John Frey, D.O.

On average, we take over 23,000 breaths per day. For most, this activity is performed without second thought. However, for those with underlying lung disease, each breath can be a painstaking and anxiety-provoking task that significantly affects one's quality of life.

As a pulmonologist, my goal is to take the time to actively listen to you and derive an evidence-based plan that is specifically tailored to your needs with the goal of improving your quality of life.

In addition to pulmonary medicine, I get the opportunity to take care of those admitted to the Intensive Care Unit (ICU). Being admitted to the ICU can be incredibly stressful for a patient and their family. My goal is to create open lines of communication and transparency into our care plan in order to ensure everyone feels as comfortable as possible.

Education

• Kansas City University of Medicine and Biosciences

Residency

• Internal Medicine, University of Kansas Medical Center

Fellowship

• Pulmonary & Critical Care Medicine, University of Kansas Medical Center

Certifications

• Critical Care Medicine, American Board of Internal Medicine
• Internal Medicine, American Board of Internal Medicine
• Pulmonary Diseases, American Board of Internal Medicine

Memberships

• American College of Chest Physicians
• American Thoracic Society

Academic Appointment 

• Assistant Professor of Medicine, Mayo Clinic College of Medicine and Science

• Asthma
• Chronic obstructive pulmonary disease (COPD)
• Critical care medicine
• Diagnostic bronchoscopy
• Endobronchial ultrasound (EBUS) bronchoscopy
• Interstitial lung disease
• Lung screening and lung cancer
• Pleural disease
• Robotic-assisted bronchoscopy

• Spectrum of pulmonary manifestations in antineutrophil cytoplasmic antibody-associated vasculitis on chest CT, February 2025.
• Endobronchial valve placement as salvage therapy in the management of hemoptysis, July 2023.
• An uncommon cause of bronchial obstruction, November  2020.
• Bronchoscopic features, associations, and outcomes of organizing pneumonia following allogeneic hematopoietic stem cell transplantation, September 2019.
• Human herpesvirus-6 encephalitis following chemotherapy induction for acute myelogenous leukemia, December 2017.