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About Us Allergy & Asthma Center of Duncanville

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Allergy & Asthma Center of Duncanville is a fully staffed multi-physician group specializing in allergy and asthma treatments.

Harold DelasAla, MD, PharmD FAAP, FACP, FAAAAI, FACAAI

Growing up in the Houston suburbs, Dr DelasAlas realized his calling in health care from two exceptional nurses and role models, his parents. He distinguished himself academically by earning his doctorate degree in Pharmacy at the University of Houston with high honors at the age of 23. He went on to excel in medical school at the  University of Texas  Medical Branch, graduating second in his class and elected in the medical honor society, Alpha Omega Alpha. He trained at one of the most prestigious residency programs in Internal Medicine at the Washington University in St Louis/Barnes Jewish Hospital. He completed his Allergy and Immunology subspecialty training at Creighton University, working under a prominent leader and researcher in the field, Dr Thomas Casale. Upon completion, he received appointment as Clinical Assistant  Professor at the University of Nebraska and Creighton University and trained both resident physicians and medical students. Missing his Texan roots, he moved back and joined the Allergy and Asthma Center of Duncanville in 2014 and has served as medical director since 2015. He has been awarded Fellowship status within the American College of Physicians, American College of Allergy, Asthma, and Immunology, and American Academy of Pediatrics.

Click Here to read Dr DelasAlas’s CV.


Anthony Huynh, PA-C

I am from New Orleans, Louisiana and I graduated from the University of New Orleans in 2017 with a Bachelor’s is Biological Sciences. I spent the next 2 years working as a medical assistant at Urgent Care/Family Medicine. I graduated from the PA program at LSU Health Science Center at Shreveport in 2021. I wanted to become a PA because I was always seeing patients come who felt confused on their symptoms, conditions, and treatments. I wanted to learn more about medicine and be able to treat patients as well as help them have a better understanding of their health.

I wanted to pursue allergy, asthma, and immunology because I feel like these patients cannot fully enjoy their daily lives. Their symptoms will always be lingering around and it’s up to us to help them. Minor changes can cause major improvements.

On my free time, I like to exercise, cook, and write poetry.


Kevin Nguyen, MPAS PA-C

Kevin Nguyen is a board-certified Physician Assistant, with experience in Emergency/Primary Care medicine, who joined Asthma and Allergy Center of Duncanville in 2020. Kevin is a graduate from AT Still University School of Osteopathic Medicine with a Master of Science in Physician Assistant Studies in 2019. Kevin is from Arlington, Texas, where he completed his Bachelor of Science at University of Texas at Arlington and Master of Public Health in Epidemiology at University of North Texas Health Science Center in Fort Worth, Texas.


Jesse Astorga, MPAS PA-C

Jesse Astorga is a board-certified Physician Assistant who joined Asthma and Allergy Center of Duncanville in 2020. He graduated from Louisiana State University Health Science Center with his Master of Physician Assistant Studies. He is a native Texan and completed his undergraduate degree in Biology at Texas Tech University. He decided to specialize in Allergy and Immunology to help patients improve their quality of life as he has first-hand experience of what it is like to battle with allergies since childhood. In his spare time, Jesse enjoys being outdoors, watching his favorite sports teams, and refining his culinary skills. Jesse looks forward to meeting you and your family!


Fanta Suwaneh, PA-C

I was born and raised in Gambia, West Africa. I came to the United States in 2009 to further my education, I attended Rust College in Mississippi and graduated with a Bachelor of Science in Biology. I also have a Master’s in Public Health from the University of Memphis. Prior to PA school, I worked as a Clinic Assistant at the Church Health Center in Memphis, TN. I also worked at the West Cancer Center as a Breast Cancer data analyst. I went to the University of Tennessee’s Health Science Center Physician Assistant program in Memphis, TN, and graduated in 2020.

I am passionate about helping people with allergies and asthma, as I myself and my son suffer from allergies and I know how they can affect our daily lives.

In my free time, I love traveling with my family, watching documentaries about different cultures, and watching food shows.

Feel better, sooner.

Let our trained allergy providers help you and your family. Set an appointment with us today!

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