt comfortable and informed throughout the entire experience. Their attention to detail, compassion, and patient-first approach really stood out.
Overall, the level of care and support I received was outstanding. I highly recommend Dr. Anand and Nurse Madeline to anyone looking for attentive and genuinely caring providers.
-Sanyam Sachdeva
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.
I can’t express my gratitude enough about my experience that I had with the allergy and asthma clinic . Specially grateful For Dr. ANAND , KHIANA And all the other team members, I felt comfort in their care . I was a complicated case, I did not fall within the standard of testing, but they continued To help me with my challenges and to try to find me some relief. I am grateful when someone also thinks outside the box, Dr. Anand And KHINAU are in my blessings
-Liz Fernandez
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
Dr. Anand has shown an exceptional level of care and attention that I’ve rarely experienced in my years of treatment. She was incredibly thorough and went above and beyond—even referring me to other specialists after noticing some concerns in my blood work. Her diligence and genuine concern for my overall health made all the difference.
After months of careful management under her guidance, I’m finally on the mend. I truly believe Dr. Anand may have saved my life, and I’ll always be grateful to her and her team for the compassionate, comprehensive care they continue to provide. I highly recommend Dr. Anand to anyone seeking an attentive, knowledgeable, and truly dedicated physician.
-Xenia Escalante
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
I am a long-time patient at the Allergy and Asthma Clinic, and the entire staff is great. With that said, I want to highlight Dr. Anand, who has helped me tremendously over the past year. Dr. Anand is a phenomenal immunologist and allergist, and her care has been truly life-changing. My quality of life has dramatically increased, and I am incredibly grateful!
Dr. Anand genuinely cares about her patients, and I would recommend her to anyone seeking an allergy, asthma, or immunology specialist in the area.
-Demetrios
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 feel so fortunate that next day to have met with Dr. Shilpi Anand. With care and compassion, she sat with me and listened to the details of the previous days' events. We discussed possible causes and the physiology of what may be occurring in my body. She formulated a plan for treating the condition with medications, and ordered a battery of lab tests to try to determine the cause. During the process of this discussion, she repeatedly checked in with me to make sure I understood and agreed with her analysis and plan. Everything we discussed was printed out for me to take home, which was extremely helpful in the days and weeks to come. I picked up my new prescriptions, followed her instructions, and within a couple of days my skin was almost completely clear.
I feel so grateful to Dr. Anand for her thoughtful and thorough care, and highly recommend her to anyone needing an allergy specialist.
-Jefferson Greene
"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
Love Doctor Anand, super helpful and very kind. She is so passionate about helping others and really follows up.
-Vivian Kwan
Shilpi Anand, MD is wonderful! She is so kind and caring. She really takes the time to explain everything in a way that’s easy to understand and makes me feel comfortable. Both times I visited, she made me feel like I was in the best hands. I truly appreciate how thoughtful and thorough she is.
-Thunda Choonukoonphong
Dr. Anand is phenomenal! No matter what problem I present her with, she has a great creative solution that hasn’t been tried before and it works! She is kind, patient and carefully explains her recommendations clearly. I have confidence I am going to feel better if I follow her recommendations. Her staff is the best! They are efficient, personable and always kind.
-Virginia
Insect Allergies
Environmental Allergies
Skin allergies
Other CommonAllergies
Nose & Sinus Allergies
Lifestyle Changes
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.
