An Arizona native, Dr. Manning has very deep roots in the valley. His interest in allergy and immunology started when he was a patient in the office that he eventually joined.He was very fortunate to start his career under the guidance of his childhood allergist and mentor, Dr. Hartley. This background gives Dr. Manning a unique insight and compassion for his patients.His expertise includes allergies, asthma, sinusitis, food allergies, drug allergies, angioedema and hereditary angioedema, hives, contact dermatitis, aspirin and other drug desensitization, and immune deficiencies. Dr. Manning lectures throughout the United States, oversees a cutting-edge research department within his practice, and is active in educating medical students, residents, and allergy fellows.For many years, Dr. Manning coached his sons in various youth sports. He was active on the boards of the different little league and high school sports. He has always had a love for running and enjoys completing half and full marathons with his daughter. He and his wife are also passionate about animal rescue. Dr. Manning is highly rated in 10 conditions, according to our data. His top areas of expertise are Common Variable Immune Deficiency, Primary Immunodeficiency (PID), Grass Allergy, and Hives.

Mark Schubert is an Allergy and Immunologist in Phoenix, Arizona. Dr. Schubert is highly rated in 3 conditions, according to our data. His top areas of expertise are Grass Allergy, Allergic Rhinitis, Sinusitis, and Nonallergic Rhinopathy.

Christopher Couch is an Allergy and Immunologist in Phoenix, Arizona. Dr. Couch is highly rated in 3 conditions, according to our data. His top areas of expertise are Grass Allergy, Allergic Rhinitis, Sinusitis, and Common Variable Immune Deficiency. Dr. Couch is currently accepting new patients.

Cindy Bauer is an Allergy and Immunologist in Phoenix, Arizona. Dr. Bauer is highly rated in 2 conditions, according to our data. Her top areas of expertise are Eosinophilic Esophagitis, Asthma, Stridor, and Severe Combined Immunodeficiency (SCID). Dr. Bauer is currently accepting new patients.

Claudia Gaefke is an Allergy and Immunologist in Phoenix, Arizona. Her top areas of expertise are Selective Deficiency of IgA and Primary Immunodeficiency (PID). Dr. Gaefke is currently accepting new patients.

Brenna Labere is an Allergy and Immunologist and a Pediatrics provider in Phoenix, Arizona. Her top area of expertise is Chronic Granulomatous Disease. Dr. Labere is currently accepting new patients.

Ifat Krase is an Allergy and Immunologist in Phoenix, Arizona. Their top areas of expertise are Anaphylaxis and Primary Immunodeficiency (PID). Dr. Krase is currently accepting new patients.

Joseph Yusin is an Allergy and Immunologist in Phoenix, Arizona. His top areas of expertise are Asthma, Grass Allergy, Hives, and Allergic Rhinitis.

Richard Wu is an Allergy and Immunologist in Phoenix, Arizona. Dr. Wu has been practicing medicine for over 9 years. His top areas of expertise are Mast Cell Activation Syndrome (MCAS) and Anaphylaxis.

Ronald Mittel is an Allergy and Immunologist and a Pediatrics provider in Phoenix, Arizona. Dr. Mittel is highly rated in 4 conditions, according to our data. His top areas of expertise are Grass Allergy, Hives, Sinusitis, and Allergic Rhinitis. Dr. Mittel is currently accepting new patients.

Peter Uong is an Allergy and Immunologist in Phoenix, Arizona.

Housam Alasaly is an Allergy and Immunologist in Phoenix, Arizona. His top areas of expertise are Ozena, Nonallergic Rhinopathy, Allergic Rhinitis, and Grass Allergy. Dr. Alasaly is currently accepting new patients.

Jennifer Hill is an Allergy and Immunologist in Phoenix, Arizona. Her top areas of expertise are Grass Allergy, Sinusitis, Allergic Rhinitis, and Angioedema. Dr. Hill is currently accepting new patients.

National Commission on Certification of PhysicianAssistants, Board Certified, 1998Rachael Stillwagon, MS, PA-C, is a caring physician assistant at Allergy, Asthma & Immunology, LTD, with two locations in Scottsdale and another in Gilbert, Arizona.Rachael was born in Iowa and raised in Iowa and Wisconsin. In 2000, Rachael began working in the specialty of allergy and asthma, and has been passionate about the field ever since. In 2002, she and her husband moved to Scottsdale, where she continued her work. Rachael is a member of multiple allergy associations locally and nationally. She has served on various professional committees and currently lectures locally on atopic dermatitis.As a physician assistant, Rachael serves as a primary care provider within the clinic. Her responsibilities include history and physical examinations, ordering and interpreting diagnostic tests, prescribing medications, and patient follow-ups. She works personally with each patient to formulate a treatment plan and ensure the best possible care.Rachael and her husband have three children, all born in Scottsdale. She enjoys running, spending time with friends and her large family, volunteering with her children for Boys Team Charity and the National Charity League, as well as various projects at their schools. She loves watching her children participate in their sporting events and other activities!. Her top areas of expertise are Sinusitis, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Allergic Rhinitis, and Food Allergy.

Hiral Thakrar, MD, is an allergist and immunologist at Allergy, Asthma & Immunology, LTD, with two locations in Scottsdale and another in Gilbert, Arizona.She manages adult and pediatric conditions, such as allergies of the nose and skin, hives, asthma, food allergies, and drug allergies. She is board certified in both Internal Medicine and Allergy and Immunology.She is a member of the Western Society of Allergy, Asthma & Immunology, American Academy of Allergy, Asthma & Immunology (AAAAI), and American College of Allergy, Asthma, and Immunology. She has been a mentor for future aspiring allergists in medical school and residency for the past two years as a Chrysalis mentor for AAAAI.Dr. Thakrar has conducted her research in Dupilumab and its effects on patch testing for allergic contact dermatitis, alcohol reactivity in AERD, penicillin allergy, epitope binding, and single sequencing with peanut allergy. Her special interests are asthma, aspirin-exacerbated respiratory disease (AERD), food allergies, and contact dermatitis. She takes an integrative medicine approach to all these diseases.Dr. Thakrar is married and loves to spend time with her 14-month-old baby. In her free time, she enjoys yoga and meditation, traveling, and hiking, and participating in Indian cultural events. Her top areas of expertise are Asthma, Sinusitis, Grass Allergy, and Allergic Rhinitis.

Fadia Habib-Khazen is an Allergy and Immunologist in Phoenix, Arizona. Her top areas of expertise are Allergic Rhinitis, Grass Allergy, Sinusitis, and Hives. Dr. Habib-Khazen is currently accepting new patients.

Praveena Kothur is an Allergy and Immunologist in Phoenix, Arizona. Their top areas of expertise are Grass Allergy, Allergic Rhinitis, Sinusitis, and Hives. Dr. Kothur is currently accepting new patients.

Hugh Mackechnie is an Allergy and Immunologist in Scottsdale, Arizona.

Rebecca Koenigsberg is an Allergy and Immunologist in Scottsdale, Arizona. Dr. Koenigsberg is currently accepting new patients.