Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Allergic Diseases Pulmonary Medicine Doctors who treat this condition edit search filters Close Narrow your search By location Phoenix/Scottsdale, AZ By last name There are no doctors whose last name begins with the letter A A There are no doctors whose last name begins with the letter B B There are no doctors whose last name begins with the letter C C There are no doctors whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H Find a doctor whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K There are no doctors whose last name begins with the letter L L There are no doctors whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q active Find a doctor whose last name begins with the letter R R There are no doctors whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V There are no doctors whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: R Matthew A. Rank, M.D. Pediatrician Allergist-Immunologist Internist Phoenix, AZ Areas of focus: Immunotherapy, Food allergy, Atopic dermatitis, Asthma attack, Chronic cough, Eosinophilic esophagitis, Chronic sinusit...is, Hay fever, Allergy Show more areas of focus for Matthew A. Rank, M.D. Christine Rukasin, M.D. Phoenix, AZ Areas of focus: Immunotherapy, Food allergy, Hives and angioedema, Chronic cough, Drug allergy, Eosinophilic esophagitis, Atopic dermat...itis, Asthma, Anaphylaxis, Allergy Show more areas of focus for Christine Rukasin, M.D. By Mayo Clinic Staff Request an Appointment at Mayo Clinic Diagnosis & treatment July 09, 2019 Print Share on: FacebookTwitter Related Associated Procedures Chest X-rays CT scan Spirometry X-ray Show more associated procedures Products & Services Book: Mayo Clinic Book of Home Remedies Book: Mayo Clinic Family Health Book, 5th Edition Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Chronic coughSymptoms & causesDiagnosis & treatmentDoctors & departments Research: It's All About Patients CON-20163700 Patient Care & Health Information Diseases & Conditions Chronic cough