Allergist
1250 S. Sunset Ave
Suite 340
West Covina, CA
91790
Dr. Daniel A. Steigelman, M.D., earned his Bachelor of Science in Bioengineering from the University of California, Berkeley, before receiving his medical degree from the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Maryland. He completed his post-graduate medical training through the San Antonio Uniformed Services Health Education Consortium (SAUSHEC), where he finished both his residency in Pediatrics and his specialized fellowship in Allergy and Immunology.
Dr. Steigelman is double board-certified, holding credentials as a Diplomate of the American Board of Allergy and Immunology and a Diplomate of the American Board of Pediatrics. These certifications qualify him to diagnose and manage allergic, asthmatic, and immunologic conditions in both children and adults. Alongside his clinical work, he has stayed active in medical education, serving as an Associate Professor of Pediatrics and Medicine at USUHS.
Before transitioning to private practice, Dr. Steigelman spent his career as an active-duty physician in the United States Air Force. During this time, his leadership roles included serving as the Consultant to the USAF Surgeon General for Allergy and Immunology and directing SAUSHEC's Transitional Year residency program. Following his retirement from active duty in April 2026, he joined Allergy and Asthma Specialist Doctors, Inc., providing dedicated care to patients in the Los Angeles community.
Allergy Testing
Asthma
Chronic Cough
Food Allergies
Immunotherapy
Itchy Eyes
Nasal Allergies
Skin Allergy
Locations (2)
Allergy and Asthma Specialist Doctors, Inc.
94 N Madison Ave
Pasadena, CA, 91101
1250 S. Sunset Ave
Suite 340
West Covina, CA, 91790
More About Dr. Daniel Steigelman, MD
NPI Number
1982816963
Provider's Gender
Male
Reviews
great listener and ordered tests as needed. also very prompt. thank you!
Best way to how you explain
Very attentive and thorough
Dr. Smigiel is caring, professional, knowledgeable, a good listener, and provides good advice. And clinic staff are friendly and helpful. I feel blessed.
Dr. Smigiel was wonderful and took her time to address our concerns about my daughter's possible allergy vs dermatitis. I will definitely come back to her if I have additional concerns and recommend her to others.
Great!
Professional Doctors and she have a friendly receptionist who could also speak Cantonese .
Very in-depth first appointment. I have a plan moving forward to figure out my allergy problems and get an allergy test in a month.
Goof
Good
great doctor
After years of suffering from allergies, I am so grateful to have found Dr. Smigiel. She was patient, attentive and created a care plan that I can manage.
Dr. Smigiel and her staff are professional and the office is very neat and clean.
Thus was my first visit but I feel. Received a lot of information as well as a plan of action to determine my allergens.
Switched insurance and was cautious about my first visit! Dr. Smeigel listened and understood my concerns. She was very attentive and made me feel more at ease.
Dr Smiegel takes time to listen and always has a caring manner.
Muy amables se preocupan por sus pacientes y explican con amabilidad gracias
Dr. Smigiel offers excellent attention to her patients and gives clear explanations and very thorough allergy tests.
She took so much time discussing what was going on and came up with a great care plan!
Good
Friendly, professional and knowledgeable.Details in explaining possible issues and causes of my allergies and test to be done. :)
Fantastic experience! Incredible medical staff and reception staff. Went above and beyond for me. Thank you
Awesome. On time. Everyone was excellent at their jobs and friendly. Loved the Doctor. I haven't felt that way at a doctor's office in a long time.
Great visit, Doctor Smigiel was attentive and receptive to my health concerns.
Really helpful staff. Got the results explained well. Helped in getting me further help with my problem.
I had a great experience with Dr. Smigiel. She took her time to listen to me and you don’t get that often with a doctor. The office was pleasant and clean. Amazing staff. Everyone was so kind and attentive
The staff was pleasant and helpful. I didn't have to wait long for the examination to start. Dr. Smigiel was very patient in explaining each procedure. Overall I had a good experience.
They are always friendly and ask how you are. Very helpful, checking if we took our medicine etc. The doctors are very thorough during office appointment. Great to have a female office staff too.
Nice, on time
Absolutely amazing! Everyone was welcoming, caring and upfront—no hidden financial bill surprises. Very thoughtful, thorough and professional. Informative, and attentive! My son Joaquin was very scared to undergo the “skin prick test” and the person who administered the test was so patient! The assisting Dr. in training was wonderful; offering conversation to distract him! My son is still talking about how nice and fun she was! Dr. Smigiel was informative, and very caring with my son. We love it here!! Thank you for the care you’ve shown us
