Yi Feng Dennis Chen, MD, is a skilled allergist who serves patients in Bethlehem, PA, with high levels of care and compassion. Dr. Chen is a dual board-certified allergist in Internal medicine and Allergy & Immunology giving him well rounded and in-depth knowledge. In his practice, he believes in empowering patients, considering them the captains of their health, while he serves as a knowledgeable advisor dedicated to enhancing their quality of life. Dr. Chen's peers and patients in New York acknowledged his commitment and competence by voting him the Best Allergist in Brooklyn while practicing in New York.

Dr. Chen's dedication to research, has resulted in multiple publications and distinction due to his conscientious involvements in post-9/ll asthma and allergic diseases research. He has delivered oral presentation at the national level including at the American Academy of Allergy, Asthma & Immunology national meeting. While he is highly accomplished, Dr. Chen adheres to a philosophy of "simplicity in life", and enjoys pursuits such as reading, walking in nature, running, and hiking.


  • Bachelor of Science in Pharmacology | Stony Brook University | Stony Brook, NY ( 2008)
  • Internal Medicine Residency | The Mount Sinai Hospital | New York (2015)
  • Medical Doctor | Stony Brook School of Medicine | Stony Brook, NY ( 2012)
  • Fellowship in Allergy & Immunology | Downstate Medical Center | Brooklyn, NY (2017)



Board Certified Allergy & Immunology

American Board of Allergy & Immunology


Board Certified Internal Medicine

American Board of Internal Medicine