At the Allergy and Asthma Center of Las Vegas, our highly experienced, recognized, and skillful team is dedicated to providing patients of all ages with accurate diagnoses, and effective treatments to improve their overall health and well-being. Our Board-Certified Las Vegas allergy and asthma care providers are devoted to helping you enjoy an improved quality of life, by helping you to manage your allergies, asthma, and immunodeficiencies.

Dr. Jason Bellak

Las Vegas native Jason Bellak, MD, FAAAAI, FACAAI, FACP is dual Board-Certified in pediatric and adult allergy and immunology as well as internal medicine. As a Las Vegas allergy and asthma physician, Dr. Bellak is uniquely qualified to understand how allergies, eczema, and asthma can reduce quality of life, as he has been diagnosed with the conditions himself.

To that end, Dr. Bellak is passionate about teaching and empowering his patients to live without health limitations. Dr. Bellak had the privilege of assuming ownership of the Allergy and Asthma Center in 2023. The Allergy and Asthma Center was founded by Dr. Joel Katz who cared for patients in the Southern Nevada region for more than 20 years.

Dr. Bellak graduated with honors from UCLA before returning to Reno, NV for medical school at the University of Nevada School of Medicine. After medical school, Dr. Bellak completed his internship and residency in internal medicine at the world-renowned Mayo Clinic. At the University of Wisconsin, he completed allergy, asthma, and immunology training.

Dr. Bellak has participated in multiple laboratory and clinical research studies and has been invited to present his research at national meetings. Dr. Bellak is a fellow of the American College of Physicians (ACP), the American Academy of Allergy, Asthma, and Immunology (AAAAI), and the American College of Allergy, Asthma, and Immunology (ACAAI).

Dr. Bellak is deeply invested in raising the bar of excellence in the diagnosis and treatment of Las Vegas allergies and asthma. He proudly serves as the Nevada state representative for the ACAAI House of Delegates. Delegates play a pivotal role in shaping how the ACAAI supports patients with allergies, asthma, and immune system disorders and the allergists who care for those patients.

Dr. Bellak and his wife, Jennifer, have three children. Despite their own diagnoses of asthma and allergies, Dr. and Mrs. Bellak’s successful treatments allow them to enjoy an active lifestyle. Together, they have completed the Chicago Marathon and multiple half-marathons. They are also avid snowboarders and skiers, who enjoy hiking, biking, and exploring the great outdoors in Nevada and beyond.

Courtney Smith, PA-C

Courtney is a Board-Certified Las Vegas allergy and asthma physician assistant who received her Master of Science in Physician Assistant Studies from Touro University Nevada. She is passionate about delivering patient-centered care and building strong relationships with her patients to best address all of their allergy and asthma needs.

Courtney was born and raised in southeast Michigan and completed her undergraduate education at the University of Michigan (Go Blue!) where she received her Bachelor of Science in Neuroscience.

Courtney is certified by the National Commission on Certification of Physician Assistants and is licensed by the Nevada Board of Medical Examiners. She is also a member of the AmericanCollege of Allergy, Asthma and Immunology.

In her free time, Courtney enjoys reading, CrossFit, board games, nature documentaries, and watching hockey and football.