About Us

About Dr. Doug McMahon Allergy and Astma Specialist

Dr. McMahon grew up in Little Canada, MN with asthma, environmental allergies as well as tree nut allergies. Based on his own symptoms he decided at a young age to pursue a career in Medicine. He went to St. Thomas Academy and then onto Boston College earning a degree in Biology. He then went to Georgetown University where he earned a Master’s Degree in Physiology and Biophysics as well as his Medical Degree while graduating the Senior Class President. He then completed his residency in Pediatrics at the University of South Florida, one of the top programs in the country for pediatric allergic and immunological disorders. He finished his formal education at the University of Wisconsin, Madison in Pediatric and Adult Allergy and Asthma, the top program in the country for Asthma research. 


Dr. McMahon is a Board certified allergy and asthma doctor and is a frequent lecturer at national medical meetings for food allergies and asthma. He's  proud to have served as the director of Outpatient Allergy at the University of Minnesota for 4 years and the president of the Minnesota Allergy Society. He is also the only Allergy trained member of the Twin Cities Children’s Asthma Committee. He is a member of the Food Allergy and Anaphylaxis Network, Anaphylaxis and Food Allergy Association of Minnesota, Minnesota Medical Society, and the American Academy of Allergy, Asthma and Immunology. Given his firsthand experience Dr. McMahon knows what his patients are experiencing, and is excited to be able to relate to his patients while providing the best care. It is his goal to have each of his patients live a ‘normal’ life by working together with an emphasis of treating the person rather than the disorder they may have.


Dr. McMahon is very involved in the community currently volunteering with Big Brothers and Big Sisters of America as well as The Phillips Neighborhood free clinic. He has participated in multiple medical mission trips including South America, Africa and the Philippines.


Dr.McMahon has been named a Top Doctor by his peers in MN and in America for the past 7 years.


Ashleigh Misson, PA-C 


Ashleigh grew up in Southern Minnesota and at a young age developed a passion for medicine and helping others, which led her to pursue a career as a physician assistant. She obtained her Bachelor of Science degree in biology from the University of St. Thomas before obtaining her Master of Science degree in Physician Assistant Studies from Augsburg College.


Ashleigh is a board certified physician assistant and a member of both the Minnesota and the American Academy of Physician Assistants. She considers it her mission to provide compassionate, patient-centered care to all patients. Ashleigh is excited to bring this passion, as well as her own personal experience living with allergies and food sensitivities, to partner with the Allergy and Asthma Center of MN to help patients living with allergies and asthma lead ‘normal’ lives.



Alexa Stilp, PA-C 

Alexa outdoor headshot.jpg

Alexa grew up in the Northeast Metro and as an outdoor enthusiast, she enjoys everything the state of Minnesota has to offer. She has been immersed in healthcare, as an allergy and asthma patient, since she was born. Her experiences have driven her desire to pursue a career as a Physician Assistant and care for patients of all ages. She obtained her Bachelor of Science degree in Biomedical Sciences from the University of Wisconsin - La Crosse. She then attended Saint Catherine University in St. Paul where she earned her Master’s in Physician Assistant Studies. 


Alexa is board certified by the National Commission on the Certification of Physician Assistants. She is also a member of both the Minnesota and American Academy of Physician Assistants. Alexa finds great joy in being able to establish lasting relationships with her patients and deliver thoughtful, expert care. She is delighted to be part of the Allergy and Asthma Center of Minnesota team.  She looks forward to helping every patient enjoy and engage in the activities they so desire here in the wonderful Midwest and beyond. 



Kailee Holmes, CNP 


Kailee grew up in Northern Minnesota and has always had a passion for caring for others, and always knew she wanted to pursue a career in healthcare. After obtaining her Bachelor degree in the Science of Nursing from Bemidji State University, she knew she wanted to continue on in her studies. She then obtained her Master’s degree in the Science of Nursing through Walden University to become a Family Nurse Practitioner. In her spare time, Kailee enjoys hiking, camping, and spending time with her family. 


Kailee is board certified by the American Nurses Credentialing Center. Quality, competent, and safe patient care is what Kailee strives to provide and she thoroughly enjoys helping others to feel their best. She enjoys caring for people of all ages and building long-standing relationships with patients. Kailee is excited to be a part of the Allergy and Asthma Center of Minnesota team and to be able to provide care in the northern part of the state. 



Dr. McMahon In The News:

Dr. Doug McMahon peanut desensitization program in Minnesota
Dr. Doug McMahon from Allergy and Asthma Center of Minnesota discusses peanut allergies on twin cities live
Dr. Doug McMahon from Allergy & Asthma Center of Minnesota discusses Halloween and Food Allergies on KARE 11

Dr. Douglas McMahon